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$443+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SEL
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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The best prices from Washington, D.C. to Seoul are usually found in January or November, booked 80 days in advance, depart on a Tuesday or Monday 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 December 22, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$877
(Delta)

One-way from

$456
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,352
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
High demand for flights, 19% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
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 December 22, 2024.

This Air Canada deal was found by Cheapflights users on 12/21. 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.
Mon 12/308:40 pmDCA - ICN
2 stops28h 35mAir Canada
Mon 1/274:55 pmICN - DCA
2 stops30h 02mAir Canada
Deal found 12/21$1,360
This Justfly.com deal was found by Cheapflights users on 12/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:10 pmIAD - ICN
2 stops32h 05mAir Canada
Mon 1/274:55 pmICN - IAD
2 stops32h 43mAir Canada
Deal found 12/21$1,360
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/305:00 amDCA - ICN
1 stop21h 45mAmerican Airlines
Mon 1/276:50 pmICN - DCA
1 stop18h 10mAmerican Airlines
Deal found 12/21$1,370
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:05 amBWI - ICN
1 stop20h 10mUnited Airlines
Mon 1/276:00 pmICN - BWI
1 stop27h 02mUnited Airlines
Deal found 12/21$1,413
This Trip.com deal was found by Cheapflights users on 12/21. 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 12/309:25 pmIAD - ICN
1 stop30h 55mMultiple Airlines
Mon 1/275:50 pmICN - IAD
1 stop34h 20mMultiple Airlines
Deal found 12/21$1,522
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/309:25 pmIAD - ICN
1 stop30h 55mTurkish Airlines
Sun 1/2612:10 amICN - IAD
1 stop26h 05mTurkish Airlines
Deal found 12/21$1,732
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/308:54 amBWI - ICN
2 stops41h 16mMultiple Airlines
Sun 1/191:20 pmICN - BWI
1 stop20h 54mMultiple Airlines
Deal found 12/21$1,744
This Air France deal was found by Cheapflights users on 12/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:50 pmBWI - ICN
2 stops56h 05mKLM
Sun 1/1911:05 pmICN - BWI
2 stops55h 43mKLM
Deal found 12/21$1,893
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:50 amIAD - ICN
Nonstop15h 50mKorean Air
Mon 1/277:25 pmICN - IAD
1 stop18h 57mKorean Air
Deal found 12/21$1,998
This Delta deal was found by Cheapflights users on 12/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2310:01 amBWI - ICN
1 stop29h 44mDelta
Mon 12/309:35 amICN - BWI
1 stop16h 09mDelta
Deal found 12/22$2,123
This KLM deal was found by Cheapflights users on 12/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:35 pmIAD - ICN
1 stop33h 15mKLM
Sun 1/1911:05 pmICN - IAD
1 stop30h 40mKLM
Deal found 12/20$2,184
This Ovago deal was found by Cheapflights users on 12/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/245:50 pmIAD - ICN
1 stop21h 40mAsiana Airlines
Thu 12/268:40 pmICN - IAD
1 stop18h 13mAsiana Airlines
Deal found 12/20$2,186

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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Wed 3/12

6:00 am-3:30 pm

1 stop20h 30m

Incheon Intl

Mon 3/31

6:40 pm-11:53 pm

1 stop18h 13m

$877

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 1/16

6:06 am-4:45 pm

1 stop20h 39m

Incheon Intl

Thu 1/30

6:50 pm-11:00 pm

1 stop18h 10m

$877

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 1/23

6:10 am-4:45 pm

1 stop20h 35m

Incheon Intl

Thu 1/30

6:50 pm-10:41 pm

1 stop17h 51m

$877

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Mon 1/6

7:00 pm-4:45 pm

1 stop31h 45m

Incheon Intl

Thu 1/30

6:50 pm-11:27 pm

1 stop18h 37m

$883

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Thu 3/13

6:02 am-3:15 pm

1 stop20h 13m

Incheon Intl

Tue 4/1

11:30 am-5:32 pm

1 stop19h 02m

$902

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Thu 1/23

2:00 pm-9:05 am

1 stop29h 05m

Incheon Intl

Wed 1/29

12:10 am-7:30 pm

1 stop33h 20m

$992

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 1/25

9:00 am-7:00 pm

2 stops44h 00m

Incheon Intl

Wed 1/29

6:55 pm-4:32 pm

1 stop35h 37m

$1,046

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 3/25

5:35 pm-1:05 pm

2 stops30h 30m

Seoul Gimpo Intl

Mon 3/31

2:20 pm-3:10 pm

1 stop37h 50m

$1,167

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 3/12

4:10 pm-3:25 pm

2 stops34h 15m

Incheon Intl

Wed 3/26

4:55 pm-10:29 am

2 stops30h 34m

$1,171

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 3/10

3:55 pm-3:25 pm

2 stops34h 30m

Incheon Intl

Thu 4/3

7:05 pm-9:41 am

1 stop27h 36m

$1,177

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 60 results
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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 December.
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*2 stars
CheapfaremartPrice Accuracy-Trust 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 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 December 20, 2024.

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 $1,729). 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 December 22, 2024.

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. Sunday 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 December 22, 2024.

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 December 22, 2024.
Read through reviews of airlines operating flights from Washington, D.C. to Seoul, such as Delta, American Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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
8.4
Very good
1,025 reviews
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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
844 reviews
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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
1,440 reviews
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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
474 reviews
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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.

Delta
8.0
Very good
8,594 reviews
Korean Air
8.4
Very good
1,025 reviews

Overall

8.4

Crew

8.7

Comfort

8.3

Food

8.1

Boarding

8.5

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?

    Delta, at $877, was found to be the cheapest airline from Washington, D.C. to Seoul.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 41% 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 $469 on American Airlines. Other airlines that offer cheap prices include United Airlines from $506 and Delta from $519 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.

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

    Looking at all options, your cheapest flight can be booked for $848. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $987 on average our data indicates $8,341 when flying from Washington, D.C. to Seoul.

  • 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 $1,729). 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

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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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$864Average$1,327FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$902Average$1,905FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$902Average$1,559FlexibilityNo cancel feeOn-time71%
DeltaCheapest$902Average$2,011FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$969Average$1,081FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,082Average$1,950FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,420Average$1,709FlexibilityNo cancel feeOn-time76%
KLMCheapest$1,559Average$1,689FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$1,583Average$1,712FlexibilityNo cancel feeOn-time77%
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