HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seoul

$452+ Cheap flights from Washington, D.C. (WAS) to Seoul (SEL)

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SEL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Seoul with Cheapflights

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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Washington, D.C. to Seoul are usually found in January or November, booked 80 days in advance, depart on a Sunday or Wednesday and return on a Sunday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Seoul (SEL). 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$877
(Trip.com)

One-way from

$452
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$964

Good round-trip deal

$1,294 or less

Good one-way deal

$863 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seoul (SEL) flights.
Search Deals
From Washington, D.C. (WAS) to Seoul (SEL)
Search Deals
One-way flight from Washington, D.C. (WAS) to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($367 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Seoul (SEL).
Search Deals

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

Cheapest flights from Washington, D.C. to Seoul
Explore the most affordable flight options available from Washington, D.C. to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/205:09 amDCA - ICN
2 stops21h 36mAmerican Airlines
Wed 3/56:50 pmICN - DCA
2 stops26h 37mAmerican Airlines
Deal found 1/21$876
This Trip.com deal was found by Cheapflights users on 1/21. 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.
Mon 3/37:00 amDCA - ICN
2 stops32h 30mMultiple Airlines
Mon 3/104:40 pmICN - DCA
2 stops32h 23mMultiple Airlines
Deal found 1/21$892
This CrystalTravel deal was found by Cheapflights users on 1/21. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/179:25 pmIAD - ICN
1 stop30h 55mTurkish Airlines
Sun 3/212:10 amICN - IAD
1 stop33h 20mTurkish Airlines
Deal found 1/21$958
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:00 amBWI - ICN
2 stops32h 40mMultiple Airlines
Tue 3/188:25 amICN - BWI
3 stops34h 25mMultiple Airlines
Deal found 1/20$972
This Trip.com deal was found by Cheapflights users on 1/21. 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.
Wed 3/267:00 amIAD - ICN
1 stop24h 30mMultiple Airlines
Wed 4/235:30 pmICN - IAD
2 stops27h 13mMultiple Airlines
Deal found 1/21$1,012
This Flighttix deal was found by Cheapflights users on 1/21. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/208:53 pmDCA - ICN
2 stops29h 52mBritish Airways
Wed 3/56:50 pmICN - DCA
2 stops25h 44mBritish Airways
Deal found 1/21$1,076
This oojo deal was found by Cheapflights users on 1/20. 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 4/86:00 pmIAD - ICN
2 stops28h 35mAir China
Fri 4/255:50 pmICN - IAD
1 stop34h 50mAir China
Deal found 1/20$1,168
This oojo deal was found by Cheapflights users on 1/19. 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.
Sat 3/84:35 pmIAD - GMP
2 stops30h 30mAir China
Mon 3/172:25 pmGMP - IAD
1 stop37h 45mAir China
Deal found 1/19$1,168
This Air Canada deal was found by Cheapflights users on 1/20. 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 7/84:35 pmDCA - ICN
2 stops34h 30mAir Canada
Tue 7/226:00 pmICN - DCA
1 stop29h 18mAir Canada
Deal found 1/20$1,172
This Air Canada deal was found by Cheapflights users on 1/21. 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 5/135:30 pmIAD - ICN
1 stop33h 35mAir Canada
Tue 6/245:45 pmICN - IAD
1 stop35h 42mAir Canada
Deal found 1/21$1,172
This oojo deal was found by Cheapflights users on 1/20. 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 4/87:00 amIAD - ICN
2 stops40h 35mCathay Pacific
Mon 4/143:10 pmICN - IAD
2 stops27h 30mCathay Pacific
Deal found 1/20$1,217
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/208:30 amBWI - ICN
2 stops39h 45mAir China
Mon 3/33:30 pmICN - BWI
2 stops29h 21mAir China
Deal found 1/19$1,315

Find flights from Washington, D.C. to Seoul within your budget

Customize your flight search to find flights from Washington, D.C. to Seoul 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 2/20

