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Dulles Intl

$477+ Cheap flights from Seoul (SEL) to Dulles Intl (IAD)

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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — IAD
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
1 adult, Economy
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Cheap flight deals from Seoul to Dulles Intl

Cheapest flights from Seoul to Dulles Intl
Explore the most affordable flight options available from Seoul to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

This WhyPayMore deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/158:35 pmICN - IAD
1 stop34h 01mHawaiian Airlines
vie. 2/276:27 pmIAD - ICN
1 stop34h 08mHawaiian Airlines
Deal found 12/15$477
This Air Canada deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:55 pmICN - IAD
2 stops30h 28mAir Canada
vie. 2/2710:09 pmIAD - ICN
2 stops27h 51mAir Canada
Deal found 12/15$483
This American Airlines deal was found by Cheapflights users on 12/15. 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.
mié. 12/247:15 pmICN - IAD
1 stop35h 01mAmerican Airlines
lun. 2/164:40 pmIAD - ICN
2 stops34h 05mAmerican Airlines
Deal found 12/15$490
This United Airlines deal was found by Cheapflights users on 12/14. 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.
jue. 12/256:00 pmICN - IAD
2 stops25h 19mUnited Airlines
sáb. 2/141:20 pmIAD - ICN
2 stops26h 20mUnited Airlines
Deal found 12/14$511
This CheapOair deal was found by Cheapflights users on 12/13. 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.
vie. 12/199:00 amICN - IAD
2 stops26h 25mMultiple Airlines
mié. 12/315:16 pmIAD - ICN
2 stops32h 44mMultiple Airlines
Deal found 12/13$514
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mié. 12/246:00 pmICN - IAD
1 stop26h 47mUnited Airlines
lun. 2/2310:10 pmIAD - ICN
1 stop28h 05mUnited Airlines
Deal found 12/14$521
This WhyPayMore deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/157:50 pmGMP - IAD
1 stop27h 20mANA
vie. 2/2711:10 amIAD - GMP
1 stop21h 20mANA
Deal found 12/13$1,005
This FlightHub deal was found by Cheapflights users on 12/13. 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.
mar. 12/232:25 pmGMP - IAD
1 stop18h 05mAir China
vie. 1/210:00 pmIAD - GMP
1 stop25h 05mAir China
Deal found 12/13$1,141
This Cheapflightsfares deal was found by Cheapflights users on 12/13. 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.
mar. 12/237:50 pmGMP - IAD
1 stop27h 20mANA
vie. 1/21:00 pmIAD - GMP
2 stops32h 20mANA
Deal found 12/13$1,401
This KAYAK deal was found by Cheapflights users on 12/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:50 pmGMP - IAD
1 stop27h 20mANA
mar. 2/1711:10 amIAD - GMP
1 stop21h 20mANA
Deal found 12/14$1,425
This ANA deal was found by Cheapflights users on 12/15. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:50 pmGMP - IAD
1 stop27h 20mANA
mar. 1/611:10 amIAD - GMP
1 stop34h 10mANA
Deal found 12/15$1,440
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2912:25 pmGMP - IAD
1 stop34h 45mANA
jue. 1/11:00 pmIAD - GMP
2 stops32h 20mANA
Deal found 12/15$1,443

Find flight deals from Seoul to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Dulles Intl (IAD). 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 diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$483
(American Airlines)

Popular in

April

Cheapest in

November

Average price

$1,322

Good round-trip deal

$1,327 or less

Good one-way deal

$1,055 or less
Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. Dulles Intl flights.
Search Deals
From Seoul (SEL) to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($495 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul to Dulles Intl 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 diciembre 15, 2025.
Use the filters below to find and compare flights from Seoul to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Seoul

