WAS - SEL

$449 Find Cheap Flights from Washington, D.C. to Seoul

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, D.C. to Seoul departing on 5/28. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seoul.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Seoul.
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Cheap Flights from Washington, D.C. to Seoul

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Seoul 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Seoul.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Air China Logo
11:00 pm - 4:35 pmIAD-ICN
28h 35m1 stop
Air China Logo
10:50 am - 7:30 pmICN-IAD
21h 40m1 stop
$607Air China
Find Deal
Sat, May 3 - Fri, Jun 13
Air China Logo
11:00 pm - 4:35 pmIAD-ICN
28h 35m1 stop
Air China Logo
5:50 pm - 7:30 pmICN-IAD
38h 40m1 stop
$623Air China
Find Deal
Sat, May 3 - Thu, May 29
Turkish Airlines Logo
1:30 pm - 5:40 pmIAD-ICN
39h 10m1 stop
Turkish Airlines Logo
11:20 pm - 11:45 amICN-IAD
25h 25m1 stop
$901Turkish Airlines
Find Deal
Tue, May 13 - Tue, Jun 3
Turkish Airlines Logo
9:40 pm - 5:40 pmIAD-ICN
31h 00m1 stop
Turkish Airlines Logo
11:20 pm - 11:45 amICN-IAD
25h 25m1 stop
$902Turkish Airlines
Find Deal
Tue, Sep 23 - Tue, Oct 21
United Airlines Logo
6:45 pm - 4:20 amBWI-ICN
20h 35m1 stop
United Airlines Logo
11:30 am - 5:32 pmICN-BWI
19h 02m1 stop
$1,178United Airlines
Find Deal
Mon, Aug 25 - Thu, Sep 11
United Airlines Logo
1:05 pm - 4:20 amBWI-ICN
26h 15m2 stops
United Airlines Logo
4:50 pm - 5:38 amICN-BWI
25h 48m1 stop
$1,182United Airlines
Find Deal
Mon, Aug 25 - Thu, Sep 11
Air Canada Logo
4:35 pm - 4:20 pmDCA-ICN
34h 45m1 stop
Air Canada Logo
7:05 pm - 10:34 pmICN-DCA
16h 29m1 stop
$1,406Air Canada
Find Deal
Mon, Oct 13 - Mon, Oct 20
Air Canada Logo
4:35 pm - 4:20 pmDCA-ICN
34h 45m1 stop
Air Canada Logo
5:45 pm - 10:20 amICN-DCA
29h 35m2 stops
$1,411Air Canada
Find Deal
Mon, Oct 13 - Mon, Oct 20
American Airlines Logo
6:54 am - 3:30 pmDCA-ICN
19h 36m1 stop
American Airlines Logo
5:25 pm - 7:24 amICN-DCA
26h 59m2 stops
$1,456American Airlines
Find Deal
Tue, Sep 2 - Thu, Sep 18
American Airlines Logo
6:36 am - 3:30 pmDCA-ICN
19h 54m1 stop
American Airlines Logo
6:50 pm - 12:40 amICN-DCA
19h 50m1 stop
$1,463American Airlines
Find Deal
Thu, Oct 9 - Sun, Nov 2

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

 
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
IAD

Dulles offers a variety of lounges, including United's Polaris Lounge for business-class passengers, enhancing comfort before long flights.

Read more about IADby Stefanie Waldek
ICN

Use the AREX Express train for a quick 40-minute ride from ICN to Seoul Station, avoiding costly taxis.

Read more about ICNby Robert Schrader
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

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

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

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. to Seoul.
Our data shows that the cheapest route for a return flight from Washington, D.C. to Seoul cost $1,024 and was between Washington, D.C. Dulles Intl Airport (IAD) and Incheon Intl Airport (ICN). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $1,024.

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

The average price of all round-trip flights from Washington, D.C. to Seoul clicked on KAYAK for each day over the last 12 months.
For Washington, D.C. to Seoul, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul back to Washington, D.C., the best deals are generally found on Monday, with Saturday being the most expensive.

What is the cheapest month to fly from Washington, D.C. to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Seoul, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. to Seoul is January, where tickets cost $959 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,854 and $1,737 respectively.

Can I save money by flying with a layover from Washington, D.C. to Seoul?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $4,366 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Seoul, 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 Washington, D.C. to Seoul, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

January

High season

April

Cheapest flight

$449
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Baltimore to Seoul Incheon Airport

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Seoul 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 Washington, D.C. to Seoul

  • What documentation do I need to fly from Washington, D.C. (IAD) to Seoul (ICN)?

    The most crucial document you will need is a valid passport. Your passport should be valid for at least six months beyond your intended stay in South Korea. South Korea has visa-free arrangements with many countries, including the United States. U.S. citizens visiting South Korea for tourism or business purposes are generally allowed to stay for up to 90 days without a visa.

  • Which airlines flying from Washington, D.C. (IAD) to Seoul (ICN) consider dietary needs?

    Korean Air offers special meal options such as vegetarian, vegan, gluten-free, and kosher. United Airlines also offer a range of special meals, including vegetarian, vegan, gluten-free, lactose-free, and diabetic-friendly options. Passengers can request these special meals in advance during the booking process or by contacting the airline directly.

