ICN - WAS

$369 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 2/19. 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
$507
Typical prices: $704-$1,055
American Airlines
Tue 2/17Tue 2/24
ICN - BWI • 1 stop
Cheapest non-stop
$894
Typical prices: $1,298-$1,774
AIR PREMIA
Sun 5/24Sun 6/7
ICN - IAD • Non-stop
Our travelers' advice
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
American Airlines
Cheapest • from $507 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ICN
-
IAD
Cheapest
ICN
-
IAD
Most popular
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 35% price drop
December
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 Washington, D.C.!
Flight Deals
Booking Insights
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.

Tue, Feb 17 - Tue, Feb 24
American Airlines Logo
7:15 pm - 10:59 pm
ICN
-
BWI
17h 44m
1 stop
American Airlines Logo
6:55 am - 4:45 pm
BWI
-
ICN
43h 50m
2 stops
$507American Airlines
Tue, Feb 17 - Sun, Mar 1
American Airlines Logo
7:15 pm - 10:53 pm
ICN
-
IAD
17h 38m
1 stop
American Airlines Logo
7:08 pm - 4:45 pm
IAD
-
ICN
31h 37m
1 stop
$507American Airlines
Tue, Feb 17 - Tue, Feb 24
American Airlines Logo
7:15 pm - 11:00 pm
ICN
-
DCA
17h 45m
1 stop
American Airlines Logo
10:00 pm - 4:45 pm
DCA
-
ICN
28h 45m
2 stops
$507American Airlines
Sat, Feb 21 - Sat, Feb 28
American Airlines Logo
7:15 pm - 8:48 am
ICN
-
IAD
51h 33m
2 stops
American Airlines Logo
4:46 pm - 4:45 pm
IAD
-
ICN
57h 59m
2 stops
$542American Airlines
Fri, Mar 20 - Sun, Mar 29
Japan Airlines Logo
5:55 pm - 10:59 am
ICN
-
DCA
30h 04m
2 stops
Japan Airlines Logo
11:34 am - 3:45 pm
DCA
-
ICN
39h 11m
2 stops
$602Japan Airlines
Fri, May 1 - Thu, May 28
Air Canada Logo
7:05 pm - 11:23 am
ICN
-
IAD
29h 18m
1 stop
Air Canada Logo
12:40 pm - 5:30 pm
IAD
-
ICN
39h 50m
1 stop
$655Air Canada
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
12:45 pm - 5:20 pm
ICN
-
BWI
18h 35m
1 stop
United Airlines Logo
8:42 am - 5:40 am
BWI
-
ICN
30h 58m
1 stop
$687United Airlines
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
12:45 pm - 9:39 pm
ICN
-
DCA
22h 54m
1 stop
United Airlines Logo
12:47 pm - 5:40 am
DCA
-
ICN
26h 53m
2 stops
$687United Airlines
Wed, May 6 - Thu, May 28
Air Canada Logo
5:45 pm - 12:01 pm
ICN
-
DCA
31h 16m
2 stops
Air Canada Logo
12:45 pm - 4:05 pm
DCA
-
ICN
38h 20m
2 stops
$688Air Canada
Tue, Mar 31 - Mon, May 4
Multiple Airlines Logo
9:00 pm - 6:04 pm
ICN
-
BWI
34h 04m
1 stop
Multiple Airlines Logo
7:04 am - 5:15 am
BWI
-
ICN
33h 11m
1 stop
$695Multiple 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.

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

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

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 $1,053 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 $726 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is $1,544 and $1,406 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 1 stop layover the cheapest option at $970 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 20 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 seasonMarch
Cheapest flight$369
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from Incheon to Washington Dulles Airport

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 $369 for a one-way ticket and $507 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 $1,339 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 $801 or less one-way and $1,207 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

Korean Air

Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

Korean Air

Korean Air

Thursday

Korean Air

Korean Air

Friday

Korean Air

Korean Air

Saturday

Korean Air

Korean Air

Sunday

Korean Air

Korean Air

See more direct flights

Direct returns

Washington, D.C. to Incheon Intl

Monday

Korean Air

Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

Korean Air

Korean Air

Thursday

Korean Air

Korean Air

Friday

Korean Air

Korean Air

Saturday

Korean Air

Korean Air

Sunday

Korean Air

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 1188 reviews
8.3Comfort
8.7Crew
8.5Boarding
8.1Food
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.

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.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

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

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Flight from MEX to ATL had to divert to Tampa. When we got off the plane, there were non directions on what to do. Nearly 30 minutes just standing around. Finally told to go through security with no boarding passes, and turned away. Then told to to go back. Took forever to leave Tampa for ATL. Missed my connection to Harrisburg.

This long-haul international flight was the most comfortable among any of the same kind of flight operated by an American-headquartered airline - second to none!

I've flown several other airlines, and Delta is really on top on things.

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

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

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

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.

Better entertainment & food options more may be adding chicken option or on vegetarian side good quality pasta

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

Amazing service, with enthusiastic crew members, and some breathtaking views of Vancouver. No IFE though, as it is only a 1 hour flight on a regional Turboprop jet.

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

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

Information on your arrival and departure airports