WAS - SEL

$485 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 3/29. 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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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 Flight Deals from Washington, D.C. to Seoul (WAS-SEL)

 
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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Washington, D.C. to Seoul.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:25 pm - 6:20 pmIAD-ICN
30h 55m1 stop
12:10 am - 7:45 pmICN-IAD
32h 35m1 stop
$785Turkish Airlines
Find Deal
Wed, Mar 19 - Sat, Mar 29
3:00 pm - 9:05 amIAD-ICN
29h 05m1 stop
12:10 am - 1:15 pmICN-IAD
26h 05m1 stop
$791Turkish Airlines
Find Deal
Thu, Mar 13 - Mon, Mar 17
3:00 pm - 9:05 amIAD-ICN
29h 05m1 stop
10:20 am - 10:45 amICN-IAD
37h 25m1 stop
$800Turkish Airlines
Find Deal
Wed, Mar 19 - Wed, Apr 9
4:35 pm - 4:05 pmDCA-ICN
34h 30m2 stops
6:00 pm - 10:18 amICN-DCA
29h 18m1 stop
$1,151Air Canada
Find Deal
Mon, Jul 7 - Tue, Jul 22
5:44 pm - 4:05 pmIAD-ICN
33h 21m2 stops
5:45 pm - 7:44 amICN-IAD
26h 59m2 stops
$1,151Air Canada
Find Deal
Wed, May 7 - Thu, May 22
5:00 am - 3:30 pmDCA-ICN
21h 30m1 stop
5:25 pm - 9:19 amICN-DCA
28h 54m1 stop
$1,453American Airlines
Find Deal
Mon, Mar 31 - Mon, Apr 14
5:00 am - 3:30 pmDCA-ICN
21h 30m1 stop
5:25 pm - 12:55 amICN-DCA
20h 30m1 stop
$1,463American Airlines
Find Deal
Tue, Apr 1 - Tue, Apr 8
6:55 pm - 4:00 amBWI-ICN
20h 05m1 stop
6:40 pm - 11:59 pmICN-BWI
18h 19m1 stop
$1,524Delta
Find Deal
Tue, Apr 1 - Tue, Apr 22
6:00 am - 5:20 pmBWI-ICN
22h 20m1 stop
6:50 pm - 9:12 amICN-BWI
27h 22m1 stop
$1,574Delta
Find Deal
Sun, Mar 30 - Sat, May 3
6:00 am - 4:25 pmBWI-ICN
21h 25m1 stop
6:50 pm - 12:36 amICN-BWI
18h 46m1 stop
$1,709Korean Air
Find Deal
Thu, Apr 3 - Sun, Apr 13

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

Our travel pros reveal their best tips for your Washington, D.C. to Seoul 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

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.

Flights from Washington, D.C. to Seoul - Travel Insights & Trends

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 $1,159 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 $1,141.

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 Friday, 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 July, where the average cost of round-trip tickets is $1,855 and $1,802 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 $3,202 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 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$485
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Reagan Washington National Airport 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 $485 for a one-way ticket and $785 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 $1,834 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 $1,737 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 $672 or less one-way and $1,315 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 1035 reviews
8.3Comfort
8.1Food
8.5Boarding
8.7Crew
8.2Entertainment
Airline reviews

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

10.0 ExcellentJohn, Feb 2025MNL - ICN
Read more Korean Air reviews

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 !!!

Absolutely wonderful,love the big clean plane specially the good food.

Was an easy and great flight. On time. Food was tasty and the only complaint I have is something no one could do anything about. Seems like there’s a lot of ill people in Korea these days and the flight was full of people coughing.

I’ve always been impressed by the cleanliness of the toilets or, at least, its frequent monitoring, cleaning, and toiletry replacements. The in-flight service by flight attendants is superb.

Glad you had Bibimbap which tasted much better than mesh potato or pasta.

Absolutely horrible. The fight member crew or not very friendly and the food was horrible.

Delta is a premier airline so my expectations are most always met.

Seats are much much more comfortable than United, which is what I usually fly

Zero updates from the pilots for 30 minutes in the tarmac

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Kind staff. Snacks are small but that’s the new normal.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Liked nothing. As per previous segment it was delay delay delay.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

EVen warmer in the plane it think it was 24+ degrees

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Standard. No different than a discount carrier on a short trip.

At least it was a short flight. Greyhound with wings.

They have lost any customer service care and support. Terrible airline now and been for awhile.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The flight was delayed leaving Miami. When we arrived in Charlotte, we were unable to park at our scheduled gate. We had to wait another 30-45 minutes before we could park at a different gate. All in all, we were delayed by almost two hours arriving in Charlotte.

Bigger seats. Board back to front! Disembark front to back!

All was good with comfort and ease of boarding. There was confusion from what gate to board at. Meant moving a long distance but I allowed plenty of time for this.

Terrible experience. Flight was delayed then canceled. They had no clue how to rebook us. Had to wait in line to take to a gate agent for 2 hours. Absolutely terrible from start to finish.

We have to wait long time at airport. Plane left from 8 pm to 1:35 am.Long time waiting

My oroginal flight was delayed several times. Finally the flight was cancelled. I had to spend additional money and book another flight with Porter at another airport Fort Lauderdale International Airport or I would miss the event I had in Toronto. I did not board the rescheduled flight which was after my event.

The staff could have been friendlier. And Having the flight on time would have been much more convenient.

Excellent We were very empress with this Airline as once our flight was canceled, they immediately rebooked our flight and provided accommodations for hotels….Thank you!

Awful. Flight screen didn’t work. Seat didn’t recline.

I liked nothing about this flight nor the incredible lack of service and communication on this flight from the Captain to every staff member. Arrogant, entitled and lacking any kind of basic customer service

Everything should be better, terrible flight and airport service. Delayed for 6 hours, flying around for 1 hr, and keeping us on a plane for another 2,5 -3hrs.

The plane was dirty. It appeared that Air Canada did not know vacuum cleaners had been invented. Second, the overhead bins were about 1/3 or 1/2 the size of "normal" bins. That was a problem. The worst was disembarking in the weather in Montreal. I have cold agglutinin disease. That means my red blood cells clump together and then are destroyed when exposed, even by breathing to cold air. A few seconds of exposure can be dangerous. I am now experiencing extreme fatigue caused by the anemia from that experience. I should have had more assistance descending a narrow ramp and then traversing, even if only a few feet, of icy pavement. The blowing snow penetrated my facial covering and has caused problems.

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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