IAD - ICN

$475 Find Cheap Flights from Washington Dulles Airport to Seoul Incheon Airport

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 Incheon departing on 4/25. 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 Incheon Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Incheon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Incheon.
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Everything you should know

Cheapest round-trip
$986
Typical prices: $1,717-$1,552
EVA Air
Fri 9/4Sat 9/12
IAD - ICN • 1 stop
Cheapest non-stop
$996
Typical prices: $2,060-$1,330
AIR PREMIA
Mon 4/27Wed 5/20
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 access.
Use the AREX Express for a fast ride to Seoul Station.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $986 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Korean Air and AIR PREMIA. Average duration is 15h 30m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 75% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $956 (round-trip)
Shortest trip • 16h 56m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 45% price drop
Most popular
Good to know
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+1
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We hope you love your trip to Incheon!
Flight Deals
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Flight Deals

Cheap Flights from Dulles Intl to Incheon (IAD-ICN)

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

Fri, Sep 4 - Sat, Sep 12
EVA Air Logo
1:15 am - 11:00 am
IAD
-
ICN
20h 45m
1 stop
EVA Air Logo
12:00 pm - 10:00 pm
ICN
-
IAD
23h 00m
1 stop
$986EVA Air
Mon, Apr 27 - Wed, May 20
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
$996AIR PREMIA
Sun, Aug 30 - Tue, Sep 8
Multiple Airlines Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
Multiple Airlines Logo
12:55 pm - 2:09 pm
ICN
-
IAD
38h 14m
3 stops
$998Multiple Airlines
Fri, Sep 4 - Wed, Sep 23
EVA Air Logo
1:15 am - 11:00 am
IAD
-
ICN
20h 45m
1 stop
EVA Air Logo
12:00 pm - 10:00 pm
ICN
-
IAD
23h 00m
1 stop
$999EVA Air
Wed, Apr 29 - Mon, May 4
AIR PREMIA Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
AIR PREMIA Logo
10:00 am - 10:50 am
ICN
-
IAD
13h 50mnonstop
$1,000AIR PREMIA
Wed, Aug 19 - Fri, Sep 11
EVA Air Logo
1:50 am - 11:00 am
IAD
-
ICN
20h 10m
1 stop
EVA Air Logo
12:00 pm - 10:00 pm
ICN
-
IAD
23h 00m
1 stop
$1,003EVA Air
Fri, May 15 - Wed, May 20
Multiple Airlines Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
Multiple Airlines Logo
7:10 am - 8:12 am
ICN
-
IAD
38h 02m
3 stops
$1,005Multiple Airlines
Mon, Apr 27 - Wed, May 20
Multiple Airlines Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
Multiple Airlines Logo
7:10 am - 8:12 am
ICN
-
IAD
38h 02m
3 stops
$1,006Multiple Airlines
Mon, Aug 10 - Tue, Sep 1
EVA Air Logo
1:50 am - 6:45 pm
IAD
-
ICN
27h 55m
1 stop
EVA Air Logo
7:45 pm - 10:00 pm
ICN
-
IAD
39h 15m
1 stop
$1,010EVA Air
Sun, May 17 - Wed, May 20
Multiple Airlines Logo
1:20 pm - 5:55 pm
IAD
-
ICN
15h 35mnonstop
Multiple Airlines Logo
9:45 am - 8:12 am
ICN
-
IAD
35h 27m
3 stops
$1,012Multiple Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Dulles Intl to Incheon 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 Incheon Intl Airport?

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 Incheon Intl Airport departing in September.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Seoul Incheon Airport?

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

For Washington Dulles Airport to Seoul Incheon Airport, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul Incheon Airport back to Washington Dulles Airport, the best deals are generally found on Sunday, with Thursday being the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

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 Incheon Intl Airport, 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 Incheon Intl Airport is April, where tickets cost $907 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,235 and $1,919 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?

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 $1,269, 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 Incheon Intl Airport?

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 Incheon Intl Airport, 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 Incheon Intl Airport, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Incheon

 
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$475
Best time to beat the crowds but there is an average 3% 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 Incheon

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

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport was $475 for a one-way ticket and $986 for a round-trip.

