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$470+ Cheap flights from Dulles Intl (IAD) 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEL
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Seoul are usually found in November or February, booked 24 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Dulles Intl to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$877
(American Airlines)

One-way from

$470
(American Airlines)

Popular in

June

Cheapest in

November

Average price

$1,312

Good round-trip deal

$1,296 or less

Good one-way deal

$773 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Seoul (SEL) flights.
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From Washington, D.C. Dulles Intl to Seoul (SEL)
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One-way flight from Washington, D.C. Dulles Intl to Seoul (SEL)
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Highest demand for flights based on searches. 17% potential increase in price ($370 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Seoul (SEL).
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Seoul (SEL).
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Find flight deals from Dulles Intl to Seoul

Cheapest flights from Dulles Intl to Seoul
Explore the most affordable flight options available from Dulles Intl to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This American Airlines deal was found by Cheapflights users on 1/30. 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.
Sat 2/155:13 pmIAD - ICN
1 stop33h 32mAmerican Airlines
Wed 2/196:50 pmICN - IAD
1 stop17h 43mAmerican Airlines
Deal found 1/30$877
This Justfly.com deal was found by Cheapflights users on 1/29. 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.
Fri 4/1110:35 amIAD - ICN
1 stop17h 55mAir Canada
Fri 4/185:45 pmICN - IAD
2 stops30h 29mAir Canada
Deal found 1/29$950
This FlightHub deal was found by Cheapflights users on 1/30. 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.
Wed 3/59:25 pmIAD - ICN
1 stop30h 55mTurkish Airlines
Wed 3/2610:45 amICN - IAD
1 stop46h 45mTurkish Airlines
Deal found 1/30$975
This Trip.com deal was found by Cheapflights users on 1/28. 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 4/27:00 amIAD - ICN
1 stop23h 50mMultiple Airlines
Wed 4/167:05 pmICN - IAD
1 stop31h 41mMultiple Airlines
Deal found 1/28$1,009
This Kissandfly.com deal was found by Cheapflights users on 1/30. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/318:05 pmIAD - ICN
2 stops54h 40mBritish Airways
Fri 2/76:50 pmICN - IAD
1 stop17h 51mBritish Airways
Deal found 1/30$1,168
This oojo deal was found by Cheapflights users on 1/29. 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 1/29$1,172
This Expedia deal was found by Cheapflights users on 1/28. 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.
Mon 3/1710:35 amIAD - GMP
2 stops22h 55mMultiple Airlines
Mon 3/312:25 pmGMP - IAD
1 stop38h 15mMultiple Airlines
Deal found 1/28$1,322
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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 9/812:15 pmIAD - GMP
1 stop21h 05mANA
Mon 9/297:55 pmGMP - IAD
1 stop27h 10mANA
Deal found 1/30$1,603
This Japan Airlines deal was found by Cheapflights users on 1/30. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/27:00 amIAD - GMP
2 stops25h 50mJapan Airlines
Sun 4/1312:05 pmGMP - IAD
2 stops30h 29mJapan Airlines
Deal found 1/30$1,995

Find flights from Dulles Intl to Seoul within your budget

Customize your flight search to find flights from Dulles Intl 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 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 2/9

6:10 am-4:45 pm

1 stop20h 35m

Incheon Intl

Thu 2/20

6:50 pm-10:33 pm

1 stop17h 43m

$878

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Fri 4/11

10:35 am-5:30 pm

1 stop17h 55m

Incheon Intl

Fri 4/18

5:45 pm-11:14 am

2 stops30h 29m

$950

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 3/5

2:00 pm-6:20 pm

1 stop38h 20m

Incheon Intl

Tue 3/25

12:10 am-8:30 pm

1 stop33h 20m

$975

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 4/2

7:00 am-7:50 pm

1 stop23h 50m

Incheon Intl

Wed 4/16

7:05 pm-1:46 pm

1 stop31h 41m

$1,009

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

$1,172

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Tue 3/18

5:35 pm-11:40 am

2 stops29h 05m

Incheon Intl

Mon 3/31

2:40 pm-3:40 pm

1 stop38h 00m

$1,194

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 3/12

12:10 pm-11:20 am

1 stop34h 10m

Seoul Gimpo Intl

Wed 4/2

7:55 pm-10:05 am

1 stop27h 10m

$1,615

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Fri 4/25

7:00 am-9:50 pm

2 stops25h 50m

Seoul Gimpo Intl

Fri 5/16

2:25 pm-3:40 pm

1 stop38h 15m

$1,643

Washington, D.C.Seoul

IAD - GMP

IADGMP

Washington, D.C. Dulles Intl

Wed 4/2

7:00 am-9:50 pm

2 stops25h 50m

Seoul Gimpo Intl

Sun 4/13

12:05 pm-5:34 am

2 stops30h 29m

$1,995

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 2/9

6:10 am-4:45 pm

1 stop20h 35m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 23 results
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Compare providers for flights from Dulles Intl 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 Dulles Intl 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*1 star
Justfly.comPrice Accuracy3 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 Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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 Dulles Intl to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Dulles Intl 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 Dulles Intl to Seoul

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Seoul. Price data was last updated on January 24, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Seoul is 24 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seoul (average of $1,086). Flying from Washington, D.C. Dulles Intl Airport to Seoul in June is currently the most expensive (average of $1,714). 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 IAD to SEL?

Find hourly flight availability from Dulles Intl 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 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 41% on flights from Washington, D.C. Dulles Intl Airport to Seoul by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Seoul. Price data was last updated on September 29, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Seoul flight should consider departing on Tuesday 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. Dulles Intl Airport to Seoul

Explore weekly flight availability from Dulles Intl 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 30, 2025.

The most flights from IAD 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 30, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Seoul, such as Korean Air, ANA and Japan Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

ANA
8.4
Very good
844 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Japan Airlines
8.3
Very good
1,445 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Delta
8.0
Very good
8,450 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

United Airlines
7.4
Good
8,906 reviews
Korean Air
8.5
Very good
1,034 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.5

Food

8.1

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Related info for your journey

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

    Flying on American Airlines is currently your cheapest option to Seoul, with prices starting at $877. Additional round-trip tickets that might be worth considering are offered by Air Canada and Turkish Airlines, with the lowest prices starting at $950 and $975, respectively. American Airlines is currently priced 48% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport 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 $524 and Air Canada from $677 one-way.

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Seoul is $633. On average you can expect to pay $8,239. The most popular route, (Washington, D.C. Dulles Intl - Incheon Intl), can usually be booked for $854.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Seoul (average of $1,086). Flying from Washington, D.C. Dulles Intl Airport to Seoul in June is currently the most expensive (average of $1,714). 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 Dulles Intl to Seoul

Discover the top 9 airlines that operate flights from Dulles Intl 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$864Average$1,137FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,288FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$969Average$1,080FlexibilityNo cancel feeOn-time77%
Asiana AirlinesCheapest$1,407Average$1,750FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,557Average$1,915FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$1,583Average$1,712FlexibilityNo cancel feeOn-time77%
DeltaCheapest$1,591Average$2,122FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$1,598Average$1,689FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$1,798Average$2,279FlexibilityNo cancel feeOn-time69%
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