IAD - SEL

$565 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 7/6. 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, 0 bags

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.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Everything you should know

Cheapest round-trip
$1,084
Typical prices: $1,800-$1,101
Turkish Airlines
Mon 10/26Fri 11/13
IAD - ICN • 1 stop
Cheapest non-stop
$1,201
Typical prices: $2,086-$1,186
AIR PREMIA
Mon 5/4Sun 5/10
IAD - ICN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Dulles offers the AeroTrain for quick terminal transfers.
Use the AREX Express train for a fast trip to Seoul.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $1,084 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $197 (round-trip)
Shortest trip • 8h 07m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 57% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Seoul!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Seoul

Mon, Oct 26 - Fri, Nov 13
Turkish Airlines Logo
2:30 pm - 6:20 pm
IAD
-
ICN
38h 50m
1 stop
Turkish Airlines Logo
10:45 am - 11:45 am
ICN
-
IAD
39h 00m
1 stop
$1,084Turkish Airlines
Mon, Oct 26 - Thu, Nov 12
Turkish Airlines Logo
2:30 pm - 6:20 pm
IAD
-
ICN
38h 50m
1 stop
Turkish Airlines Logo
12:10 am - 11:45 am
ICN
-
IAD
25h 35m
1 stop
$1,107Turkish Airlines
Wed, Sep 16 - Wed, Oct 21
EVA Air Logo
1:15 am - 6:45 pm
IAD
-
ICN
28h 30m
1 stop
EVA Air Logo
12:00 pm - 10:00 pm
ICN
-
IAD
23h 00m
1 stop
$1,112EVA Air
Mon, Oct 26 - Thu, Nov 12
Turkish Airlines Logo
2:30 pm - 9:05 am
IAD
-
ICN
29h 35m
1 stop
Turkish Airlines Logo
12:10 am - 11:45 am
ICN
-
IAD
25h 35m
1 stop
$1,116Turkish Airlines
Mon, Sep 28 - Wed, Oct 28
EVA Air Logo
1:15 am - 6:45 pm
IAD
-
ICN
28h 30m
1 stop
EVA Air Logo
11:40 am - 9:55 pm
ICN
-
IAD
23h 15m
1 stop
$1,139EVA Air
Sun, May 3 - Sat, May 9
Japan Airlines Logo
7:10 am - 10:40 am
IAD
-
GMP
38h 30m
2 stops
Japan Airlines Logo
7:15 pm - 5:50 am
GMP
-
IAD
47h 35m
2 stops
$1,537Japan Airlines
Sun, Jul 19 - Thu, Jul 30
Japan Airlines Logo
6:03 am - 10:40 am
IAD
-
GMP
39h 37m
2 stops
Japan Airlines Logo
8:00 am - 6:39 am
GMP
-
IAD
35h 39m
2 stops
$1,852Japan Airlines
Mon, Jul 13 - Tue, Jul 21
Multiple Airlines Logo
6:23 am - 5:55 pm
IAD
-
GMP
22h 32m
2 stops
Multiple Airlines Logo
12:05 pm - 5:00 am
GMP
-
IAD
29h 55m
2 stops
$1,937Multiple Airlines
Wed, Jul 22 - Tue, Aug 4
ANA Logo
12:15 pm - 10:20 pm
IAD
-
GMP
21h 05m
1 stop
ANA Logo
7:55 pm - 3:50 pm
GMP
-
IAD
32h 55m
1 stop
$1,941ANA
Mon, Jul 20 - Sun, Jul 26
ANA Logo
3:30 pm - 11:05 am
IAD
-
GMP
30h 35m
2 stops
ANA Logo
7:55 pm - 10:05 am
GMP
-
IAD
27h 10m
1 stop
$1,972ANA
Booking Insights

KAYAK's insights & trends for Dulles Intl to Seoul flights

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.

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

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

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

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

The cheapest return flight from Washington, D.C. Dulles Intl Airport to Seoul costs $710 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Incheon Intl Airport (ICN). It is also the most popular route.

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 Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday 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 Thursdays 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 October, where tickets cost $197 (return) on average. On the other hand, the most expensive months are November and January, where the average cost of round-trip tickets is $902 and $816 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.

No, with an average price for the route of $1,666, prices are generally cheapest when you fly direct.

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 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Seoul

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

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.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

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.

Good to know

Low seasonJanuary
Cheapest flight$582
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 24% 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 $594 for a one-way ticket and $1,084 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 airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Seoul?

    Only American Airlines offers inflight Wi-Fi service on the Washington Dulles Airport to Seoul flight route.

  • 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?

