SEL - WAS

$389 Find Cheap Flights from Seoul to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to Washington, D.C. departing on 11/11. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seoul to Washington, D.C. (SEL-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seoul to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seoul to Washington, D.C.

Tue, Nov 4 - Fri, Nov 7
Air Canada Logo
6:55 pm - 8:54 pmICN-IAD
39h 59m2 stops
Air Canada Logo
9:45 am - 5:10 pmIAD-ICN
41h 25m2 stops
$438Air Canada
Find Deal
Fri, Nov 14 - Fri, Nov 21
Air Canada Logo
6:55 pm - 8:54 pmICN-IAD
39h 59m2 stops
Air Canada Logo
9:45 am - 5:10 pmIAD-ICN
41h 25m2 stops
$440Air Canada
Find Deal
Mon, Oct 27 - Mon, Nov 3
Air Canada Logo
5:55 pm - 8:59 pmICN-IAD
40h 04m2 stops
Air Canada Logo
9:45 am - 5:10 pmIAD-ICN
41h 25m2 stops
$442Air Canada
Find Deal
Mon, Oct 27 - Mon, Nov 3
American Airlines Logo
5:55 pm - 9:55 amICN-IAD
29h 00m2 stops
American Airlines Logo
5:27 pm - 4:45 pmIAD-ICN
33h 18m1 stop
$478American Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
6:50 pm - 6:59 amICN-DCA
26h 09m2 stops
American Airlines Logo
7:45 pm - 4:45 pmDCA-ICN
31h 00m2 stops
$478American Airlines
Find Deal
Mon, Dec 15 - Sun, Feb 15
United Airlines Logo
12:45 pm - 5:16 pmICN-BWI
18h 31m1 stop
United Airlines Logo
12:37 pm - 5:40 amBWI-ICN
27h 03m2 stops
$492United Airlines
Find Deal
Mon, Dec 15 - Fri, Feb 13
United Airlines Logo
12:45 pm - 7:26 pmICN-IAD
20h 41m1 stop
United Airlines Logo
10:10 pm - 4:15 pmIAD-ICN
28h 05m1 stop
$492United Airlines
Find Deal
Mon, Feb 2 - Fri, Feb 20
Alaska Airlines Logo
8:35 pm - 4:26 pmICN-IAD
33h 51m1 stop
Alaska Airlines Logo
6:55 pm - 6:35 pmIAD-ICN
33h 40m1 stop
$598Alaska Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 18
Delta Logo
7:30 pm - 11:49 pmICN-BWI
17h 19m1 stop
Delta Logo
6:00 am - 3:30 pmBWI-ICN
19h 30m1 stop
$621Delta
Find Deal
Fri, Oct 31 - Tue, Nov 18
Delta Logo
7:30 pm - 11:49 pmICN-BWI
17h 19m1 stop
Delta Logo
6:00 am - 3:30 pmBWI-ICN
19h 30m1 stop
$622Delta
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
At ICN, allow an hour for security and passport control.
From IAD, the Silver Line Metro reaches downtown in 50 mins.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air Canada
Cheapest • from $438 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ICN-IAD
Cheapest
ICN-IAD
Most popular
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 6% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$438
Overall average: $1,144
Air Canada
Tue 11/4Fri 11/7
ICN - IAD • 2 stops
Cheapest non-stop
$1,213
Typical prices: $1,320-$1,647
Korean Air
Fri 11/7Thu 11/20
ICN - IAD • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Booking Insights

KAYAK's insights & trends for Seoul to Washington, D.C. flights

Get data-powered insights and trends into flights from Seoul to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seoul to Washington, D.C.?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seoul to Washington, D.C. departing in November.

What is the cheapest Seoul to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Seoul to Washington, D.C. costs $1,097 on the route between Incheon Intl Airport (ICN) and Washington, D.C. Dulles Intl Airport (IAD). It is also the most popular route.

What’s the cheapest day of the week to fly from Seoul to Washington, D.C.?

The average price of all round-trip flights from Seoul to Washington, D.C. clicked on KAYAK for each day over the last 12 months.

When flying from Seoul to Washington, D.C., you should consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Seoul, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

How far in advance should I book a flight from Seoul to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seoul to Washington, D.C., you should book around 5 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Seoul to Washington, D.C.

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
ICN

At ICN, give yourself at least an hour to clear security and passport control due to busy lines, especially during peak travel times.

Read more about ICNby Robert Schrader
IAD

From IAD, take the Silver Line Metro to reach downtown D.C. in about 50 minutes, offering a convenient and cost-effective option.

Read more about IADby Stefanie Waldek
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know

Low seasonSeptember
Cheapest flight$389
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Seoul Incheon Airport to Baltimore

When to book flights from Seoul to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Seoul to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seoul to Washington, D.C.

  • What is the cheapest flight from Seoul to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Seoul to Washington, D.C. was $389 for a one-way ticket and $438 for a round-trip.

  • Do I need a passport to fly between Seoul and Washington, D.C.?

    A passport is required to fly from Seoul to Washington, D.C..

  • Which airlines offer Wi-Fi service onboard planes from Seoul to Washington, D.C.?

    Delta, and Asiana Airlines offer inflight Wi-Fi service on the Seoul to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Seoul to Washington, D.C.?

    The Boeing 777-300ER is the aircraft model that flies most regularly on the Seoul to Washington, D.C. flight route.

  • Which airline alliances offer flights from Seoul to Washington, D.C.?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Seoul and Washington, D.C., with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Seoul to Washington, D.C.?

    There are nonstop flights from Seoul to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from Seoul to Washington, D.C., Korean Air or Delta?

    The two airlines most popular with KAYAK users for flights from Seoul to Washington, D.C. are Korean Air and Delta. With an average price for the route of $1,476 and an overall rating of 8.4, Korean Air is the most popular choice. Delta is also a great choice for the route, with an average price of $1,344 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seoul to Washington, D.C.?

    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 Seoul to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Seoul 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 Seoul to Washington, D.C.?

    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, D.C. with an airline and back to Seoul with another airline.

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

    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, D.C. from Seoul up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seoul to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $1,096 or less one-way and $1,333 or less round-trip.

Reviews of the top 5 airlines serving from Seoul to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Seoul to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seoul to Washington, D.C.? 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.
8.4
Korean AirOverall score based on 1149 reviews
8.1Food
8.5Boarding
8.2Entertainment
8.3Comfort
8.7Crew
Airline reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

Better screens, it would have been nice to have more comfortable seats.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

taking our carryon and forcing us to check it through

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

Everything you need to know for your flight from Seoul to Washington, D.C.

Cabin class types available on flights from Seoul to Washington, D.C.

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.