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

    Yes

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

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Seoul Incheon Airport, also known as Incheon Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Seoul Incheon Airport?

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

  • Which aircraft models fly most regularly from Washington Dulles Airport to Seoul Incheon Airport?

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

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

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

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

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

  • Which is the best airline for flights from Washington, D.C. to Incheon, Korean Air or AIR PREMIA?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Incheon are Korean Air and AIR PREMIA. With an average price for the route of $1,896 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 $1,261 and an overall rating of 8.2.

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

    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 Incheon Airport.

  • 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 Incheon Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport 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 Incheon Airport?

    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 Incheon Airport with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and ICN can sometimes prove cheaper using this method.

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

    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 Incheon Airport 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 Incheon Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $415 or less one-way and $612 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Seoul Incheon Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Incheon Intl.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Incheon Intl

Monday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Thursday

Korean Air

Korean Air

Friday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Saturday

Korean Air

Korean Air

Sunday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

See more direct flights

Direct returns

Incheon Intl to Washington, D.C. Dulles Intl

Monday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Thursday

Korean Air

Korean Air

Friday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Saturday

Korean Air

Korean Air

Sunday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

See more direct flights

Reviews of the top 5 airlines serving from Dulles Intl to Incheon

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Incheon. 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 Incheon? 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 1203 reviews
8.2Entertainment
8.7Crew
8.3Comfort
8.5Boarding
8.1Food
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.

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.

First time flying with them and was pleasantly surprised. I had a premium economy seat which is very similar to some other airlines regional business class product. Seat was large, pillow was provided, huge amount of leg room, entertainment was available (only Korean shows), and lunch meal was served between Narita and Seoul. Really enjoyable and affordable

Maybe the reimbursement voucher should have been larger than a 10k won. That voucher is only for refreshments. The flight was delayed or pushed to more than 5 hours. It should be more than just 10k won and it was already past midnight. Some people or passengers like who was already there 5 hours prior to the original flight departure. 4pm** That was the only unfortunate thing about it . Other than that it was good .

Excellent service, I love the soft blush pink mood lighting on the 767-400ER during meal service. The overhead gasper vents on the 767-400ER were also very strong with a lot of airflow to keep me comfortable on my flight.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

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

IAH to Istanbul was outstanding across the board. The flight from Istanbul to Male was good, not great.

the cabin was kept too hot. couldn't sleep as a result

It was an amazing experience. Flight crew's service, hospitality, and the food were phenomenal. I don't think I'd want to try any other airline company after this. I would definitely recommend to friends and family. Thank you Turkish Airlines !

Business Class pods are horrible. If you're petite, you might be able to sleep on the uncomfortable seat and bed. Crew and food are fantastic.

I have travelled many times on Turkish, but they always board at least 30-40 minutes past the stated time. If informed properly, passengers can choose to spend more time in the .lounge instead of standing around by the gate waiting to board. The new lounge at DFW was a big disappointment. The aircraft itself was a shock. In the past I have flown this sector with regular business class seating configuration of 1-2-1, The 2-3-2 seating is very disappointing after paying such high prices for tickets. The DFW to Istanbul segment was slightly better, but the Istanbul to Delhi segment was no better than premium economy. I will try to travel more on airlines which give business class passengers more value for their money.

Overall, excellent: check-in, boarding, service, and food. The Business Class seating is a little less private and spacious than the world's premier airlines, but still very good for a long haul flight.

On time. Friendly and helpful flight attendants. The plane was clean. Having a wine available would have been nice.

Your staff was exceptional. Could teach the other airlines-rules on etiquette, and service. Excellent landings on flights, carried out by your pilots. Only complaint is long delay on return flight in Beijing, onto Vancouver.

Worst than I expected, crew was not attentive, meal was as disgusting , they didn’t even drink selections as they would to other passengers. I felt discriminated

cannot get seat information for LAX to IAH when check in in XI,AN

UA is ok. But check in was a very bad experience

I hate that you cannot check in online and when you are at the airport, there aren't any aisle seats left. Also, they could work a little on subtitles for their movies (not everyone is a native English speaker).

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Communication between the captain/crew and the passengers needs to be improved.

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

Information on your arrival and departure airports