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Cheap Flights to Seoul

Updated 2026-03-13

From

$349

one-way

Current One-Way Deals to Seoul

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Average One-Way Prices to Seoul

JanFebMarAprMayJunJulAugSepOctNovDec
$490 $450 $420 $390 $370 $400 $440 $420 $360 $349 $400 $520

Cheapest month: Oct (avg $349). Prices are average one-way fares based on historical data.

How to Find Cheap Flights to Seoul

Incheon International Airport (ICN) is Seoul's main airport and one of the best in Asia — consistently ranked top 5 globally. It's about 60-70 minutes from central Seoul by Airport Railroad Express (AREX, $9) or airport bus ($15). Korean Air and Asiana fly nonstop from JFK, LAX, SFO, ORD, SEA, IAH, ATL, and DFW — one-way fares run $400-550. For budget options, T'way Air and Jin Air (Korean budget carriers) don't fly from the US but offer insanely cheap regional flights once you're in Asia. The real money move: Chinese carriers (China Southern via Guangzhou, China Eastern via Shanghai) offer one-way fares as low as $300-380 with a mainland China stop. United and Delta also fly nonstop from their respective hubs. Seoul is a major connecting hub for Southeast Asia — if you're heading to Bangkok, Hanoi, or Manila afterward, routing through ICN often gets you a cheap combo. Book 8-10 weeks in advance. September-October is the cheapest window and also the best weather (crisp fall, beautiful foliage).

Seoul for Digital Nomads

Seoul hits a sweet spot — cheaper than Tokyo, more developed than Bangkok. Budget $1,200-1,800/month for a comfortable nomad life. A goshiwon (small private room) runs $300-500/month, an Airbnb or officetel is $600-1,000. Korean food is cheap and incredible — bibimbap or kimchi jjigae at a local spot is $5-7. Street food is everywhere. US citizens need a K-ETA (Korea Electronic Travel Authorization) — it's easy, apply online, costs $10, approved within hours, gives you 90 days. Hongdae is the young/creative hub with nightlife and cafes. Gangnam is more corporate but has great coworking. Itaewon is the international neighborhood with English-friendly everything. WeWork and FastFive are the main coworking chains — desks start at $150-250/month. Cafes are extremely laptop-friendly (Koreans practically live in them). Internet is the fastest in the world — 100-500 Mbps is standard. Subway system is excellent and cheap ($1.25 per ride).

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Frequently Asked Questions

How much is a one-way flight to Seoul?
One-way flights from the US to Seoul range from $349–$600. Chinese carriers with one stop are cheapest at $300-380. Korean Air and Asiana nonstop run $400-550 depending on the route and season.
What's the cheapest airline to fly to Seoul?
China Southern and China Eastern offer the lowest one-way fares at $300-380 with a mainland China stop. Korean Air and Asiana are pricier but fly nonstop from 8+ US cities. United and Delta also have competitive nonstop fares.
When is the cheapest time to fly to Seoul?
September-October is cheapest and also the best weather — crisp fall air and amazing foliage. May is another good window. Avoid December-January (holiday premium and freezing cold) and July-August (summer peak + monsoon).
Do I need a visa or K-ETA for South Korea?
US citizens need a K-ETA (Korea Electronic Travel Authorization). It costs $10, takes a few hours to approve online, and gives you 90 days. Apply before your flight — most airlines check at boarding.
How do I get from Incheon Airport to Seoul?
The AREX (Airport Railroad Express) is the best option — 43 minutes nonstop to Seoul Station for $9. Airport limousine buses go to major neighborhoods for $15. Taxi is $50-80 and takes 60-90 minutes depending on traffic.

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