5:09 am-4:45 pm

2 stops21h 36m

Incheon Intl

Wed 3/5

6:50 pm-7:27 am

2 stops26h 37m

$876

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Mon 2/17

6:00 am-3:30 pm

1 stop19h 30m

Incheon Intl

Thu 3/20

5:50 pm-9:55 pm

1 stop17h 05m

$877

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Mon 2/17

5:00 am-4:45 pm

2 stops21h 45m

Incheon Intl

Thu 2/27

6:50 pm-10:59 pm

1 stop18h 09m

$882

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 3/3

7:00 am-5:30 am

2 stops32h 30m

Incheon Intl

Mon 3/10

4:40 pm-12:03 pm

2 stops32h 23m

$892

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 2/17

9:25 pm-6:20 pm

1 stop30h 55m

Incheon Intl

Sun 3/2

12:10 am-7:30 pm

1 stop33h 20m

$958

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 3/26

7:00 am-8:30 pm

1 stop24h 30m

Incheon Intl

Wed 4/23

5:30 pm-7:43 am

2 stops27h 13m

$1,012

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Mon 3/24

1:45 pm-9:05 pm

2 stops42h 20m

Incheon Intl

Thu 4/10

12:50 pm-9:02 pm

1 stop21h 12m

$1,030

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 2/20

8:53 pm-4:45 pm

2 stops29h 52m

Incheon Intl

Wed 3/5

6:50 pm-6:34 am

2 stops25h 44m

$1,076

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 4/8

6:00 pm-11:35 am

2 stops28h 35m

Incheon Intl

Fri 4/25

5:50 pm-3:40 pm

1 stop34h 50m

$1,168

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Sat 3/8

4:35 pm-1:05 pm

2 stops30h 30m

Seoul Gimpo Intl

Mon 3/17

2:25 pm-3:10 pm

1 stop37h 45m

$1,168

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 57 results
1
2
3
...
6

Compare providers for flights from Washington, D.C. to Seoul

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 Washington, D.C. to Seoul in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Washington, D.C.-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Seoul 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 Washington, D.C.-Seoul 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 Washington, D.C. to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Washington, D.C. 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.

Travel insights for flights from Washington, D.C. to Seoul

Get recent, data-driven insights about flights from Washington, D.C. to Seoul including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Seoul. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Seoul, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Seoul (average of $1,086). Flying from Washington, D.C. to Seoul in June is currently the most expensive (average of $1,722). 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 WAS to SEL?

Find hourly flight availability from Washington, D.C. to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Washington, D.C. to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight at noon.

What is the cheapest day to fly from Washington, D.C. to Seoul?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Seoul. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Seoul flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Washington, D.C. to Seoul. 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 January 21, 2025.

The most flights from WAS to SEL 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).

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated January 21, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Seoul, such as Turkish Airlines, Air China and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,358 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Overall

8.5

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

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

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

    Turkish Airlines, at $958, was found to be the cheapest airline from Washington, D.C. to Seoul.Alternate airlines to your destination round-trip include Air China and Cathay Pacific. Turkish Airlines is currently priced 34% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $470 on American Airlines. Other airlines that offer cheap prices include Turkish Airlines from $528 and WestJet from $649 one-way.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Seoul 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 Washington, D.C. to Seoul?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Seoul (average of $1,086). Flying from Washington, D.C. to Seoul in June is currently the most expensive (average of $1,722). 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

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.

Top 9 airlines flying from Washington, D.C. to Seoul

Discover the top 9 airlines that operate flights from Washington, D.C. to Seoul. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$864Average$1,325FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,470FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$902Average$1,884FlexibilityNo cancel feeOn-time69%
DeltaCheapest$902Average$2,014FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$968Average$1,080FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,082Average$1,906FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,420Average$1,736FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$1,583Average$1,712FlexibilityNo cancel feeOn-time77%
KLMCheapest$1,598Average$1,689FlexibilityNo cancel feeOn-time75%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.