Cheapest Month to Fly Singapore to Korea in 2026: SIN-ICN and SIN-PUS Fares Month-by-Month

Timing your Singapore to Korea flight in 2026 is the single biggest lever on your total trip cost, larger than airline choice, hotel category, or booking channel. Cherry blossom, autumn foliage, Chuseok, typhoon season, and school holidays all pull fares by hundreds of dollars in ways that are broadly predictable if you know the calendar. Here is when to fly, why the prices move, and how to book across Singapore Airlines, Scoot, T'way, Jeju Air, and AirAsia in 2026.

The verdict

For a Singapore traveller in 2026, June and the last two weeks of August are the cheapest months to fly SIN-ICN and SIN-PUS, with round-trip economy typically SGD 380 to 650 on Scoot, T'way, and Jeju Air; SGD 580 to 800 on Singapore Airlines. Cherry blossom (late March to mid-May) and autumn foliage (mid-September to mid-November) sit at peak pricing, SGD 750 to 1,400 round-trip. Chuseok week (late September or early October) is the single most expensive travel window, with LCC round-trip breaching SGD 780 and SQ direct beyond SGD 1,000. Typhoon season (July to September) does not raise base fares but pushes travellers toward flexible tickets at a 10 to 25% premium; Jeju-focused itineraries carry the highest disruption risk. For visitors chasing K-drama filming locations, the shoulder windows (late May, early September) deliver the best fare-to-weather-to-crowd balance. Book 10 to 16 weeks ahead for peak windows and 4 to 8 weeks ahead for off-peak.

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What drives Singapore to Korea flight prices in 2026

Cross-year pricing on SIN-ICN and SIN-PUS in 2026 moves on four levers, in decreasing order of impact.

Lever 1: Korean domestic peak seasons. Cherry blossom (mid-March to mid-May), autumn foliage (mid-September to mid-November), Chuseok (late September or early October), Christmas and New Year (December 20 to January 5), and Lunar New Year (late January or mid-February 2026, depending on lunar calendar) all pull inbound-to-Korea capacity. Cherry blossom peak Seoul week (typically end of March through first week of April in most years) is the tightest for hotels, tours, and flights alike; autumn foliage peak Seoul (mid to end of October) is second-tightest. Chuseok is the one week where Korean domestic travel doubles or triples in price and international inbound follows.

Lever 2: Singapore school holidays and long weekends. March school holidays (early to mid-March), June school holidays (early to mid-June), September school holidays (early September), and November-December year-end break (mid-November to early January). Family bookings triple in these windows; airlines raise fares 15 to 35% versus adjacent weeks. Long weekends (Hari Raya Puasa, Vesak Day, National Day, Christmas) create 3 to 5 day travel bumps.

Lever 3: Carrier capacity and competition. Scoot, T'way Air, Jeju Air, and AirAsia have all run SIN-ICN routes on rotational schedules through 2025 to 2026. When more LCC capacity is available (weekly frequency, seats per flight), prices sit lower; when LCCs cut a route or pause seasonal service, fares tighten. Singapore Airlines, Korean Air, and Asiana Airlines fly the route year-round with more stable pricing but higher base fares. In 2026, LCC SIN-ICN capacity is close to a post-pandemic high, keeping off-peak fares under SGD 500 achievable.

Lever 4: Typhoon and weather disruption pricing. July to September typhoon exposure does not raise the ticket price itself but shifts booking behaviour toward flexible-fare classes. Travellers pay a 10 to 25% premium for changeable or refundable tickets; base restricted economy remains at off-peak pricing in July and August. Jeju-focused itineraries face higher disruption risk.

Layering these together produces the 2026 pricing shape below.

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Month-by-month: SIN-ICN and SIN-PUS pricing in 2026

Round-trip economy fares in SGD, indicative for booking 6 to 12 weeks ahead in advance economy. Actual on-the-day prices depend on booking window, day of week, promo availability, and carrier-specific seat inventory.

