$392 Find Cheap Flights from Washington to South Korea

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Useful Info

Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$392
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Seattle to Seoul Incheon Airport

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 from Washington to South Korea 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 from Washington to South Korea with an airline and back 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 from Washington to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in South Korea?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in South Korea is Incheon Intl Airport (ICN), with an average flight price of $535.

  • What is the cheapest day to fly to South Korea?

    Based on KAYAK data, the cheapest day to fly to South Korea is Wednesday where round-trip tickets can be as cheap as $886. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,034 on average.

  • What is the cheapest time of day to fly to South Korea?

    The cheapest time of day to fly to South Korea is generally at night, when round-trip flights cost $835 on average. Morning departures are around 35% cheaper than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,401.

  • What is the cheapest flight to South Korea?

    The cheapest ticket to South Korea from Washington found in the last 72 hours was to Incheon Intl Airport, at $663 round-trip. The most popular route is Seattle (SEA) to Incheon Intl Airport (ICN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $663.

  • What is the cheapest month to fly from Washington to South Korea?

    The cheapest month for flights from Washington to South Korea is February, when tickets cost $971 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,570 and $1,519 respectively.

  • How far in advance should I book a flight from Washington to South Korea?

    To get a below average price on the flight from Washington to South Korea, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

  • How long is the flight to South Korea?

    An average nonstop flight from Washington to South Korea takes 24h 13m, covering a distance of 5281 miles. The shortest route is Seattle (SEA) to Incheon Intl Airport (ICN) with an average flight time of 11h 20m.

  • What are the most popular destinations in South Korea?

    Based on KAYAK flight searches, the most popular destination is Busan (96% of total searches to South Korea). The next most popular destinations are Jeju City (3%) and Daegu (0%). Searches for flights to Wonju (0%) are also popular.

Book cheap flights from Washington to South Korea

Recent round-trip flight deals

9/25Thu
1 stopAir Canada
18h 35mSEA-ICN
10/16Thu
1 stopAir Canada
20h 31mICN-SEA
$739
9/25Thu
1 stopAir Canada
14h 05mSEA-ICN
10/16Thu
1 stopAir Canada
12h 31mICN-SEA
$776
9/25Thu
1 stop
14h 05mSEA-ICN
10/16Thu
2 stops
19h 41mICN-SEA
$779
9/1Mon
2 stops
18h 10mSEA-ICN
10/23Thu
1 stop
16h 51mICN-SEA
$784
10/1Wed
1 stopDelta
19h 00mPDX-ICN
10/17Fri
1 stopDelta
15h 53mICN-PDX
$850
10/1Wed
1 stopUnited Airlines
17h 30mPDX-ICN
10/22Wed
2 stopsUnited Airlines
21h 37mICN-PDX
$854
9/15Mon
1 stopAmerican Airlines
35h 48mPDX-ICN
10/15Wed
2 stopsAmerican Airlines
21h 48mICN-PDX
$884
10/19Sun
2 stopsUnited Airlines
36h 25mPDX-ICN
10/27Mon
1 stopUnited Airlines
23h 45mICN-PDX
$935
11/22Sat
1 stopDelta
18h 25mGEG-ICN
11/30Sun
1 stopDelta
21h 13mICN-GEG
$1,001
7/28Mon
1 stopAmerican Airlines
22h 31mPDX-ICN
9/4Thu
2 stopsAmerican Airlines
21h 46mICN-PDX
$1,025

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Recent one-way flight deals

9/20Sat
2 stops
22h 30mSEA-ICN
$392
9/4Thu
2 stops
22h 30mSEA-ICN
$393
11/4Tue
2 stopsJapan Airlines
22h 20mPDX-GMP
$415
9/18Thu
1 stopUnited Airlines
18h 40mPDX-ICN
$430
11/3Mon
2 stopsJapan Airlines
22h 20mPDX-GMP
$433
11/14Fri
1 stopDelta
14h 20mPDX-ICN
$433
9/20Sat
3 stopsUnited Airlines
38h 30mPDX-ICN
$439
9/27Sat
1 stopWestJet
19h 40mSEA-ICN
$448
9/9Tue
1 stopWestJet
36h 40mSEA-ICN
$456
7/6Sun
nonstopDelta
11h 45mSEA-ICN
$628

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Last minute flights from Washington to South Korea

Last minute flight, train and bus deals

6/23Mon
multi-stop
14h 05mSEA-ICN
7/29Tue
multi-stop
19h 36mICN-SEA
$930
6/23Mon
multi-stopAir Canada
18h 35mSEA-ICN
7/29Tue
multi-stopAir Canada
20h 31mICN-SEA
$1,007
6/21Sat
multi-stopChina Eastern
37h 50mSEA-ICN
6/30Mon
multi-stopChina Eastern
40h 40mICN-SEA
$1,261
6/21Sat
multi-stopTurkish Airlines
37h 10mSEA-ICN
6/23Mon
multi-stopTurkish Airlines
27h 15mICN-SEA
$1,267
6/21Sat
multi-stopUnited Airlines
37h 15mSEA-ICN
6/23Mon
multi-stopUnited Airlines
34h 35mICN-SEA
$1,269
6/23Mon
multi-stopTurkish Airlines
30h 30mSEA-ICN
7/18Fri
multi-stopTurkish Airlines
27h 15mICN-SEA
$1,284
6/21Sat
multi-stopKorean Air
18h 41mSEA-ICN
8/4Mon
nonstopKorean Air
10h 10mICN-SEA
$1,316
6/23Mon
multi-stopKorean Air
19h 41mSEA-ICN
7/17Thu
nonstopKorean Air
10h 10mICN-SEA
$1,317
6/23Mon
multi-stopChina Eastern
36h 35mSEA-ICN
7/21Mon
multi-stopChina Eastern
40h 31mICN-SEA
$1,459
6/21Sat
multi-stopUnited Airlines
39h 45mSEA-ICN
8/1Fri
multi-stopUnited Airlines
24h 09mICN-SEA
$1,465

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Everything you need to know for your flight to South Korea

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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