ICN - WAS

$399 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 2/8. 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
$471
Typical prices: $733-$1,022
American Airlines
Mon 3/2Wed 3/4
ICN - BWI • 2 stops
Cheapest non-stop
$1,249
Typical prices: $1,395-$1,821
Korean Air
Thu 1/29Wed 2/11
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
Alaska Airlines
Cheapest • from $480 (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 • 33% 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.

Mon, Mar 2 - Wed, Mar 4
American Airlines Logo
7:15 pm - 11:45 pm
ICN
-
BWI
42h 30m2 stops
American Airlines Logo
6:45 pm - 4:45 pm
BWI
-
ICN
56h 00m2 stops
$471American Airlines
Fri, Apr 24 - Sat, Apr 25
Alaska Airlines Logo
8:35 pm - 5:49 am
ICN
-
IAD
22h 14m1 stop
Alaska Airlines Logo
10:00 am - 6:35 pm
IAD
-
ICN
19h 35m1 stop
$480Alaska Airlines
Sun, Dec 21 - Sun, Jan 11
Air Canada Logo
5:55 pm - 8:26 pm
ICN
-
IAD
40h 31m2 stops
Air Canada Logo
5:10 pm - 5:10 pm
IAD
-
ICN
34h 00m2 stops
$482Air Canada
Sat, Dec 20 - Fri, Feb 6
Multiple Airlines Logo
9:00 am - 8:59 pm
ICN
-
IAD
25h 59m2 stops
Multiple Airlines Logo
9:45 am - 4:00 pm
IAD
-
ICN
40h 15m2 stops
$484Multiple Airlines
Sun, Dec 21 - Sun, Jan 11
Air Canada Logo
5:55 pm - 8:26 pm
ICN
-
IAD
40h 31m2 stops
Air Canada Logo
5:16 pm - 6:25 pm
IAD
-
ICN
35h 09m1 stop
$503Air Canada
Sun, Dec 21 - Sun, Jan 11
Multiple Airlines Logo
9:00 am - 8:26 pm
ICN
-
IAD
25h 26m2 stops
Multiple Airlines Logo
10:10 pm - 5:10 pm
IAD
-
ICN
29h 00m2 stops
$507Multiple Airlines
Wed, Dec 24 - Mon, Feb 23
United Airlines Logo
6:00 pm - 5:14 am
ICN
-
BWI
25h 14m1 stop
United Airlines Logo
8:42 am - 5:40 am
BWI
-
ICN
30h 58m1 stop
$522United Airlines
Wed, Dec 24 - Mon, Feb 23
United Airlines Logo
6:00 pm - 7:18 pm
ICN
-
IAD
39h 18m1 stop
United Airlines Logo
8:30 am - 4:15 pm
IAD
-
ICN
41h 45m1 stop
$538United Airlines
Wed, Dec 24 - Mon, Feb 23
Delta Logo
7:30 pm - 11:32 pm
ICN
-
BWI
18h 02m1 stop
Delta Logo
6:05 am - 3:30 pm
BWI
-
ICN
19h 25m1 stop
$633Delta
Fri, Jan 30 - Wed, Feb 25
Delta Logo
7:30 pm - 11:26 pm
ICN
-
BWI
17h 56m1 stop
Delta Logo
6:05 am - 3:30 pm
BWI
-
ICN
19h 25m1 stop
$634Delta
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 $1,286 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 Thursday 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 $1,560 and $1,499 respectively.

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.
Airports
ICN

Security lines at ICN can be long, so arrive early. Allow at least an hour for check-in, security, and passport control.

IAD

The Silver Line Metro offers a convenient ride from IAD to downtown D.C. in about 50 minutes.

Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know

Low seasonMarch
Cheapest flight$420
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 33% lower on average.
Flight from Incheon to Reagan Washington National 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 $405 for a one-way ticket and $471 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 8.2.

  • 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 $1,055 or less one-way and $1,339 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 1184 reviews
8.2Entertainment
8.3Comfort
8.5Boarding
8.7Crew
8.1Food
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.

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.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

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.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

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

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

The staff was great and made the long trip easy peasy!

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

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

Information on your arrival and departure airports