SIN-ICN (Singapore to Seoul Incheon)

Month (2026)	Scoot	T'way Air	Jeju Air	Singapore Airlines	Korean Air / Asiana	AirAsia (via KUL)	Notes
January (post New Year)	420 to 560	440 to 580	430 to 570	620 to 780	660 to 820	400 to 540	Weather cold; ski appeal; mid-tier prices
February (Lunar New Year adjacent)	520 to 780	540 to 800	530 to 790	720 to 950	750 to 990	500 to 720	Lunar NY spike late Jan or mid-Feb
March (early, pre cherry blossom)	480 to 620	500 to 640	490 to 630	680 to 830	700 to 860	460 to 600	Prices climb steadily through month
March (late) to April (mid)	750 to 1,050	780 to 1,080	770 to 1,070	950 to 1,300	990 to 1,350	700 to 1,000	Cherry blossom peak, tightest week end-March
Late April to mid-May	620 to 850	640 to 880	630 to 870	800 to 1,050	830 to 1,090	580 to 820	Late blossom in Gangwon; prices ease
Late May	480 to 620	500 to 640	490 to 630	680 to 840	700 to 870	460 to 600	Sweet spot: pleasant weather + falling prices
June (first half)	380 to 500	400 to 520	390 to 510	580 to 720	600 to 750	380 to 520	Cheapest of the year alongside late August
June (second half)	460 to 620	480 to 640	470 to 630	640 to 800	660 to 830	440 to 600	SG June school holiday spike
July	480 to 640	500 to 660	490 to 650	660 to 830	680 to 860	460 to 620	Typhoon season starts; base fares moderate
August (first half)	500 to 680	520 to 700	510 to 690	680 to 860	700 to 890	480 to 640	National Day long weekend adds SGD 50 to 100
August (second half)	400 to 540	420 to 560	410 to 550	600 to 740	620 to 770	380 to 520	Cheapest window alongside early June
September (first two weeks)	460 to 620	480 to 640	470 to 630	640 to 800	660 to 830	440 to 600	Pleasant weather; pre-Chuseok
September (Chuseok week, ~24 to 26)	620 to 900	640 to 940	630 to 920	850 to 1,150	880 to 1,180	580 to 860	Single most expensive week
Late September to mid-October	620 to 850	640 to 880	630 to 870	800 to 1,050	830 to 1,090	580 to 820	Autumn foliage starts north; foliage in Seoul mid-Oct
Mid-October to mid-November	750 to 1,050	780 to 1,080	770 to 1,070	950 to 1,300	990 to 1,350	700 to 1,000	Autumn foliage peak Seoul; second-highest window
Late November	540 to 780	560 to 800	550 to 790	720 to 950	750 to 990	520 to 720	Foliage past; winter approaching
December (early)	500 to 700	520 to 720	510 to 710	680 to 900	700 to 940	480 to 660	SG school holiday demand rises
December 20 to January 5	780 to 1,200	800 to 1,240	790 to 1,230	1,050 to 1,400	1,080 to 1,450	720 to 1,100	Christmas/NY peak; ski demand

SIN-PUS (Singapore to Busan Gimhae)

SIN-PUS pricing broadly tracks SIN-ICN with a SGD 50 to 150 premium reflecting less capacity, fewer direct options, and higher per-seat cost.

Month (2026)	Scoot Direct	Jeju Air (seasonal)	SQ + KE (via ICN one-stop)	Notes
January	480 to 640	490 to 660	720 to 900	Winter; occasional promo
February	580 to 900	590 to 920	830 to 1,090	Lunar NY spike
March	540 to 720	550 to 740	780 to 980	Pre-cherry blossom
Late March to April mid	820 to 1,200	840 to 1,220	1,050 to 1,450	Cherry blossom peak; Busan blossoms end-March
Late April to mid-May	700 to 970	720 to 990	900 to 1,200	Prices ease
Late May	540 to 700	550 to 720	780 to 970	Sweet spot
June (first half)	460 to 580	470 to 600	680 to 830	Cheapest window
June (second half)	540 to 720	550 to 740	750 to 920	SG June school holidays
July	560 to 740	570 to 760	770 to 940	Typhoon exposure moderate
August (first half)	580 to 780	590 to 800	780 to 970	National Day long wknd
August (second half)	480 to 640	490 to 660	720 to 870	Cheapest window
September (first two weeks)	540 to 720	550 to 740	750 to 920	Pleasant, pre-Chuseok
Chuseok week	720 to 1,050	740 to 1,080	970 to 1,310	Most expensive week of year for PUS
Late September to mid-October	720 to 970	740 to 990	900 to 1,200	Foliage picking up in Busan
Mid-October to mid-November	820 to 1,200	840 to 1,220	1,050 to 1,450	Foliage peak, Busan and southern coast
Late November	620 to 900	640 to 920	830 to 1,090	Post-foliage
December (early)	580 to 810	590 to 830	780 to 1,020	SG school hol demand
December 20 to January 5	880 to 1,350	900 to 1,380	1,180 to 1,600	Christmas/NY peak

Prices are SGD round-trip economy indicative fares; actuals vary by booking date, day of week, and promo. Use as directional to plan a target window, then price-check with Skyscanner-SG, Trip.com, and airline direct sites in the last 6 to 12 weeks before travel.

