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Find cheap flights from Seoul Incheon Airport to Washington from $331

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon to Washington departing on 5/27. 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
dom. 6/9
dom. 6/16

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Best Washington Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seattle
Seattle1 stop$541
Spokane
Spokane2 stops$1,368
Portland
Portland1 stop$621

Good to know

Low season

November

High season

September

Cheapest flight

$331
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Seoul Incheon Airport to Seattle

FAQs - booking Washington flights

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

    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 Incheon to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington from Incheon 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 Incheon to Washington?

    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 Washington with an airline and back to Incheon with another airline.

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

    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 Washington from Incheon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Washington

  • Looking for a cheap flight? 25% of our users found tickets from Seoul Incheon Airport to the following destinations at these prices or less: Seattle $753 one-way - $1,092 round-trip
  • Morning departure is around 30% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Incheon to Washington

 
Need help choosing which airline to fly with from Incheon to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.5
Korean AirOverall score based on 1179 reviews
8.8Crew
8.6Boarding
8.2Entertainment
8.2Food
8.3Comfort
Airline reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

10.0 ExcellentAnonymous, Apr 2024ICN - SGN
Read more about Korean Air reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

Not very comfortable seated in the back plane due to turbulence

Everything about Korean air is great, hands down! Will always prefer this airline from other carriers.

Ford not that great the seat not to big for leg room like other airline

Crew was ok, but some passengers were a bit rude. Again, all outlets were not working, only the really slow charging usb plug on the entertainment system. Entertainment system was also bugged, some features just crash, the touch screen wasn't working and when trying to watch a movie the onscreen display kept flashing off and on making it very difficult to watch.

New plane. Perfect gluten free meal Very flawless procedures from check-in to the landing. Taking off on time and landing even earlier and the luggages are already there after shortest arrival report.

It was ok. Not good and not a bad experience

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

Not accommodating ground staff On board slow service Crew members not very friendly

Staff on board were good - food was fine tasted good - tv was old 1970ts in seat back but hey it was a 2 out flight so no drama

Cons: "No entertainment, no place to plug in devices, extremely uncomfortable. The worst part was the Dixie cup of water served. Really?!? A bottle or larger cup would have broke the bank? Was so thirsty by the time we landed even though I had the attendants bring me water three times."

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

Good flight. Fiod was ready a bit late hence a hurry to finish before landing. Excellent crew and service

Seating cramped; close to toilet, foul smelling and noisy, very unhygienic and disease risk Free and paid Wi-Fi NOT accessible at all - misleading advertising Very expensive sunglasses disappeared from back seat pouch. Coffee disgusting and cold

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

Wonderful service, planes and interior in great condition, very pleasant experience

Flying with Singapore airlines is always excelllent - the crew are lovely and the food too is great. It’s my number 1 airline

They were able to assist my elderly father and myself after not being able to check in to scoot. The counter service was phenomenal. They did what they could to get us on the next plane so we could catch our Connecting flight. Scoot closed early on us so we ended up missing our flight.

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

Transfer within the same terminal and lots of facilities at the airport.

At the boarding gate, Jeju airline accepted "carry on" bags for checking in for free due to the "limited cabin space". This is because most passengers were carrying multiple bags that exceed the size and weight limit for carry on items. Rather than inspecting carry-on bags at the counter and requiring excess bags to be checked in for a fee, they allowed freeloading at the boarding gate to to the detriment of those who paid the fee for checked bags. This is totally unfair.

As posred earlier the crew was very accommodating & professional. Thank You Allen

All though you can not help it the kids was loud and unruly, The crew was very accommodating and professional. Thank You Allen.

No priority counter check in for families with young children.

The flight was delayed from GUM to ICN, there was no notification on how delayed the flight would be. Although we received notice, there was no specified time given. The flight was also very uncomfortable.

Cons: "Sold me a ticket then cancelled 15 minutes later due to not having updated information from the airline on bookings."

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Pros: "We received great assistance at the check-in counter and were helped out even though we arrived late. The ground crew was actually great."
Cons: "We only got water. Felt like a bus ride. Minimum comfort but fair for the price."

