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Find cheap flights from Washington to South Korea from $540

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington to South Korea departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 5/28
Tue 6/4

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In the last 7 days travelers have searched 43,623,357 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$540
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Seattle to Incheon

FAQs for booking flights from Washington to South Korea

  • How does KAYAK find such low prices on flights from Washington to South Korea?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to South Korea.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to South Korea?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to South Korea from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to South Korea?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to South Korea with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to South Korea?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to South Korea from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Washington to South Korea

Recent round-trip flight deals

9/16Mon
1 stopChina Airlines
18h 05mSEA-PUS
9/19Thu
1 stopChina Airlines
15h 35mPUS-SEA
$967
10/1Tue
2 stops
24h 10mSEA-PUS
10/29Tue
1 stop
15h 30mPUS-SEA
$1,112
5/13Mon
1 stopTurkish Airlines
31h 00mSEA-ICN
6/23Sun
1 stopTurkish Airlines
33h 25mICN-SEA
$1,210
5/20Mon
1 stopTurkish Airlines
31h 00mSEA-ICN
6/3Mon
1 stopTurkish Airlines
46h 20mICN-SEA
$1,212
4/30Tue
1 stopHawaiian Airlines
19h 25mSEA-ICN
5/12Sun
1 stopHawaiian Airlines
16h 55mICN-SEA
$1,297
5/8Wed
nonstopKorean Air
12h 05mSEA-ICN
5/15Wed
nonstopKorean Air
10h 35mICN-SEA
$1,313
9/23Mon
2 stopsANA
29h 55mSEA-GMP
10/7Mon
2 stopsANA
21h 46mGMP-SEA
$1,314
5/8Wed
1 stopKorean Air
17h 55mSEA-ICN
5/15Wed
nonstopKorean Air
10h 35mICN-SEA
$1,318
9/23Mon
1 stopANA
26h 25mSEA-GMP
10/7Mon
2 stopsANA
21h 46mGMP-SEA
$1,324
5/5Sun
1 stopHawaiian Airlines
19h 20mSEA-ICN
5/19Sun
1 stopHawaiian Airlines
16h 55mICN-SEA
$1,372

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Recent one-way flight deals

10/13Sun
1 stopChina Airlines
18h 00mSEA-ICN
$540
9/22Sun
1 stopChina Airlines
18h 00mSEA-ICN
$544
5/7Tue
3 stops
52h 31mSEA-ICN
$589
10/16Wed
2 stopsWestJet
60h 25mSEA-ICN
$598
8/28Wed
1 stopEVA Air
16h 50mSEA-ICN
$612
9/22Sun
2 stops
33h 02mSEA-ICN
$649
8/30Fri
1 stopEVA Air
16h 50mSEA-ICN
$650
7/26Fri
1 stopWestJet
20h 40mSEA-ICN
$680
8/30Fri
nonstopAsiana Airlines
11h 25mSEA-ICN
$709
10/13Sun
nonstopAsiana Airlines
11h 25mSEA-ICN
$714

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Last minute flights from Washington to South Korea

Last minute flight, train and bus deals

5/2Thu
multi-stop
28h 35mGEG-ICN
5/28Tue
multi-stop
40h 50mICN-GEG
$1,163
4/28Sun
multi-stopTurkish Airlines
31h 00mSEA-ICN
5/5Sun
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,222
5/1Wed
multi-stop
25h 20mSEA-ICN
5/8Wed
multi-stop
27h 25mICN-SEA
$1,242
4/30Tue
multi-stopHawaiian Airlines
19h 25mSEA-ICN
5/12Sun
multi-stopHawaiian Airlines
16h 55mICN-SEA
$1,297
4/28Sun
nonstopKorean Air
12h 20mSEA-ICN
5/7Tue
nonstopKorean Air
10h 15mICN-SEA
$1,357
4/28Sun
multi-stopKorean Air
23h 15mSEA-ICN
5/7Tue
nonstopKorean Air
10h 35mICN-SEA
$1,362
4/29Mon
multi-stopUnited Airlines
16h 16mSEA-ICN
5/1Wed
multi-stopUnited Airlines
20h 44mICN-SEA
$1,378
5/2Thu
multi-stopUnited Airlines
19h 33mSEA-ICN
5/30Thu
multi-stopUnited Airlines
17h 56mICN-SEA
$1,382
4/30Tue
multi-stopEVA Air
25h 15mSEA-ICN
5/6Mon
multi-stopEVA Air
23h 30mICN-SEA
$1,404
4/30Tue
multi-stopEVA Air
17h 30mSEA-ICN
8/31Sat
multi-stopEVA Air
16h 05mICN-SEA
$1,457

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Flights to South Korea

Return flight deals:

South Korea - Washington

Cabin classes:

$1,697
$2,619
$2,643
$900