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The cheapest three months to fly SIN-Korea in 2026

#1 June (first half). Weather is warm and mostly dry, cherry blossom crowds are gone, typhoon season has not started, and Chuseok is months away. Scoot SIN-ICN sits SGD 380 to 500 round-trip; SIN-PUS SGD 460 to 580. The catch is Singapore's early-June school holiday which pulls prices up for one week; time your booking to the first week and second week of June, avoiding the SG mid-year school break peak.

#2 August (second half). Post-National Day long weekend, typhoon season is active but base fares dip because Korea travel demand from Singapore is soft. Scoot SIN-ICN SGD 400 to 540, SIN-PUS SGD 480 to 640. Book flexible fare (SGD 50 to 100 extra) or travel insurance with trip curtailment cover; the disruption risk from a named typhoon is real, especially for Jeju itineraries.

#3 Late May and early September. Not the absolute cheapest but the best fare-to-weather ratio. Late May: cherry blossom peak has passed, cafes and hiking trails empty out, warm and mostly dry weather. Early September: post-summer heat, pre-Chuseok, pleasant temperatures. Scoot SIN-ICN SGD 460 to 620.

The single most expensive week to fly in 2026 is Chuseok (24 to 26 September plus adjacent substitute holiday). Avoid this week outbound if you have flexibility. The second most expensive block is autumn foliage peak Seoul, mid-October to first week of November.

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Which carrier to book on which route

Singapore Airlines (SQ) direct SIN-ICN. Best for anyone with checked baggage, meals-included preferences, or schedule reliability needs. SQ operates 2 to 3 daily SIN-ICN flights year-round, mostly wide-body. Round-trip economy: SGD 580 to 1,400 depending on season. Business round-trip: SGD 3,800 to 6,200. Advantage: KrisFlyer miles accrual, seat selection included on higher fare classes, priority baggage.

Scoot direct SIN-ICN and SIN-PUS. Best LCC option for families with luggage flexibility, backpackers, and anyone with a firm date. Scoot SIN-ICN 5 to 7 weekly frequency (2026 typical); SIN-PUS 3 to 5 weekly frequency (seasonal). Round-trip economy: SGD 380 to 1,200. Advantage: Singapore-domiciled, easier claim and change support than foreign LCCs.

T'way Air SIN-ICN. Korean LCC, 3 to 5 weekly frequency in 2026. Slightly less mature Singapore ground support than Scoot but competitive fares. Round-trip: SGD 400 to 1,080. Advantage: bilingual crew, more comfortable seat pitch than some LCC peers.

Jeju Air SIN-ICN and seasonal SIN-PUS. Korean LCC with strong domestic network within Korea (Jeju, Busan). Round-trip SIN-ICN: SGD 390 to 1,070. Advantage: if your itinerary includes Jeju Island, easy connection through their domestic network.

AirAsia via Kuala Lumpur. Not a direct option but often the cheapest one-stop. SIN-KUL-ICN round-trip: SGD 380 to 1,100. Advantage: cheapest headline fare. Disadvantage: 3 to 5 extra hours total travel time, KUL layover, less-frequent schedule adjustments.

Korean Air and Asiana Airlines direct SIN-ICN. Full-service carriers with strong Korean domestic connections. Round-trip: SGD 600 to 1,450. Advantage: extensive Korean domestic connectivity for onward legs (Busan, Jeju, Daegu).

For most Singapore leisure travellers in 2026, the pragmatic ranking is: (1) Scoot for value, (2) SQ for reliability and inclusions, (3) T'way and Jeju Air for LCC alternatives when Scoot is booked out, (4) AirAsia via KUL for the absolute cheapest fare if time flexibility exists, (5) Korean Air or Asiana for onward-Korean-domestic itineraries.

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Timing K-drama filming location visits

For fans planning trips around K-drama filming locations (Nami Island for Winter Sonata, Petite France for K-drama backdrops, Gyeongbokgung Palace, Bukchon Hanok Village, coastal Gangneung for autumn drama shoots), season matters as much as the location.

