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Washington, D.C.

$374+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — WAS
mars 5 — mars 121
jeu. 3/5
jeu. 3/12
1 adult, Economy
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1. Tell us where you want to go

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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 février 3, 2026.

This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 2/185:55 pm
ICN
-
IAD
2 stops40h 59m
Air Canada
mer. 2/254:30 pm
IAD
-
ICN
2 stops33h 30m
Air Canada
Deal found 2/1$637
This WhyPayMore deal was found by Cheapflights users on 1/31. 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.
ven. 4/247:05 pm
ICN
-
IAD
1 stop29h 18m
Air Canada
ven. 7/179:55 am
IAD
-
ICN
1 stop18h 35m
Air Canada
Deal found 1/31$646
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/15:45 pm
ICN
-
IAD
2 stops35h 45m
Air Canada
sam. 5/910:07 pm
IAD
-
ICN
2 stops52h 58m
Air Canada
Deal found 2/1$650
This Travelocity deal was found by Cheapflights users on 2/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/85:45 pm
ICN
-
IAD
2 stops26h 59m
Air Canada
lun. 9/148:20 am
IAD
-
ICN
1 stop18h 45m
Air Canada
Deal found 2/1$659
This FlightHub deal was found by Cheapflights users on 2/1. 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.
mer. 5/135:45 pm
ICN
-
DCA
2 stops31h 16m
Air Canada
jeu. 5/2112:45 pm
DCA
-
ICN
2 stops38h 20m
Air Canada
Deal found 2/1$659
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/135:45 pm
ICN
-
IAD
2 stops27h 05m
Air Canada
mer. 6/179:45 am
IAD
-
ICN
2 stops41h 20m
Air Canada
Deal found 2/1$662
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/246:55 pm
ICN
-
IAD
2 stops30h 51m
Air Canada
jeu. 3/510:09 pm
IAD
-
ICN
2 stops29h 01m
Air Canada
Deal found 2/1$667
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/135:45 pm
ICN
-
IAD
2 stops34h 54m
Air Canada
jeu. 4/239:55 am
IAD
-
ICN
2 stops41h 10m
Air Canada
Deal found 2/1$671
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/77:05 pm
ICN
-
DCA
2 stops33h 25m
Air Canada
mar. 4/146:59 am
DCA
-
ICN
1 stop21h 31m
Air Canada
Deal found 2/1$672
This FlightHub deal was found by Cheapflights users on 2/1. 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.
mer. 5/65:45 pm
ICN
-
IAD
2 stops27h 05m
Air Canada
lun. 6/1510:05 pm
IAD
-
ICN
1 stop29h 20m
Air Canada
Deal found 2/1$673
This Air Canada deal was found by Cheapflights users on 2/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/115:45 pm
ICN
-
DCA
2 stops28h 08m
Air Canada
mer. 5/206:55 pm
DCA
-
ICN
2 stops32h 10m
Air Canada
Deal found 2/1$676
This Air Canada deal was found by Cheapflights users on 1/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/66:55 pm
ICN
-
IAD
2 stops40h 26m
Air Canada
lun. 3/99:00 am
IAD
-
ICN
1 stop19h 25m
Air Canada
Deal found 1/31$677

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 février 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$637
(Gotogate)

One-way from

$374
(Trip.com)

Popular in

August

Cheapest in

November

Average price

$667

Good round-trip deal

$1,207 or less

Good one-way deal

$801 or less
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.
Search Deals
From Seoul (SEL) to Washington, D.C. (WAS)
Search Deals
One-way flight from Seoul (SEL) to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Washington, D.C. (WAS).
Search Deals

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 février 3, 2026.
Use the filters below to find and compare flights from Seoul to Washington, D.C. that are best for you.

Fly from

Seoul

Fly to

Washington, D.C.

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

ven. 5/15

5:45 pm-12:01 pm

2 stops31h 16m

Washington, D.C. Reagan-National

lun. 6/1

12:45 pm-4:05 pm

2 stops38h 20m

$659

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

mar. 5/12

5:45 pm-12:01 pm

2 stops31h 16m

Washington, D.C. Reagan-National

lun. 5/25

11:00 am-5:30 pm

1 stop17h 30m

$678

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

mer. 5/13

5:45 pm-12:01 pm

2 stops31h 16m

Washington, D.C. Reagan-National

dim. 5/24

6:55 pm-5:30 pm

1 stop33h 35m

$678

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

ven. 5/15

7:05 pm-10:28 pm

1 stop16h 23m

Washington, D.C. Reagan-National

mar. 5/19

11:00 am-5:30 pm

1 stop17h 30m

$696

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

sam. 3/7

6:55 pm-5:05 pm

2 stops36h 10m

Washington, D.C. Reagan-National

dim. 5/10

12:45 pm-4:05 pm

2 stops38h 20m

$702

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

mar. 3/3

6:55 pm-8:55 am

2 stops28h 00m

Washington, D.C. Reagan-National

mar. 3/10

12:55 pm-5:25 pm

2 stops39h 30m

$728

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

jeu. 2/19

7:15 pm-7:44 am

2 stops26h 29m

Washington, D.C. Reagan-National

mer. 3/4

6:30 am-4:45 pm

1 stop20h 15m

$806

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

mar. 2/24

12:45 pm-5:20 pm

1 stop18h 35m

Baltimore/Washington

jeu. 3/5

6:31 pm-5:40 am

1 stop21h 09m

$820

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

mar. 3/3

6:00 pm-11:25 pm

2 stops19h 25m

Baltimore/Washington

mar. 3/10

6:31 pm-4:40 am

1 stop21h 09m

$821

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

ven. 3/6

12:45 pm-7:19 am

1 stop32h 34m

Baltimore/Washington

lun. 3/9

5:04 pm-4:40 am

2 stops46h 36m

$821

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 60 results
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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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice 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.

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

Currently, October is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $389). Flying from Seoul to Washington, D.C. in July is currently the most expensive (average of $954). 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 février 3, 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 février 3, 2026.

The most flights from SEL to WAS are scheduled on a Monday (2 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.

Read more
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.

Read more

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 février 3, 2026.
See what other customers who have flown with Korean Air, Asiana Airlines, and Delta 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.
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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!!
Korean Air
8.4
Very good
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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!!
Asiana Airlines
8.1
Very good
502 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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!!
Delta
7.9
Good
8,138 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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!!
United Airlines
7.4
Good
9,236 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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!!
Air Canada
7.1
Good
10,684 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

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 $820, Air Canada can have you in Washington, D.C. from Seoul in 18h 35m. The distance between Seoul and Washington, D.C. is about 6938 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 $501, 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 Air Canada - these airlines can fly you to your destination from $512 and $727, respectively. American Airlines is currently priced 51% 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 American Airlines, with whom users have recently found tickets for as low as $440. However, be on the lookout for offers from United Airlines and Korean Air, 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.?

    When deciding which route to take from Seoul to Washington, D.C. consider Incheon Intl - Washington, D.C. Dulles Intl, Incheon Intl - Baltimore/Washington or Incheon Intl - Washington, D.C. Reagan-National as they are the most popular.

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

    On average you can expect to pay $1,219 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $636 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $685.

  • 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, October is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $389). Flying from Seoul to Washington, D.C. in July is currently the most expensive (average of $954). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seoul to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Dulles Intl flights
Incheon Intl to Reagan-National flights
Busan to Dulles Intl flights

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 février 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$783FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$848FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,518FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$727Average$965FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,128Average$1,412FlexibilityNo cancel feeOn-time81%

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