ICN - WAS

$435 Find Cheap Flights from Seoul Incheon Airport to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Washington, D.C. departing on 8/25. 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 Washington, D.C.

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

Cheapest round-trip
$624
Typical prices: $1,462-$1,607
Delta
Wed 4/1Mon 4/20
ICN - BWI • 2 stops
Cheapest non-stop
$738
Typical prices: $1,452-$1,671
AIR PREMIA
Mon 9/7Wed 9/16
ICN - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
The Silver Line Metro offers a convenient ride from IAD.
Security lines at ICN can be long, so arrive early.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $624 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Korean Air and AIR PREMIA. Average duration is 13h 35m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $625 (round-trip)
Shortest trip • 16h 23m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
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We hope you love your trip to Washington, D.C.!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Incheon Intl to Washington, D.C. (ICN-WAS)

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

Wed, Apr 1 - Mon, Apr 20
Delta Logo
7:00 pm - 5:51 am
ICN
-
BWI
23h 51m
2 stops
Delta Logo
6:03 am - 5:20 pm
BWI
-
ICN
22h 17m
2 stops
$624Delta
Fri, Apr 24 - Sat, Apr 25
Alaska Airlines Logo
7:35 pm - 5:50 am
ICN
-
IAD
23h 15m
1 stop
Alaska Airlines Logo
9:00 am - 5:30 pm
IAD
-
ICN
19h 30m
1 stop
$644Alaska Airlines
Fri, Apr 24 - Thu, Apr 30
Alaska Airlines Logo
7:35 pm - 12:09 am
ICN
-
IAD
17h 34m
1 stop
Alaska Airlines Logo
9:00 am - 5:30 pm
IAD
-
ICN
19h 30m
1 stop
$662Alaska Airlines
Mon, Apr 27 - Mon, May 4
Alaska Airlines Logo
7:35 pm - 5:50 am
ICN
-
IAD
23h 15m
1 stop
Alaska Airlines Logo
9:00 am - 5:30 pm
IAD
-
ICN
19h 30m
1 stop
$678Alaska Airlines
Fri, Apr 24 - Sat, Apr 25
Alaska Airlines Logo
7:35 pm - 5:50 am
ICN
-
IAD
23h 15m
1 stop
Alaska Airlines Logo
9:00 am - 5:30 pm
IAD
-
ICN
19h 30m
1 stop
$694Alaska Airlines
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
4:50 pm - 11:31 am
ICN
-
IAD
31h 41m
2 stops
United Airlines Logo
8:12 pm - 3:00 pm
IAD
-
ICN
29h 48m
2 stops
$695United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
11:30 am - 10:28 pm
ICN
-
DCA
23h 58m
1 stop
United Airlines Logo
4:11 pm - 3:00 pm
DCA
-
ICN
33h 49m
2 stops
$695United Airlines
Thu, Apr 23 - Sun, Apr 26
United Airlines Logo
11:30 am - 9:39 am
ICN
-
BWI
35h 09m
2 stops
United Airlines Logo
6:55 pm - 3:00 pm
BWI
-
ICN
31h 05m
2 stops
$700United Airlines
Thu, Apr 23 - Sun, Apr 26
Korean Air Logo
7:40 pm - 11:26 pm
ICN
-
BWI
16h 46m
1 stop
Korean Air Logo
6:00 am - 4:00 am
BWI
-
ICN
33h 00m
1 stop
$849Korean Air
Tue, Apr 7 - Sat, Apr 18
Asiana Airlines Logo
4:50 pm - 8:56 am
ICN
-
DCA
29h 06m
2 stops
Asiana Airlines Logo
5:59 pm - 3:00 pm
DCA
-
ICN
32h 01m
1 stop
$955Asiana Airlines
Booking Insights

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

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

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

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

The cheapest return flight from Incheon Intl Airport to Washington, D.C. costs $822 on the route between Incheon Intl Airport (ICN) and Washington, D.C. Dulles Intl Airport (IAD). It is also the most popular route.

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Incheon Intl Airport to Washington, D.C., 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 Incheon Intl Airport to Washington, D.C. is October, where tickets cost $710 (return) on average. On the other hand, the most expensive months are July and November, where the average cost of round-trip tickets is $1,575 and $1,295 respectively.

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

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 2 stops layover the cheapest option at $1,019 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Incheon Intl Airport to Washington, D.C., 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 Incheon Intl Airport to Washington, D.C., you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

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

 
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$435
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Seoul Incheon Airport to Baltimore

When to book flights from Incheon Intl to Washington, D.C.

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

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

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to Washington, D.C. was $435 for a one-way ticket and $624 for a round-trip.

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

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

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

    On your way to Washington, D.C., you’ll fly out from Incheon Intl. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Seoul Incheon Airport to Washington, D.C.?

    Delta, and Asiana Airlines offer inflight Wi-Fi service on the Seoul Incheon Airport to Washington, D.C. flight route.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Incheon to Washington, D.C. are Korean Air and Asiana Airlines. With an average price for the route of $1,372 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $1,319 and an overall rating of 8.1.

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

    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 Seoul Incheon Airport to Washington, D.C..

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

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

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

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

    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 Washington, D.C. from Seoul Incheon 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 Incheon Intl Airport to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $634 or less one-way and $998 or less round-trip.

Prefer to fly direct from Seoul Incheon Airport to Washington, D.C.?

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

Direct departures

Incheon Intl to Washington, D.C.

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

Washington, D.C. 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

Reviews of the top 5 airlines serving from Incheon Intl to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Incheon to Washington, D.C.. 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 Incheon Intl to Washington, D.C.? 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 1202 reviews
8.1Food
8.3Comfort
8.5Boarding
8.7Crew
8.2Entertainment
Airline reviews

Great service and comfort level. You can have more of vegetarian food options.

10.0 ExcellentAnonymous, Nov 2025
ICN - SFO
Read more Korean Air reviews

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Coming back to America was a peaceful flight everyone and everything was perfect

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

My ticket did not exist when I got to the airport. I had to book another flight and was still charged by Kayak

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

The plane was delayed an hour. Heard from other passengers that the Vancouver connection to SFO was never on-time.

My experience was good with United too But only not so good thing was that at Calgary airport I was not given lounge access despite of flying business. Aspire lounge denied it to me, which was unfair I feel

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

they were super helpful. Agents at the desk got me on an earlier flight and I was able to get home several hours earlier.

This is a great non-stop YVR-MIA. Very comfortable plane, and no transfer through a city that gets major winter weather!

Terrible…. Reported missing luggage’s with injectable meds that needed refrigeration. Yet, delivery could not be expedited. Luggage’s were delivered 5 days after arrival. The meds were useless as ice pack had melted. So disappointed!!!

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

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

Information on your arrival and departure airports