• Cherry blossom filming era (late March to mid-April): Yeouido Park cherry blossom shots, Gyeonghwa Station in Jinhae (Busan-adjacent), Seokchon Lake at Lotte World Tower. Flight prices are at peak (SGD 750 to 1,400 SIN-ICN); factor this into total budget.
• Autumn foliage filming era (mid-October to first week of November): Nami Island metasequoia lanes, Naejangsan National Park, Bukhansan hiking backdrops. Flight prices second-highest of the year (SGD 750 to 1,400).
• Summer coastal drama era (July to August): Gangneung, Sokcho, Busan beaches. Typhoon disruption risk is real; check Korea Meteorological Administration forecasts and buy travel insurance with trip curtailment cover.
• Winter romance era (December to February): Ski resorts (Yongpyong, Alpensia), Nami Island snow scenes, Everland lights festival. Christmas and Lunar New Year windows spike prices; late January and February off-peak windows are cheaper (Scoot SGD 420 to 780).

Book Klook for K-drama filming location tours from Seoul (SGD 65 to 180 per person for group day-tour options including Nami Island, Petite France, Garden of Morning Calm circuit); check current published rates and durations on individual product pages.

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How to use this: buyer profiles

Buyer profile	Recommended path	Why
Cherry blossom first-timer, flexible on year	Book Late March to April 2026 SQ or Scoot 12+ weeks ahead	Peak pricing but the classic experience; early booking saves 15 to 25%
Budget backpacker, flexible dates	Late August or first two weeks June Scoot SIN-ICN	Cheapest fares of the year; sub-SGD 500 round-trip achievable
Family of four, June school holiday	SIN-ICN via SQ direct 8+ weeks ahead	Baggage and reliability matter more than SGD 100 to 200 fare saving
K-drama filming location tour focus	Late May or early September Scoot SIN-ICN	Pleasant weather, moderate prices, empty tour groups
Busan-focused foodie trip	Late May or late August Scoot direct SIN-PUS	Direct Busan flight best for beach and Haeundae priority
Solo autumn foliage traveller	Late October SQ or Scoot to ICN, KTX to regional	Peak pricing but the classic autumn foliage window
Ski trip to Yongpyong or Alpensia	Late January or early February Scoot SIN-ICN	Post-New Year LCC dip; solid ski conditions
Business traveller with flexibility	SQ direct + KrisFlyer miles + flexi fare	Miles + reliability + change flexibility outweigh price minimisation
Jeju Island-only trip	Scoot SIN-ICN + Jeju Air domestic ICN-CJU	Combining flights via Jeju Air network is cheaper than SIN-PUS ferry option
Golf trip to Jeju	Late April to May or October Scoot SIN-ICN + domestic to CJU	Best golf weather; moderate flight pricing

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What this means in practice

In practice, a Singapore couple planning a 7-day Seoul cherry blossom trip should book Scoot SIN-ICN for late March 2026 by mid-January at the latest, targeting SGD 780 to 950 round-trip economy per person. Layer in hotel via Agoda (Myeongdong or Hongdae 4-star SGD 180 to 280 per night) and pre-book Nami Island and Petite France day tours via Klook. Total 7-day couple trip lands SGD 4,800 to 6,500 including flights, hotels, tours, meals, and metro. Track fares from December using Skyscanner-SG price alerts; if Scoot drops a promo below SGD 750, book immediately. Stack ShopBack cashback across Klook, Agoda, and Trip.com on the travel category page.

A second scenario: a solo backpacker with 12 days flexibility, target August 2026. Book Scoot SIN-ICN for the second half of August (SGD 400 to 540 round-trip), Agoda hostels or 2-star hotels in Hongdae or Gangnam (SGD 40 to 90 per night), Klook for T-money transit card and Nami Island tour. Total 12-day trip lands SGD 1,600 to 2,400. Typhoon exposure is real for the last week of August; if the itinerary can shift a week later into September, do so for lower risk.

A third scenario: a family of four planning June school holiday. Fly SQ direct SIN-ICN (2 adults + 2 children, SGD 620 to 800 per person round-trip economy = SGD 2,480 to 3,200 flights), book Agoda for family-friendly 4-star Seoul hotels (SGD 250 to 400 per night x 7 nights = SGD 1,750 to 2,800), and pre-book Everland tickets, Nami Island, and KTX Seoul-Busan return on Klook. Total 7-day family trip: SGD 8,500 to 12,000 including meals and metro. Book by mid-March to lock in June prices.

Klook, Agoda, and Trip.com are all ShopBack partners; earn cashback on Korea travel bookings via the travel category page on ShopBack. Skyscanner-SG is used for price monitoring and comparison; final booking direct with the airline is often cheapest for LCC and comparable for full-service.

