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Find cheap flights from Washington to South Korea from $529

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 9/22. 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
Sat 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

February

High season

October

Cheapest flight

$529
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 15% 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

10/28Mon
1 stopChina Airlines
17h 40mSEA-PUS
11/12Tue
1 stopChina Airlines
15h 30mPUS-SEA
$903
10/28Mon
1 stopChina Airlines
25h 25mSEA-PUS
11/12Tue
1 stopChina Airlines
15h 30mPUS-SEA
$904
10/30Wed
1 stopTurkish Airlines
45h 05mSEA-ICN
11/26Tue
1 stopTurkish Airlines
33h 55mICN-SEA
$1,009
8/20Tue
2 stops
29h 40mSEA-ICN
10/3Thu
1 stop
14h 40mICN-SEA
$1,024
10/20Sun
1 stopTurkish Airlines
31h 00mSEA-ICN
11/6Wed
1 stopTurkish Airlines
48h 20mICN-SEA
$1,035
9/17Tue
1 stopEVA Air
17h 30mSEA-ICN
10/2Wed
1 stopEVA Air
23h 30mICN-SEA
$1,037
8/26Mon
1 stopEVA Air
16h 50mSEA-ICN
9/16Mon
1 stopEVA Air
15h 45mICN-SEA
$1,038
10/1Tue
2 stops
23h 10mSEA-GMP
10/29Tue
2 stops
26h 19mGMP-SEA
$1,039
8/2Fri
1 stopKorean Air
19h 00mSEA-ICN
8/16Fri
1 stopKorean Air
22h 15mICN-SEA
$1,054
10/29Tue
1 stopKorean Air
30h 10mSEA-PUS
11/12Tue
1 stopKorean Air
15h 30mPUS-SEA
$1,464

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Recent one-way flight deals

9/22Sun
1 stopChina Airlines
18h 00mSEA-ICN
$529
9/23Mon
1 stopChina Airlines
18h 00mSEA-ICN
$543
8/19Mon
2 stops
29h 49mSEA-ICN
$546
9/27Fri
1 stopHawaiian Airlines
18h 15mPDX-ICN
$549
8/10Sat
1 stopWestJet
37h 50mSEA-ICN
$568
9/9Mon
2 stops
31h 10mPDX-ICN
$570
8/8Thu
1 stopWestJet
33h 25mSEA-ICN
$583
8/25Sun
1 stopHawaiian Airlines
18h 30mPDX-ICN
$597
11/3Sun
1 stopEVA Air
24h 50mSEA-GMP
$612
11/5Tue
1 stopEVA Air
25h 35mSEA-ICN
$617

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Search by price

Last minute flights from Washington to South Korea

Last minute flight, train and bus deals

5/20Mon
multi-stop
34h 30mPDX-ICN
6/1Sat
multi-stop
24h 05mICN-PDX
$1,243
5/19Sun
multi-stopTurkish Airlines
31h 00mSEA-ICN
5/29Wed
multi-stopTurkish Airlines
46h 20mICN-SEA
$1,316
5/19Sun
multi-stopCathay Pacific
34h 45mSEA-ICN
5/29Wed
multi-stopCathay Pacific
38h 47mICN-SEA
$1,349
5/21Tue
multi-stopCathay Pacific
35h 45mSEA-ICN
6/4Tue
multi-stopCathay Pacific
28h 42mICN-SEA
$1,415
5/21Tue
multi-stopUnited Airlines
16h 37mSEA-ICN
6/4Tue
multi-stopUnited Airlines
20h 30mICN-SEA
$1,482
5/19Sun
multi-stopUnited Airlines
15h 35mSEA-ICN
5/29Wed
multi-stopUnited Airlines
20h 30mICN-SEA
$1,532
5/21Tue
multi-stopKorean Air
17h 55mSEA-ICN
6/5Wed
nonstopKorean Air
10h 40mICN-SEA
$1,769
5/21Tue
multi-stopKorean Air
17h 55mSEA-ICN
6/4Tue
nonstopKorean Air
10h 15mICN-SEA
$1,770
5/20Mon
multi-stopJapan Airlines
23h 00mSEA-GMP
6/24Mon
multi-stopJapan Airlines
18h 40mGMP-SEA
$1,797
5/20Mon
multi-stopJapan Airlines
16h 30mSEA-GMP
6/24Mon
multi-stopJapan Airlines
18h 40mGMP-SEA
$1,872

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Search by price

Flights to South Korea

Return flight deals:

South Korea - Washington

Cabin classes:

$1,697
$3,803
$1,990
$869