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

  • 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, Korean Air or AIR PREMIA?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seoul are Korean Air and AIR PREMIA. With an average price for the route of $1,783 and an overall rating of 8.4, Korean Air is the most popular choice. AIR PREMIA is also a great choice for the route, with an average price of $1,220 and an overall rating of 8.1.

  • 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.

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 $559 or less one-way and $1,112 or less round-trip.

Reviews of the 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 1216 reviews
8.7Crew
8.1Food
8.2Entertainment
8.5Boarding
8.3Comfort
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Don't splurge for the Premium Wide Economy. They compare it to business class. This is not business class, and the seats are very uncomfortable.

For the second meal, the different food choices ran out both times so we were only offered one.

Seating was good in the economy with plenty of leg room. The seat cushions were a little firm though, especially for such a long flight. All meals were Korean as would be expected. The food was typical airline quality. Edible, but not something you would recommend to friends. Inflight entertainment was also all Korean but Korean tv and movies are made well and you can find something to watch. Just be prepared to read subtitles. Overall it was a good flight, especially for the price.

The crews were friendly, professional and courteous. Checking in was easy and smooth. The best part is, as we all know, the price.

The person in front of me was rude. He may came from some communism countries and don’t care of other people. No common manner and sense between human being.

Very nice staff, airplanes, and an excellent value in premium economy.

Food quality is poor. Flight attendants are very friendly and professional.

I flew on Zip Air on the way to Asia so I can compare. The two airlines are night and day. Air Premia was so amazing compared to Zip Air. I have flown Korean Air in the past and I honestly don’t know the difference between Air Premia and the “non-budget” airlines. My Air Premia flight provided me two bags whereas I had to pay for Zip Air. On my under 11 hour flight, we were provided two full meals! The flight attendants were so kind and polite.

For the price, the overall experience was what I expected. The prices were fair and competitive, the staff friendly and more responsive than other airlines, and seating spacious. The downside was food portion size, but I'll gladly pay a few dollars more for the hot noodles or other supplemental snacks, given the more affordable ticket prices. I don't mind the absence of Hollywood movie programming if that leads to inflated ticket prices. Wi-Fi worked well. In addition to spacious seating for the Wide Premiium, I'd suggest foot rests to complement the calf rests. There're problems with booking Air Premia tickets at the home website. The underlying app engine won't process non-Korean credit cards, which is a major oversight, probably hurting the company's bottom line. I can go to Kayak or a third-party website to book Air Premia tickets, but it's an awkward work-around when other airlines don't have to resort to this tactic.

As it's a budget airline it's pretty basic. But the quality of crew and plane is excellent.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The ground crew members at check in counter were courteous. The boarding was seamless. Flight departed as scheduled. Service on board was great

Very comfortable in business class. Excellent service. Good food. Smooth trip.

The seats seems abit small and the reclining is too much, the seat in front of me came back too much and made it uncomfortable for me.

As a first time flyer with Turkish Airlines. My experience was very good due to the factor that there were to many passengers on the my first flight compared to my connecting flight. However, I know that nothing is perfect and all companies are trying to accommodate their passengers to the best way possible. I will always say, a FEW INCHES will go LONG WAY. That's something all airliners should consider, and not only the money aspect!!! A long time commitment is better than one time service! Thank you

Flight was delayed. While standing at the gate, a note appeared on the sign saying the gate had changed to a gate far away. No member of the Turkish airlines team got on the microphone to instruct passengers to go to the other gate, to ignore the chiron, etc. Finally, the message disappeared. Eventually, the flight began to board. Very slowly. More slowly than I experience with other airlines. Though Istanbul may just be slow . . . In all other ways, great flight, great entertainment (top notch movies), great service, excellent food, comfortable lie-flat seat, dimmed lights, etc.

Staff at the airport wasn't helpful or friendly. Probably the worst airport experience I have ever had, going and coming. The staff on the plane was better. Still not super friendly or personable. However, they were not rude like airport staff. They ran out of certain menu items. Maybe could have been prepared better? Overall just ok.

It was a pleasant experience. In flight entertainment could have been better

The desk crew at the LAX crew could do better. A girl named Mahesi was very abrasive and unfriendly. She needs a better customer service uproar.

It was peaceful excited We enjoyed it always Turkish peaceful excited

Istanbul to Lahore flight was less than standard for international business class cabins. Seat did not were not flat and it did not operate easily. I had to push buttons hard repeatedly to operate the seat. I was in 5A seat

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

I checked a bag and there was only one agent to assist all customers with any issues.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Everything you need to know for your flight from Dulles Intl to Seoul

Information on your arrival and departure airports