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Find cheap flights from Washington to South Korea from $489

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 10/22. 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 6/29
Sat 7/6

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In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Good to know

Low season

February

High season

October

Cheapest flight

$489
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Portland 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
$910
10/27Sun
1 stopChina Airlines
25h 25mSEA-PUS
11/12Tue
1 stopChina Airlines
15h 30mPUS-SEA
$960
10/27Sun
2 stops
31h 32mSEA-GMP
11/20Wed
1 stop
17h 50mGMP-SEA
$1,034
9/1Sun
3 stopsAmerican Airlines
32h 15mPSC-ICN
9/17Tue
3 stopsAmerican Airlines
36h 07mICN-PSC
$1,088
9/1Sun
2 stopsAmerican Airlines
38h 48mPSC-ICN
9/17Tue
2 stopsAmerican Airlines
37h 34mICN-PSC
$1,102
11/3Sun
1 stopEVA Air
24h 50mSEA-GMP
11/15Fri
1 stopEVA Air
21h 20mGMP-SEA
$1,109
8/19Mon
2 stopsCathay Pacific
33h 16mPDX-ICN
11/14Thu
2 stopsCathay Pacific
27h 39mICN-PDX
$1,135
8/19Mon
2 stopsCathay Pacific
33h 16mPDX-ICN
11/12Tue
2 stopsCathay Pacific
35h 25mICN-PDX
$1,142
10/21Mon
2 stops
22h 20mPDX-ICN
10/24Thu
2 stops
17h 58mICN-PDX
$1,152
9/2Mon
1 stopEVA Air
25h 45mSEA-GMP
2/1Sat
1 stopEVA Air
21h 20mGMP-SEA
$1,167

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Recent one-way flight deals

10/22Tue
1 stopHawaiian Airlines
18h 30mPDX-ICN
$489
7/31Wed
2 stops
50h 50mPDX-ICN
$542
8/26Mon
2 stopsCathay Pacific
27h 26mPDX-ICN
$593
9/23Mon
1 stopAir Canada
18h 05mPDX-ICN
$646
10/13Sun
1 stopAir Canada
29h 10mPDX-ICN
$649
8/29Thu
1 stopEVA Air
18h 40mSEA-GMP
$649
7/21Sun
1 stopAmerican Airlines
22h 16mPDX-ICN
$682
9/12Thu
1 stopEVA Air
19h 20mSEA-GMP
$693
7/22Mon
2 stopsAmerican Airlines
32h 30mPDX-ICN
$702
7/17Wed
2 stopsCathay Pacific
34h 03mSEA-ICN
$936

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Last minute flights from Washington to South Korea

Last minute flight, train and bus deals

6/3Mon
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/13Thu
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,203
6/2Sun
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/13Thu
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,211
6/2Sun
multi-stop
25h 30mSEA-ICN
10/2Wed
multi-stop
21h 45mICN-SEA
$1,314
6/2Sun
multi-stop
29h 25mSEA-ICN
10/1Tue
multi-stop
34h 10mICN-SEA
$1,349
6/2Sun
multi-stopCathay Pacific
37h 20mSEA-ICN
6/26Wed
multi-stopCathay Pacific
33h 41mICN-SEA
$1,730
6/4Tue
multi-stopJapan Airlines
16h 30mSEA-GMP
7/31Wed
multi-stopJapan Airlines
31h 15mGMP-SEA
$1,737
6/2Sun
multi-stopAir Canada
29h 10mPDX-ICN
8/22Thu
multi-stopAir Canada
12h 47mICN-PDX
$1,748
6/3Mon
multi-stopAir Canada
32h 40mPDX-ICN
8/22Thu
multi-stopAir Canada
12h 47mICN-PDX
$1,751
6/2Sun
multi-stopCathay Pacific
44h 25mSEA-ICN
6/6Thu
multi-stopCathay Pacific
29h 43mICN-SEA
$1,780
6/4Tue
multi-stopJapan Airlines
16h 30mSEA-GMP
8/1Thu
multi-stopJapan Airlines
31h 15mGMP-SEA
$1,787

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Flights to South Korea

Return flight deals:

South Korea - Washington

Cabin classes:

$1,697
$3,655
$2,569
$850