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When this does NOT apply

• You are booking business or first class. Premium cabin pricing tracks a different curve: peak windows spike less relative to off-peak, promo events (Krisflyer miles sales, SQ Business promos) matter more than seasonal timing.
• You are travelling on award tickets (KrisFlyer, Krisflyer Miles, Asiana Club). Availability and taxes drive the decision, not cash fare.
• You are travelling for a specific event (concert, sports, industry conference). Event dates fix your travel window; price shopping is limited to booking channel and carrier.
• You are combining Korea with Japan on a single itinerary. Multi-stop pricing is different; consider open-jaw options (SIN-ICN, ICN-NRT, NRT-SIN) or one-way pricing math.
• You are a Singapore expat returning home. Home leave and immigration timing matter more than fare optimisation.
• You are travelling for a wedding or family event with a fixed date. Date fixed, so book early (12+ weeks) regardless of season.
• You have credit-card lounge access or elite status. Full-service SQ often beats LCC on total value when lounge, priority boarding, and baggage-included are already sunk benefits.

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Frequently asked questions

When is the absolute cheapest week to fly Singapore to Seoul in 2026?

The second and third weeks of June and the last two weeks of August are typically the cheapest weeks to fly SIN-ICN in 2026. Round-trip economy on Scoot, T'way, or Jeju Air lands SGD 380 to 500. AirAsia via KUL is SGD 400 to 540. Singapore Airlines direct is SGD 580 to 720. These weeks sit between school-holiday spikes and before autumn foliage prices lift. Avoid the last week of September and first week of October (Chuseok) even if the calendar overlaps, because prices triple on domestic legs and international add-ons.

How much do cherry blossom trips to Korea cost in flights alone in 2026?

For travel between mid-March and mid-May 2026, Singapore to Seoul round-trip economy runs SGD 750 to 1,400 depending on carrier and booking window. Late March to early April (peak Seoul cherry blossom) is the tightest week. Scoot SIN-ICN sits at SGD 750 to 950, T'way and Jeju Air at SGD 780 to 1,000, Singapore Airlines direct at SGD 950 to 1,400. Book 8 to 14 weeks ahead to lock in cheaper LCC seats. Cherry blossom typically peaks late March in Busan and Jeju, early April in Seoul, and mid-April in Gangwon-do.

Is it cheaper to fly Scoot or Singapore Airlines to Korea in 2026?

Scoot is cheaper on the base fare (SGD 380 to 950 round-trip economy across the year for SIN-ICN) but Singapore Airlines is more competitive than most travellers realise once you add baggage, seat selection, meals, and schedule flexibility to Scoot. SQ SIN-ICN round-trip economy runs SGD 580 to 1,400 depending on season, with 30kg baggage, meals, and entertainment included. For a solo traveller with one checked bag over a 7 to 10 day trip, SQ often sits within SGD 100 to 200 of a Scoot fare after add-ons. For a family of four with multiple bags, SQ can be the cheaper total. For a backpacker with cabin baggage only, Scoot wins outright.

Which is cheaper to fly into: Incheon (ICN) or Busan (PUS) from Singapore?

SIN-ICN is typically cheaper than SIN-PUS by SGD 50 to 150 round-trip in 2026 because ICN has more direct capacity from Singapore (SQ, Scoot, KE, OZ direct plus one-stops via KUL, HKG, TPE), whereas SIN-PUS has fewer direct options (Scoot direct, some Jeju Air seasonal, otherwise one-stop via ICN). A round-trip on Scoot SIN-PUS runs SGD 460 to 780; SIN-ICN on Scoot runs SGD 380 to 700 same window. If your itinerary is Busan-first, factor whether ICN + KTX Seoul to Busan (about 2.5 hours, KRW 60,000 to 80,000) is cheaper total than direct SIN-PUS.

Does typhoon season affect flight prices from Singapore to Korea?

Yes but indirectly. Typhoon season in Korea runs July to September, peaking August and early September. Airlines do not raise base fares in response, but flight disruption risk rises. Refundable and flexible fares command a 10 to 25% premium vs restricted economy during these months. Jeju-focused itineraries are the most exposed; Seoul is less affected. For August travel, budget an extra SGD 40 to 100 for the flexibility upgrade or purchase travel insurance with trip curtailment cover before any typhoon is named by the Korea Meteorological Administration.

When is Chuseok in 2026 and why does it push flight prices up?

