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Find cheap flights from Washington to South Korea from $485

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 9/4. 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 6/22
Sat 6/29

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In the last 7 days travelers have searched 43,800,826 times on KAYAK, and here is why:

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Good to know

Low season

February

High season

October

Cheapest flight

$485
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 19% 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

8/28Wed
2 stops
34h 57mPDX-ICN
9/9Mon
2 stops
33h 27mICN-PDX
$1,073
9/2Mon
1 stopEVA Air
25h 45mSEA-GMP
9/13Fri
1 stopEVA Air
21h 40mGMP-SEA
$1,075
9/1Sun
3 stopsAmerican Airlines
32h 15mPSC-ICN
9/17Tue
3 stopsAmerican Airlines
36h 00mICN-PSC
$1,088
9/1Sun
2 stopsAmerican Airlines
38h 48mPSC-ICN
9/17Tue
2 stopsAmerican Airlines
37h 34mICN-PSC
$1,102
8/21Wed
2 stopsCathay Pacific
37h 45mPDX-ICN
9/11Wed
2 stopsCathay Pacific
24h 18mICN-PDX
$1,118
8/26Mon
2 stopsCathay Pacific
23h 15mPDX-ICN
9/4Wed
2 stopsCathay Pacific
24h 18mICN-PDX
$1,136
8/14Wed
1 stopAir Canada
29h 10mPDX-ICN
11/18Mon
1 stopAir Canada
21h 01mICN-PDX
$1,147
8/18Sun
1 stopAir Canada
29h 10mPDX-ICN
9/9Mon
1 stopAir Canada
20h 12mICN-PDX
$1,211
8/21Wed
1 stopTurkish Airlines
31h 00mSEA-ICN
9/4Wed
1 stopTurkish Airlines
27h 10mICN-SEA
$1,274
7/1Mon
1 stopTurkish Airlines
31h 00mSEA-ICN
7/23Tue
1 stopTurkish Airlines
33h 25mICN-SEA
$1,275

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Recent one-way flight deals

9/4Wed
2 stops
41h 25mPDX-ICN
$485
8/27Tue
1 stopHawaiian Airlines
18h 30mPDX-ICN
$489
8/21Wed
2 stopsCathay Pacific
37h 45mPDX-ICN
$583
8/19Mon
2 stopsCathay Pacific
35h 25mPDX-ICN
$598
8/19Mon
1 stopEVA Air
25h 05mSEA-GMP
$611
8/22Thu
1 stopEVA Air
19h 40mSEA-GMP
$649
8/18Sun
1 stopAir Canada
29h 10mPDX-ICN
$649
8/25Sun
1 stopAir Canada
32h 40mPDX-ICN
$670
7/16Tue
1 stopAmerican Airlines
22h 16mPDX-ICN
$682
7/22Mon
2 stopsAmerican Airlines
32h 30mPDX-ICN
$702

Search by stops

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Search by price

Last minute flights from Washington to South Korea

Last minute flight, train and bus deals

5/26Sun
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/13Thu
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,276
5/25Sat
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/3Mon
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,286
5/28Tue
multi-stop
20h 50mPDX-ICN
6/3Mon
multi-stop
28h 45mICN-PDX
$1,305
5/26Sun
multi-stop
21h 40mSEA-ICN
5/30Thu
multi-stop
28h 39mICN-SEA
$1,313
5/27Mon
multi-stopJapan Airlines
33h 55mSEA-GMP
7/1Mon
multi-stopJapan Airlines
18h 40mGMP-SEA
$1,732
5/28Tue
multi-stopJapan Airlines
33h 55mSEA-GMP
6/11Tue
multi-stopJapan Airlines
31h 15mGMP-SEA
$1,741
5/27Mon
multi-stopCathay Pacific
34h 45mSEA-ICN
6/11Tue
multi-stopCathay Pacific
33h 05mICN-SEA
$1,760
5/25Sat
multi-stopCathay Pacific
26h 11mSEA-ICN
6/2Sun
multi-stopCathay Pacific
28h 42mICN-SEA
$1,786
5/27Mon
multi-stopQatar Airways
33h 05mSEA-ICN
6/30Sun
multi-stopQatar Airways
27h 10mICN-SEA
$1,793
5/27Mon
multi-stopQatar Airways
33h 05mSEA-ICN
6/10Mon
multi-stopQatar Airways
27h 10mICN-SEA
$1,854

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Flights to South Korea

Return flight deals:

South Korea - Washington

Cabin classes:

$1,697
$3,801
$1,990
$848