  • Can I upgrade to first class on Japan Airlines for my flight from Washington D.C. to Seoul?

    JAL has a loyalty program called JAL Mileage Bank, where members can earn miles and use them to upgrade their seats, subject to availability and specific rules and conditions. Additionally, JAL offers the option of purchasing an upgrade to first class using cash. Depending on availability, this can be done at the time of booking or during check-in.

  • How can I get downtown from Incheon International Airport (ICN)?

    One popular method is to take the Airport Railroad Express (AREX), which provides both an Express Train and an All-Stop Train. The Express Train offers a non-stop journey to Seoul Station, a central transportation hub, in about 43 minutes. The All-Stop Train makes multiple stops along the way, taking approximately 53 minutes to reach Seoul Station. Both options offer plenty of seating and designated spaces for luggage storage.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Seoul was $449 for a one-way ticket and $607 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Seoul?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at one of these airports: Seoul Gimpo Intl or Incheon Intl.

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

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

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

    SkyTeam is the only airline alliance operating flights between Washington, D.C. and Seoul.

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seoul are Korean Air and Delta. With an average price for the route of $1,800 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 $1,609 and an overall rating of 8.0.

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

    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, D.C. to Seoul.

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

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

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

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

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

See more FAQs

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $653 or less one-way and $1,337 or less round-trip.
  • If you want a place to relax before your trip from Washington D.C. to Seoul (ICN), Dulles Airport (IAD) features the Air France-KLM Lounge in Concourse A. This lounge is open to Air France and KLM passengers and SkyTeam Elite Plus members up to three hours before departure. The lounge offers pre-flight dining, power outlets and USB ports, showers, and a work area.
  • Can a minor travel unaccompanied from Washington, D.C., to Seoul? ANA Airlines has a service called ANA Junior Pilot that is mandatory for children between the ages of 5 and 11 years traveling alone. The guardian needs to provide the child’s passport, completed consent forms, and contact details. The service ensures that staff assist the child from check-in, during the flight, and upon arrival at the destination.
  • SkyTeam Alliance is a popular choice if you are looking for flight alliances when traveling from Washington D.C. (IAD) to Seoul (ICN). With Airlines such as Korean Air and Delta Air Lines, you can access loyalty programs and earn redeemable miles, seamless travel for those in maritime and offshore industries, and flexible flight schedules.
  • You will most likely have layovers in Boston Edward L Logan International, John F Kennedy International, and Tokyo International Airport if you are traveling with All Nippon Airways (ANA) or Japan Airlines (JAL). Other Airlines, such as Cathay Pacific and United Airlines, may connect through Hong Kong.
  • If you are committed to sustainability, various airline options exist from Washington to Seoul. ANA has placed a strong emphasis on sustainability, aiming to be one of the world’s leading eco-friendly airlines. They have implemented measures to reduce CO2 emissions, such as fleet modernization, operational efficiency improvements, and the use of sustainable aviation fuel. ANA also actively promotes recycling and waste reduction.
See more tips

Top 5 airlines serving from Washington, D.C. to Seoul

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Seoul. 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 Washington, D.C. to Seoul? 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 1064 reviews
8.5Boarding
8.1Food
8.2Entertainment
8.3Comfort
8.7Crew
Airline reviews

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

8.0 ExcellentAnonymous, Apr 2025ATL - ICN
Read more Korean Air reviews

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

long flights are difficult but the crew and amenities made it a very good experience

Always have great flight experience on Korean Air. Glad to have been able to book this on Kayak/Under Pricer this year!!

An International flight from Cebu to Incheon was delayed the night before without a proper explanation. Same thing happened from Incheon to Cebu in the first leg. I will not fly Korean again. And I will ensure Delta their US partner hears about it. This is a routine by Korean to delay flights from and to Cebu via Incheon.

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

The food is always good and that flight was particularly good.

Unlimited drinks and snacks on this long flight. Very courteous Korean staff !!!

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Professional & courteous cabin crew. Food was very good even in economy class

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

British Airways staff are very polite and willing to help.

Any sort of gluten free snack option would be nice

They lost my luggage and it didn’t get delivered until the next day.

Would have thought that they would gas up plane before everyone got on board

3 hours late. Not even water offered on a 2.25 hour flight.

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

The boarding was relatively quick, the crew welcoming and flight uneventful. The omission of meals on all airlines is unacceptable especially when the flight is during a mealtime such as this one, (lunchtime), is unacceptable.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

Everything was made rather simple, so I appreciate that. All the people I dealt with from entering the airport in Jacksonville to my lonnnnnnng walk to my next gate in Chicago were excellent and very helpful.

No Charging ports for personal electronics, which were required to use wifi entertainment.

Crammed in like cattle waited 30 mins for late connecting flight (flight didn’t wait for me for me when I missed my connection at 2 different airports on outward journey)

Rushed, the boarding was a great deal like a Chinese fire drill.

Staff was friendly helpful also good timing I rate it a 10 out of 10

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

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

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

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