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Washington, D.C.

$362+ Cheap flights from Seoul (SEL) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — WAS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find 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 November 3, 2025.

This Hanatour deal was found by Cheapflights users on 11/2. 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.
Sat 11/86:55 pmICN - DCA
2 stops28h 00mAir Canada
Sun 11/168:40 pmDCA - ICN
2 stops30h 30mAir Canada
Deal found 11/2$362
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:10 pmICN - IAD
1 stop33h 36mAir Canada
Wed 12/34:30 pmIAD - ICN
2 stops33h 30mAir Canada
Deal found 11/2$365
This YBTour deal was found by Cheapflights users on 11/2. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:55 pmICN - DCA
2 stops29h 31mAir Canada
Thu 11/1312:55 pmDCA - ICN
2 stops38h 15mAir Canada
Deal found 11/2$366
This Hanatour deal was found by Cheapflights users on 11/3. 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.
Thu 11/208:10 pmICN - IAD
1 stop33h 36mAir Canada
Sun 11/309:00 amIAD - ICN
1 stop19h 25mAir Canada
Deal found 11/3$388
This Onlinetour deal was found by Cheapflights users on 11/2. 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 Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:10 pmICN - IAD
1 stop38h 16mAir Canada
Sun 11/169:00 amIAD - ICN
1 stop19h 25mAir Canada
Deal found 11/2$405
This Gotogate deal was found by Cheapflights users on 11/1. 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.
Thu 11/206:55 pmICN - DCA
2 stops31h 24mAir Canada
Wed 12/312:55 pmDCA - ICN
2 stops37h 05mAir Canada
Deal found 11/1$419
This Gotogate deal was found by Cheapflights users on 11/3. 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.
Sun 11/96:55 pmICN - IAD
2 stops63h 59mAir Canada
Thu 11/139:45 amIAD - ICN
2 stops41h 25mAir Canada
Deal found 11/3$442
This SmartFares deal was found by Cheapflights users on 11/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:35 pmICN - IAD
1 stop23h 38mAlaska Airlines
Thu 1/17:33 amIAD - ICN
1 stop21h 02mAlaska Airlines
Deal found 11/3$461
This Air Canada deal was found by Cheapflights users on 11/2. 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.
Tue 11/186:55 pmICN - IAD
2 stops30h 28mAir Canada
Wed 1/219:45 amIAD - ICN
2 stops40h 15mAir Canada
Deal found 11/2$463
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Tue 11/186:55 pmICN - DCA
2 stops29h 31mAir Canada
Wed 1/2112:55 pmDCA - ICN
2 stops37h 05mAir Canada
Deal found 11/2$463
This Air Canada deal was found by Cheapflights users on 11/3. 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.
Wed 12/35:55 pmICN - IAD
2 stops36h 26mAir Canada
Tue 1/135:48 pmIAD - ICN
2 stops33h 22mAir Canada
Deal found 11/3$464
This Air Canada deal was found by Cheapflights users on 11/3. 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.
Tue 11/46:55 pmICN - DCA
2 stops31h 24mAir Canada
Sun 11/912:55 pmDCA - ICN
2 stops38h 15mAir Canada
Deal found 11/3$464

Cheap 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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$365
(Trip.com)

Popular in

August

Cheapest in

September

Average price

$967

Good round-trip deal

$1,418 or less

Good one-way deal

$1,077 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
Highest demand for flights based on searches. 17% potential increase in price ($223 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($75 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 2025.
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

Thu 11/20

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Wed 12/3

12:55 pm-4:00 pm

2 stops37h 05m

$419

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 12/4

6:55 pm-8:59 pm

2 stops40h 04m

Washington, D.C. Dulles Intl

Sat 1/10

9:45 am-5:10 pm

2 stops41h 25m

$463

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 12/2

6:55 pm-8:59 pm

2 stops40h 04m

Washington, D.C. Dulles Intl

Sat 1/10

9:45 am-5:10 pm

2 stops41h 25m

$463

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 11/20

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Thu 11/27

12:55 pm-5:10 pm

2 stops38h 15m

$463

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 12/4

6:55 pm-11:39 am

2 stops30h 44m

Washington, D.C. Dulles Intl

Sun 1/11

10:06 pm-6:25 pm

1 stop30h 19m

$482

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 12/22

8:10 pm-12:19 pm

2 stops30h 09m

Washington, D.C. Reagan-National

Wed 12/31

6:00 am-4:00 pm

2 stops44h 00m

$482

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sat 11/22

8:10 pm-6:05 pm

1 stop35h 55m

Washington, D.C. Reagan-National

Sun 11/30

6:59 am-6:25 pm

1 stop21h 26m

$502

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/18

8:10 pm-10:35 pm

1 stop16h 25m

Washington, D.C. Reagan-National

Wed 1/21

9:40 am-6:25 pm

1 stop18h 45m

$502

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Fri 1/30

12:45 pm-5:26 pm

1 stop18h 41m

Baltimore/Washington

Sun 2/22

6:25 pm-5:40 am

1 stop21h 15m

$503

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 11/19

12:45 pm-5:28 pm

1 stop18h 43m

Baltimore/Washington

Mon 1/19

8:20 am-5:40 am

2 stops31h 20m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $412). 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 November 3, 2025.

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 November 3, 2025.

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).

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seoul to Washington, D.C. trip
Airports
ICN

Plan for extra time at ICN as security lines can take up to 20 minutes, especially without fast track options.

Read more about ICNby Gabriel Leigh
IAD

Use the Silver Line Metro for a cheap and quick 40-minute ride from IAD to Washington, D.C.

Read more about IADby Ramsey Qubein
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

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

Ramsey Qubein

Ramsey Qubein

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 November 3, 2025.
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
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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!!
Korean Air
8.4
Very good
1,160 reviews
Korean Air
8.4
Very good
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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!!
Asiana Airlines
8.2
Very good
484 reviews
Korean Air
8.4
Very good
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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!!
Delta
7.9
Good
8,002 reviews
Korean Air
8.4
Very good
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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!!
United Airlines
7.4
Good
8,998 reviews
Korean Air
8.4
Very good
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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!!
Air Canada
7.1
Good
10,400 reviews
Korean Air
8.4
Very good
1,160 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

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 $503, Air Canada can have you in Washington, D.C. from Seoul in 18h 41m. 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 $516 and $688, 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 Canada, with whom users have recently found tickets for as low as $534. However, be on the lookout for offers from EVA Air and Japan 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.?

    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 $1,327 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $655 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $469.

  • 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 $412). 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$852FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$738FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,520FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$688Average$973FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,185Average$1,406FlexibilityNo cancel feeOn-time81%

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