Book cheap flights from Incheon to Washington

Recent round-trip flight deals

5/22mié.
1 stopAmerican Airlines
22h 34mICN-SEA
6/25mar.
1 stopAmerican Airlines
22h 01mSEA-ICN
$541
6/4mar.
1 stopAmerican Airlines
19h 39mICN-SEA
6/17lun.
1 stopAmerican Airlines
22h 55mSEA-ICN
$542
10/24jue.
1 stopUnited Airlines
21h 10mICN-SEA
10/28lun.
1 stopUnited Airlines
16h 40mSEA-ICN
$861
9/23lun.
1 stopUnited Airlines
16h 16mICN-SEA
10/7lun.
2 stopsUnited Airlines
19h 22mSEA-ICN
$863
11/4lun.
nonstopAsiana Airlines
9h 45mICN-SEA
11/11lun.
nonstopAsiana Airlines
12h 00mSEA-ICN
$953
9/19jue.
nonstopAsiana Airlines
10h 30mICN-SEA
9/30lun.
nonstopAsiana Airlines
11h 25mSEA-ICN
$957
10/12sáb.
1 stopSingapore Airlines
39h 45mICN-SEA
10/20dom.
1 stopSingapore Airlines
37h 20mSEA-ICN
$1,021
11/1vie.
nonstopKorean Air
9h 55mICN-SEA
11/5mar.
nonstopKorean Air
11h 40mSEA-ICN
$1,031
10/9mié.
nonstopKorean Air
10h 05mICN-SEA
10/22mar.
nonstopKorean Air
11h 40mSEA-ICN
$1,033
9/20vie.
1 stopSingapore Airlines
24h 55mICN-SEA
9/25mié.
2 stopsSingapore Airlines
29h 40mSEA-ICN
$1,050

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Recent one-way flight deals

5/27lun.
1 stopAmerican Airlines
22h 34mICN-SEA
$331
9/24mar.
2 stopsAmerican Airlines
22h 34mICN-SEA
$343
5/27lun.
2 stopsAmerican Airlines
22h 50mICN-SEA
$345
5/22mié.
3 stops
45h 27mICN-SEA
$404
5/22mié.
3 stops
45h 52mICN-SEA
$443
5/28mar.
2 stopsUnited Airlines
35h 47mICN-GEG
$493
9/7sáb.
1 stopChina Airlines
15h 00mICN-SEA
$604
10/27dom.
1 stopChina Airlines
22h 40mICN-SEA
$607
5/15mié.
nonstopAsiana Airlines
10h 30mICN-SEA
$633
5/15mié.
nonstopAsiana Airlines
10h 30mICN-SEA
$635

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Last minute flights from Incheon to Washington

Last minute flight, train and bus deals

5/13lun.
multi-stopAmerican Airlines
19h 39mICN-SEA
5/13lun.
multi-stopAmerican Airlines
24h 05mSEA-ICN
$686
5/12dom.
multi-stopAmerican Airlines
22h 50mICN-SEA
5/13lun.
multi-stopAmerican Airlines
29h 31mSEA-ICN
$925
5/15mié.
nonstopAsiana Airlines
10h 30mICN-SEA
5/21mar.
multi-stopAsiana Airlines
16h 47mSEA-ICN
$1,082
5/15mié.
nonstopAsiana Airlines
10h 30mICN-SEA
5/21mar.
multi-stopAsiana Airlines
21h 40mSEA-ICN
$1,084
5/14mar.
nonstopKorean Air
10h 35mICN-SEA
5/15mié.
multi-stopKorean Air
17h 44mSEA-ICN
$1,235
5/14mar.
nonstopKorean Air
10h 35mICN-SEA
5/20lun.
multi-stopKorean Air
17h 44mSEA-ICN
$1,237
5/14mar.
nonstop
10h 30mICN-SEA
5/17vie.
multi-stop
18h 15mSEA-ICN
$1,359
5/11sáb.
multi-stop
16h 55mICN-SEA
5/16jue.
multi-stop
17h 50mSEA-ICN
$1,386
5/13lun.
multi-stopTurkish Airlines
46h 20mICN-SEA
5/18sáb.
multi-stopTurkish Airlines
31h 00mSEA-ICN
$1,611
5/13lun.
multi-stopTurkish Airlines
46h 20mICN-SEA
5/18sáb.
multi-stopTurkish Airlines
31h 00mSEA-ICN
$1,626

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Incheon - Washington Flights

Departure:

Seoul Incheon Airport (ICN)South Korea

Return flight deals:

Washington - Seoul Incheon Airport

Cabin classes:

$2,292
$3,815
$2,038
$846