Fly to

Dulles Intl

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

vie. 12/26

12:45 pm-1:07 am

1 stop26h 22m

Washington, D.C. Dulles Intl

lun. 2/16

6:05 pm-5:40 am

1 stop21h 35m

$511

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

jue. 1/29

12:45 pm-11:22 pm

2 stops24h 37m

Washington, D.C. Dulles Intl

jue. 2/5

10:20 pm-4:15 pm

1 stop27h 55m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 3/2

6:00 pm-8:48 pm

1 stop16h 48m

Washington, D.C. Dulles Intl

mié. 3/4

4:10 pm-5:40 am

1 stop23h 30m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

mar. 3/3

6:00 pm-8:48 pm

1 stop16h 48m

Washington, D.C. Dulles Intl

jue. 4/16

10:05 pm-3:00 pm

2 stops27h 55m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

jue. 1/29

12:45 pm-8:54 pm

1 stop22h 09m

Washington, D.C. Dulles Intl

lun. 3/2

6:05 pm-5:40 am

1 stop21h 35m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 2/2

12:45 pm-7:35 pm

1 stop20h 50m

Washington, D.C. Dulles Intl

mar. 3/31

6:30 am-3:00 pm

1 stop19h 30m

$616

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

jue. 1/29

12:45 pm-8:54 pm

1 stop22h 09m

Washington, D.C. Dulles Intl

vie. 3/6

10:10 pm-5:40 am

1 stop41h 30m

$640

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

sáb. 1/31

6:00 pm-11:22 pm

2 stops19h 22m

Washington, D.C. Dulles Intl

dom. 3/8

10:30 pm-3:15 pm

2 stops27h 45m

$640

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

lun. 2/2

12:45 pm-11:22 pm

2 stops24h 37m

Washington, D.C. Dulles Intl

sáb. 2/28

6:20 am-4:15 pm

1 stop19h 55m

$640

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

dom. 3/8

11:45 am-12:03 am

1 stop26h 18m

Washington, D.C. Dulles Intl

dom. 3/15

10:30 pm-3:15 pm

2 stops27h 45m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 37 results
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Compare providers for flights from Seoul to Dulles Intl

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 Dulles Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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. Dulles Intl Airport 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. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

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

Currently, November is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Seoul to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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 IAD?

Find hourly flight availability from Seoul to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to Washington, D.C. Dulles Intl Airport as you normally would.

Weekly flight availability from Seoul to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Seoul to Dulles Intl. 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 diciembre 15, 2025.

The most flights from SEL to IAD are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Seoul to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated diciembre 15, 2025.
Get a feel of what it's like to fly with Korean Air, Delta, and United Airlines from Seoul to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,010 reviews
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,095 reviews
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
American Airlines
7.2
Good
11,048 reviews
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,527 reviews
Korean Air
8.4
Very good
1,186 reviews

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to Dulles Intl. 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. Dulles Intl Airport?

    United Airlines and ANA can get you from Seoul to Washington, D.C. Dulles Intl Airport in just under 26h 22m. Your travel time can differ by up to 8h 23m. Airlines will cover a distance of 6939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    American Airlines, at $501, was found to be the cheapest airline from Seoul to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Air Canada. These flights start at 61% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $440. However, be on the lookout for offers from United Airlines and Korean Air, as they are both options that can get you from Seoul to Washington, D.C. Dulles Intl Airport for a low price.

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

    Looking at all options, your cheapest flight can be booked for $1,052. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $514 on average, our data indicates $1,285 when flying from Seoul to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Seoul to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Seoul to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Dulles Intl?

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

  • Can I find deals for business class flights from Seoul to Dulles Intl?

    Yes. Cheapflights offers flight deals from Seoul to Dulles Intl 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. Dulles Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Seoul to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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Alternative routes for Seoul to Dulles Intl

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

Top 5 airlines flying from Seoul to Dulles Intl

Discover the top 5 airlines that operate flights from Seoul to Dulles Intl. 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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$723FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$512Average$731FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$727Average$965FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,208Average$1,507FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,301Average$1,579FlexibilityNo cancel feeOn-timeN/A

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