IAD - SEL

$496 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Seoul departing on 5/14. 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 Dulles Intl to Seoul (IAD-SEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 Dulles Intl to Seoul

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl 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
6:45 pm - 6:45 pmIAD-ICN
35h 00m1 stop
8:45 pm - 5:54 pmICN-IAD
34h 09m1 stop
$994WestJet
Find Deal
Wed, May 14 - Tue, Jun 10
7:00 am - 7:50 pmIAD-ICN
23h 50m1 stop
5:30 pm - 5:40 amICN-IAD
25h 10m1 stop
$1,062
Find Deal
Mon, Mar 31 - Mon, Apr 14
10:25 pm - 9:05 amIAD-ICN
21h 40m1 stop
5:45 pm - 9:15 pmICN-IAD
40h 30m2 stops
$1,098
Find Deal
Mon, Mar 24 - Tue, Apr 15
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
10:25 am - 5:30 pmIAD-ICN
18h 05m1 stop
5:45 pm - 4:27 pmICN-IAD
35h 42m1 stop
$1,157Air Canada
Find Deal
Wed, Jul 9 - Mon, Jul 21
5:38 pm - 9:10 pmIAD-ICN
38h 32m2 stops
10:10 am - 4:14 pmICN-IAD
43h 04m2 stops
$1,168Cathay Pacific
Find Deal
Tue, Apr 22 - Tue, May 20
5:58 pm - 12:40 pmIAD-ICN
29h 42m2 stops
10:10 am - 4:00 pmICN-IAD
42h 50m2 stops
$1,218Cathay Pacific
Find Deal
Mon, Mar 31 - Mon, Apr 28
2:10 pm - 6:45 pmIAD-ICN
39h 35m2 stops
8:45 pm - 5:54 pmICN-IAD
34h 09m1 stop
$1,304WestJet
Find Deal
Sat, May 17 - Sun, Jun 8

Expert advice for your flight from Dulles Intl to Seoul

Our travel pros reveal their best tips for your Dulles Intl to Seoul journey.
Airports
IAD

Dulles offers the AeroTrain and mobile lounges for quick terminal transfers. Plan your route using an airport map for a smoother departure experience.

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 and traffic delays.

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 Dulles Intl to Seoul - Travel Insights & Trends

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

What is the cheapest Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Seoul.
Our data shows that the cheapest route for a return flight from Washington, D.C. Dulles Intl Airport to Seoul cost $1,141 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 Dulles Airport to Seoul?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Seoul clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Seoul on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Washington Dulles Airport to Seoul. For your return ticket, we recommend flying on a Friday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Seoul is November, where tickets cost $903 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $2,299 and $2,229 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport 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 $3,170 on average.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport 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

August

High season

October

Cheapest flight

$496
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Washington Dulles Airport to Seoul Incheon Airport

When to book flights from Dulles Intl to Seoul

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to Seoul flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Seoul was $496 for a one-way ticket and $785 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Seoul?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Seoul.

  • Which airports will I be using when flying from Washington Dulles Airport to Seoul?

    When flying out of Washington Dulles Airport you will be using 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 Dulles Airport to Seoul?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Seoul?

    SkyTeam is the only airline alliance operating flights between Washington Dulles Airport and Seoul.

  • On which days can I fly direct from Washington Dulles Airport to Seoul?

    There are nonstop flights from Washington Dulles Airport to Seoul on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Seoul, Turkish Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seoul are Turkish Airlines and Air Canada. With an average price for the route of $1,050 and an overall rating of 7.3, Turkish Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $1,162 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Seoul.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport 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. Dulles Intl Airport 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.

Top 5 airlines serving from Dulles Intl 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 Dulles Intl 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
8.1Food
8.7Crew
8.3Comfort
8.2Entertainment
8.5Boarding
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.

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

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

Terrible boarding process, no proper line maintained even for business class, crews are not very attentive, business class food quality / variety / quantity have gone down, everything has become cheap.

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 Dulles Intl to Seoul

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