Washington, D.C.

$523+ Cheap flights from Seoul (SEL) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — WAS
Jun 13 — Jun 201
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheap flight deals from Seoul to Washington, D.C.

Cheapest flights from Seoul to Washington, D.C.
Explore the most affordable flight options available from Seoul to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.

This Hanatour deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:05 pm
ICN
-
IAD
1 stop19h 25m
Air China
Tue 10/2711:00 pm
IAD
-
ICN
1 stop28h 35m
Air China
Deal found 5/9$1,083
This FlightHub deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:45 am
ICN
-
IAD
1 stop46h 30m
Turkish Airlines
Wed 1/61:30 pm
IAD
-
ICN
1 stop29h 35m
Turkish Airlines
Deal found 5/10$1,108
This oojo deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:50 pm
ICN
-
IAD
1 stop38h 40m
Air China
Tue 8/411:00 pm
IAD
-
ICN
1 stop23h 35m
Air China
Deal found 5/12$1,123
This oojo deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:50 am
ICN
-
IAD
1 stop21h 40m
Air China
Tue 8/411:00 pm
IAD
-
ICN
1 stop23h 35m
Air China
Deal found 5/11$1,130
This oojo deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:50 am
ICN
-
IAD
1 stop21h 40m
Air China
Fri 7/1711:00 pm
IAD
-
ICN
1 stop23h 35m
Air China
Deal found 5/8$1,131
This Justfly.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:45 pm
ICN
-
IAD
1 stop40h 45m
Air China
Fri 9/1811:00 pm
IAD
-
ICN
1 stop23h 35m
Air China
Deal found 5/9$1,132
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:45 am
ICN
-
BWI
2 stops20h 35m
United Airlines
Sat 10/3110:45 am
BWI
-
ICN
2 stops28h 55m
United Airlines
Deal found 5/12$1,149
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:45 pm
ICN
-
IAD
2 stops20h 20m
United Airlines
Wed 11/115:15 pm
IAD
-
ICN
2 stops22h 25m
United Airlines
Deal found 5/12$1,149
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:45 pm
ICN
-
DCA
1 stop23h 08m
United Airlines
Sun 11/87:00 am
DCA
-
ICN
1 stop19h 25m
United Airlines
Deal found 5/12$1,149
This WhyPayMore deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:35 pm
ICN
-
IAD
1 stop17h 24m
Alaska Airlines
Wed 10/289:35 am
IAD
-
ICN
1 stop19h 00m
Alaska Airlines
Deal found 5/12$1,155
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:15 pm
ICN
-
BWI
2 stops29h 19m
United Airlines
Mon 10/266:15 am
BWI
-
ICN
1 stop21h 00m
United Airlines
Deal found 5/12$1,162
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:50 pm
ICN
-
IAD
1 stop27h 12m
United Airlines
Sun 5/176:30 am
IAD
-
ICN
1 stop19h 30m
United Airlines
Deal found 5/12$1,162

Find flight deals from Seoul to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,083
(Hanatour)

One-way from

$523
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,022

Good round-trip deal

$1,155 or less

Good one-way deal

$690 or less
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.
From Seoul (SEL) to Washington, D.C. (WAS)
One-way flight from Seoul (SEL) to Washington, D.C. (WAS)
Highest demand for flights based on searches. 21% potential increase in price ($269 potential increase over avg. RT price).
Cheapest flight prices on average. 8% potential price decrease ($82 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Seoul (SEL) to Washington, D.C. (WAS).
Price to beat on a one-way flight from Seoul (SEL) to Washington, D.C. (WAS).

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
Use the filters below to find and compare flights from Seoul to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 11/4

6:30 pm-10:31 pm

1 stop18h 01m

Washington, D.C. Reagan-National

Sun 11/8

6:00 pm-5:40 am

1 stop21h 40m

$1,161

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 6/10

11:30 am-9:00 pm

2 stops22h 30m

Washington, D.C. Dulles Intl

Wed 9/16

3:02 pm-4:20 am

2 stops24h 18m

$1,250

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Mon 6/22

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Wed 9/23

12:15 pm-10:20 pm

1 stop21h 05m

$1,270

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 6/21

1:20 am-3:40 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Wed 9/23

9:00 pm-5:05 pm

1 stop31h 05m

$1,337

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 10/20

1:20 am-3:40 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Fri 10/23

9:00 pm-5:15 pm

1 stop31h 15m

$1,360

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 6/22

1:20 am-3:40 pm

1 stop27h 20m

Washington, D.C. Dulles Intl

Mon 6/29

9:00 pm-5:05 pm

1 stop31h 05m

$1,375

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 6/22

8:25 am-11:19 pm

2 stops27h 54m

Washington, D.C. Dulles Intl

Wed 9/23

6:15 am-3:20 pm

1 stop20h 05m

$1,384

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Tue 5/26

4:50 pm-5:57 pm

1 stop38h 07m

Baltimore/Washington

Tue 6/2

6:38 am-4:20 am

1 stop32h 42m

$1,448

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 5/26

11:45 pm-6:20 pm

1 stop31h 35m

Washington, D.C. Dulles Intl

Tue 6/2

9:00 pm-7:05 pm

2 stops33h 05m

$1,472

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Thu 7/16

4:50 pm-7:10 am

1 stop27h 20m

Baltimore/Washington

Thu 7/23

4:23 pm-4:20 am

2 stops22h 57m

$1,477

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Seoul to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Washington, D.C. in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seoul-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seoul to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Seoul with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Washington, D.C.

How far ahead should I book a flight from Seoul to Washington, D.C.?

The price you pay for your flight from Seoul to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seoul to Washington, D.C.?

Currently, September is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $275). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $640). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to WAS?

Find hourly flight availability from Seoul to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2026.

When flying from Seoul to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seoul to Washington, D.C.

Explore weekly flight availability from Seoul to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 14, 2026.

The most flights from SEL to WAS are scheduled on a Wednesday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Seoul to Washington, D.C.?

The best insider tips for Seoul to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seoul to Washington, D.C. trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated May 14, 2026.
See what other customers who have flown with Korean Air,Asiana Airlines, andDelta from Seoul to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Seoul to Washington, D.C.?

    For as low as $1,161, United Airlines can have you in Washington, D.C. from Seoul in 18h 01m. The distance between Seoul and Washington, D.C. is about 6953 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seoul to Washington, D.C. round-trip?

    Currently priced at $478, American Airlines will fly you from Seoul to Washington, D.C. and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $508 and $853, respectively. American Airlines is currently priced 52% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seoul to Washington, D.C. one-way?

    The cheapest airline one-way is AIR PREMIA, with whom users have recently found tickets for as low as $501. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Seoul to Washington, D.C. for a low price.

  • What are the most popular routes from Seoul to Washington, D.C.?

  • What are the most reliable airlines from Seoul to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from Seoul to Washington, D.C. consider choosing AIR PREMIA (100%), Delta (89%) or Korean Air (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seoul to Washington, D.C.?

    On average you can expect to pay $1,235 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $603 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $1,149.

  • Can I find deals for flights from Seoul to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Seoul to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Washington, D.C..

  • Can I find deals for business class flights from Seoul to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Seoul to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $275). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $640). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seoul to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Seoul to Washington, D.C.

Discover the top 5 airlines that operate flights from Seoul to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$478Average$723FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$901FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,442FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$915Average$1,088FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,223Average$1,576FlexibilityNo cancel feeOn-time81%

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