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$464+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SEL
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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The best prices from Washington, D.C. to Seoul are usually found in January or November, booked 68 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$880
(FlightHub)

One-way from

$464
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,388

Good round-trip deal

$1,326 or less

Good one-way deal

$766 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.
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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. 21% potential increase in price ($382 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Seoul (SEL).
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Seoul (SEL).
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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 February 22, 2025.

This Turkish Airlines deal was found by Cheapflights users on 2/21. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:25 pmIAD - ICN
1 stop21h 40mTurkish Airlines
Sat 11/1512:10 amICN - IAD
1 stop25h 05mTurkish Airlines
Deal found 2/21$877
This Mytrip deal was found by Cheapflights users on 2/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/81:45 pmBWI - ICN
3 stops33h 45mMultiple Airlines
Tue 4/155:45 pmICN - BWI
3 stops25h 01mMultiple Airlines
Deal found 2/21$1,028
This Mytrip deal was found by Cheapflights users on 2/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:45 pmIAD - ICN
1 stop35h 00mMultiple Airlines
Fri 5/305:45 pmICN - IAD
3 stops33h 59mMultiple Airlines
Deal found 2/21$1,029
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Tue 3/116:00 pmDCA - ICN
2 stops37h 30mMultiple Airlines
Tue 4/812:50 pmICN - DCA
1 stop21h 09mMultiple Airlines
Deal found 2/21$1,049
This Air Canada deal was found by Cheapflights users on 2/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/144:35 pmDCA - ICN
2 stops34h 30mAir Canada
Wed 5/285:45 pmICN - DCA
2 stops29h 34mAir Canada
Deal found 2/22$1,172
This Air Canada deal was found by Cheapflights users on 2/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/145:44 pmIAD - ICN
2 stops33h 21mAir Canada
Wed 5/285:45 pmICN - IAD
2 stops26h 59mAir Canada
Deal found 2/22$1,172
This oojo deal was found by Cheapflights users on 2/21. 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.
Tue 3/115:35 pmIAD - GMP
2 stops30h 30mAir China
Fri 3/142:25 pmGMP - IAD
1 stop37h 45mAir China
Deal found 2/21$1,172
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/13:00 pmBWI - ICN
2 stops38h 45mWestJet
Fri 5/28:45 pmICN - BWI
2 stops38h 48mWestJet
Deal found 2/20$1,194
This Ovago deal was found by Cheapflights users on 2/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:00 pmIAD - ICN
2 stops33h 35mAir China
Fri 4/255:50 pmICN - IAD
1 stop34h 50mAir China
Deal found 2/22$1,194
This Gurufare deal was found by Cheapflights users on 2/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:45 pmIAD - ICN
1 stop35h 00mWestJet
Sun 6/158:45 pmICN - IAD
1 stop34h 09mWestJet
Deal found 2/21$1,262
This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:35 amDCA - ICN
2 stops25h 35mCathay Pacific
Tue 5/208:05 pmICN - DCA
2 stops26h 24mCathay Pacific
Deal found 2/22$1,280
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/246:59 pmIAD - ICN
2 stops28h 46mCathay Pacific
Mon 3/311:40 pmICN - IAD
2 stops29h 00mCathay Pacific
Deal found 2/22$1,280

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 February 22, 2025.

Fly from

Washington, D.C.

Fly to

Seoul

Route

Depart

Return

Price

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 3/15

10:25 pm-6:20 pm

1 stop30h 55m

Incheon Intl

Sat 3/29

12:10 am-7:45 pm

1 stop32h 35m

$880

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Tue 4/8

1:45 pm-12:30 pm

3 stops33h 45m

Incheon Intl

Tue 4/15

5:45 pm-5:46 am

3 stops25h 01m

$1,028

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 5/21

6:45 pm-6:45 pm

1 stop35h 00m

Incheon Intl

Fri 5/30

5:45 pm-2:44 pm

3 stops33h 59m

$1,029

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 3/11

6:00 pm-8:30 pm

2 stops37h 30m

Incheon Intl

Tue 4/8

12:50 pm-8:59 pm

1 stop21h 09m

$1,049

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 5/14

4:35 pm-4:05 pm

2 stops34h 30m

Incheon Intl

Wed 5/28

5:45 pm-10:19 am

2 stops29h 34m

$1,172

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Tue 3/11

5:35 pm-1:05 pm

2 stops30h 30m

Seoul Gimpo Intl

Fri 3/14

2:25 pm-3:10 pm

1 stop37h 45m

$1,172

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 5/14

5:44 pm-4:05 pm

2 stops33h 21m

Incheon Intl

Mon 5/26

5:45 pm-7:44 am

2 stops26h 59m

$1,172

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Tue 4/1

3:00 pm-6:45 pm

2 stops38h 45m

Incheon Intl

Fri 5/2

8:45 pm-10:33 pm

2 stops38h 48m

$1,194

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 4/8

6:00 pm-4:35 pm

2 stops33h 35m

Incheon Intl

Fri 4/25

5:50 pm-3:40 pm

1 stop34h 50m

$1,194

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 6/6

6:45 pm-6:45 pm

1 stop35h 00m

Incheon Intl

Sun 6/15

8:45 pm-5:54 pm

1 stop34h 09m

$1,262

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 February 14, 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 68 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Seoul (average of $1,036). Flying from Washington, D.C. to Seoul in June is currently the most expensive (average of $1,697). 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 February 22, 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 34% 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 February 22, 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 February 22, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Seoul, such as EVA Air, Korean Air and ANA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

EVA Air
8.4
Very good
1,201 reviews
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Korean Air
8.4
Very good
1,037 reviews
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

ANA
8.4
Very good
836 reviews
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Delta
8.0
Very good
8,203 reviews
EVA Air
8.4
Very good
1,201 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Food

8.0

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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 $880, was found to be the cheapest airline from Washington, D.C. to Seoul.Alternate airlines to your destination round-trip include Air Canada and Air China. Turkish Airlines is currently priced 37% 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 $595 on WestJet. Other airlines that offer cheap prices include Turkish Airlines from $598 and Air Canada from $679 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 Baltimore/Washington - Incheon 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 $651. While the most popular route (Washington, D.C. Dulles Intl - Incheon Intl) can be booked for $778 on average our data indicates $8,272 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Seoul (average of $1,036). Flying from Washington, D.C. to Seoul in June is currently the most expensive (average of $1,697). 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$864Average$1,257FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,380FlexibilityNo cancel feeOn-time71%
DeltaCheapest$877Average$1,966FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$901Average$1,845FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$968Average$1,080FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,078Average$1,863FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$1,312Average$1,947FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$1,583Average$1,712FlexibilityNo cancel feeOn-time77%
KLMCheapest$1,598Average$1,689FlexibilityNo cancel feeOn-time75%
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