Chuseok in 2026 falls on 24 to 26 September (Thursday to Saturday), with the government-designated substitute holiday adjacent. It is Korea's biggest domestic travel week alongside Lunar New Year. Domestic flights, KTX tickets, and hotels in Seoul, Busan, and Jeju all triple in price for the surrounding 10-day window. International inbound flights to Korea from Singapore rise 15 to 35% versus adjacent weeks (Scoot SGD 550 to 780; SQ SGD 850 to 1,100). Flying inbound to Korea just after Chuseok (last week of September) is cheaper than flying out during the holiday itself.

How far in advance should I book a Singapore to Korea flight in 2026?

For peak windows (cherry blossom late March to mid-May, autumn foliage late September to mid-November, Chuseok, Christmas and Lunar New Year), book 10 to 16 weeks ahead. Cheapest LCC seats sell out first; SQ pricing is more stable but 12+ weeks ahead still saves 10 to 20% versus 4 weeks out. For off-peak (June, most of August, mid-January to early March), 4 to 8 weeks ahead is often fine and last-minute Scoot promos occasionally beat advance bookings. Sign up for airline price alerts and Skyscanner or Trip.com price monitoring for target dates.

Should I book direct with the airline or through Agoda, Trip.com, and Skyscanner?

For LCC (Scoot, T'way, Jeju Air, AirAsia), direct-airline booking is usually cheaper or equivalent, with better claim and change support. For full-service (SQ, Korean Air, Asiana), Trip.com and Skyscanner-listed OTAs occasionally undercut direct by 3 to 10% on specific routes and dates, but change and refund processing is slower via OTA. As a rule: check aggregator (Skyscanner-SG, Google Flights) to find the best price, then book direct with the airline if the difference is under SGD 30. Book through the OTA when the savings clear SGD 50+ and your itinerary is confirmed.

Can I fly Singapore to Korea via Kuala Lumpur cheaper than direct?

Sometimes yes. AirAsia SIN-KUL-ICN routing is often SGD 40 to 120 cheaper than direct SIN-ICN LCC, at the cost of 3 to 5 extra hours total travel time and one KUL layover. Scoot occasionally offers competitive SIN-KUL-KIX-ICN or SIN-KIX-ICN combinations with similar tradeoffs. For families with kids and lots of luggage, the direct SIN-ICN via SQ or Scoot is worth the SGD 80 to 150 premium; for solo travellers with cabin baggage and time flexibility, the one-stop via KUL saves meaningful money.

What is the best month to combine cheap flights with pleasant weather in Korea?

Late May to early June is the sweet spot in 2026. Cherry blossom peak crowds have thinned, weather is warm (18 to 26 degrees C) and mostly dry, and flight prices drop from cherry blossom peaks. Scoot SIN-ICN sits at SGD 480 to 620, SQ at SGD 680 to 850. Autumn (early to mid-September, before Chuseok and foliage peak) is another good window: warm weather and mid-tier pricing (Scoot SGD 460 to 620). Both windows deliver pleasant hiking, city walking, and outdoor cafe conditions without peak-season crowds or typhoon risk.

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Key takeaways

• June and second half of August are the cheapest months to fly SIN-ICN in 2026, Scoot round-trip SGD 380 to 540
• Cherry blossom late March to mid-May: peak pricing SGD 750 to 1,400 round-trip
• Autumn foliage mid-October to mid-November: second-peak pricing SGD 750 to 1,400
• Chuseok week 24 to 26 September 2026: single most expensive week of the year
• Typhoon season July to September: base fares moderate, flexible-fare premium worth considering
• SIN-PUS runs SGD 50 to 150 more than SIN-ICN; consider ICN + KTX to Busan as alternative
• Book 10 to 16 weeks ahead for peak windows; 4 to 8 weeks ahead for off-peak
• Scoot direct is cheapest LCC; SQ competitive once bags and inclusions factored
• AirAsia via KUL adds 3 to 5 hours travel time but SGD 40 to 120 savings
• Late May and early September are the sweet-spot windows for fare-to-weather-to-crowds balance

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Disclaimer

The views and recommendations expressed in this article are those of the author.

Airline pricing, route capacity, promotional offers, typhoon forecasts, and holiday calendars are subject to change. Please verify fares and schedules directly with Singapore Airlines, Scoot, T'way Air, Jeju Air, AirAsia, Korean Air, Asiana, and current OTA quotes on Skyscanner, Trip.com, and Agoda before making a booking. This article is intended for general informational purposes only and should not be considered professional travel or financial advice.