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

Air Canada, at $520, 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 ANA. These flights start at 63% 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 Air Canada, with whom users have recently found tickets for as low as $406. However, be on the lookout for offers from WestJet and Japan Airlines, as they are both options that can get you from Seoul to Washington, D.C. Dulles Intl Airport for a low price.

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

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 $1,298. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $731 on average our data indicates $1,576 when flying from Seoul to Washington, D.C. Dulles Intl Airport.

What are the most popular airlines that fly from Seoul to Washington, D.C. Dulles Intl Airport?

When booking a flight from Seoul to Washington, D.C. Dulles Intl Airport, you may want to consider flying on American Airlines, Air Canada or Delta as they are the most popular for this route.

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

Users have found that flying from Seoul to Washington, D.C. Dulles Intl Airport on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

The best pricing can be found in the month of February. Prices to Washington, D.C. Dulles Intl Airport from Seoul average $1,025. You can even find prices in February for less than $1,025, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $748. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Seoul. Flying in the targeted month can save you up to 18%.

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.

$406+ Flights from Seoul to Washington, D.C. Dulles Intl Airport

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

Airfare is below average for this route at the moment. Seoul to Washington, D.C. Dulles Intl Airport flights typically cost between $1,175 and $1,595 in September. The cheapest round-trip price found within the last 3 days was $520 on Air Canada (Sep 12-Sep 25).

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Cheap flight deals from Seoul to Dulles Intl

Round-trip from	$520 (Booking.com)
One-way from	$406 (Mytrip)
Popular in	April
Cheapest in	September
Average price	$1,764
Good round-trip deal	$1,318 or less

From Seoul (SEL) to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Seoul (SEL) to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($189 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Seoul (SEL) to Washington, D.C. Dulles Intl.

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Find 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 July 30, 2025.

Fri 9/126:00 pmICN - IAD

2 stops30h 45mAir Canada

Thu 9/259:35 amIAD - ICN

1 stop17h 40mAir Canada

Deal found 7/29

$520

Wed 8/274:50 pmICN - IAD

1 stop39h 02mUnited Airlines

Fri 8/2912:20 pmIAD - ICN

1 stop38h 30mUnited Airlines

Deal found 7/30

$630

Wed 9/107:55 pmGMP - IAD

1 stop27h 10mANA

Fri 12/511:05 amIAD - GMP

1 stop21h 25mANA

Deal found 7/30

$968

Best flights from Seoul to Dulles Intl
Discover carefully curated flight deals from Seoul to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Fri 9/126:00 pmICN - IAD

2 stops30h 45mAir Canada

Thu 9/259:35 amIAD - ICN

1 stop17h 40mAir Canada

Deal found 7/29

$520

Wed 8/274:50 pmICN - IAD

1 stop39h 02mUnited Airlines

Fri 8/2912:20 pmIAD - ICN

1 stop38h 30mUnited Airlines

Deal found 7/30

$630

Wed 9/107:55 pmGMP - IAD

1 stop27h 10mANA

Fri 12/511:05 amIAD - GMP

1 stop21h 25mANA

Deal found 7/30

$968

Last-minute flights from Seoul to Dulles Intl
Discover last-minute flight deals from Seoul to Dulles Intl. Data last updated July 30, 2025 and is based on user searches.

Mon 8/49:00 amICN - IAD

1 stop19h 45mUnited Airlines

Tue 8/53:00 pmIAD - ICN

1 stop35h 00mUnited Airlines

Deal found 7/30

$629

Mon 8/49:25 pmICN - IAD

2 stops34h 34mAlaska Airlines

Thu 8/147:59 pmIAD - ICN

3 stops34h 01mAlaska Airlines

Deal found 7/29

$1,277

Thu 8/77:55 amGMP - IAD

2 stops27h 49mMultiple Airlines

Tue 8/126:27 amIAD - GMP

2 stops39h 18mMultiple Airlines

Deal found 7/30

$1,444

Thu 8/77:55 amGMP - IAD

2 stops36h 32mJapan Airlines

Sun 8/106:30 amIAD - GMP

2 stops26h 20mJapan Airlines

Deal found 7/30

$1,485

Thu 8/77:55 pmGMP - IAD

1 stop27h 10mANA

Sun 8/1012:15 pmIAD - GMP

1 stop21h 05mANA

Deal found 7/30

$1,735

Fri 8/85:45 pmICN - IAD

1 stop25h 36mAir Canada

Wed 10/225:37 pmIAD - ICN

1 stop33h 38mAir Canada

Deal found 7/29

$948

Sun 8/105:25 pmICN - IAD

2 stops42h 31mAmerican Airlines

Sat 8/166:27 amIAD - ICN

1 stop20h 03mAmerican Airlines

Deal found 7/30

$943

Mon 8/2512:05 pmGMP - IAD

2 stops32h 27mJapan Airlines

Fri 9/197:00 amIAD - GMP

2 stops25h 50mJapan Airlines

Deal found 7/29

$1,346

Tue 8/266:00 pmICN - IAD

1 stop30h 13mAir Canada

Thu 9/189:35 amIAD - ICN

1 stop17h 40mAir Canada

Deal found 7/29

$878

Thu 8/2810:10 amICN - IAD

2 stops36h 27mMultiple Airlines

Thu 9/49:35 amIAD - ICN

1 stop17h 40mMultiple Airlines

Deal found 7/29

$918

Thu 8/2812:40 pmGMP - IAD

1 stop34h 25mANA

Thu 9/1112:15 pmIAD - GMP

1 stop33h 50mANA

Deal found 7/30

$1,009

Thu 8/286:20 pmICN - IAD

1 stop19h 00mAsiana Airlines

Thu 9/45:40 pmIAD - ICN

1 stop21h 40mAsiana Airlines

Deal found 7/29

$1,115

One-way flights from Seoul to Dulles Intl
Search for one-way flight options from Seoul to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Fri 9/126:00 pmICN - IAD

1 stop30h 13mAir Canada

Deal found 7/29

$406

Mon 9/296:20 pmICN - IAD

2 stops43h 03mMultiple Airlines

Deal found 7/29

$459

Sun 10/128:45 pmICN - IAD

1 stop34h 05mWestJet

Deal found 7/29

$521

Wed 9/107:55 amGMP - IAD

2 stops36h 38mJapan Airlines

Deal found 7/29

$594

Wed 9/107:55 amGMP - IAD

2 stops21h 55mMultiple Airlines

Deal found 7/30

$620

Tue 8/57:15 pmGMP - IAD

2 stops37h 04mEVA Air

Deal found 7/30

$945

Thu 12/112:25 pmGMP - IAD

2 stops30h 26mAir China

Deal found 7/28

$950

Wed 9/37:55 pmGMP - IAD

1 stop27h 10mANA

Deal found 7/29

$1,065

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 9/12

6:00 pm-11:45 am

2 stops30h 45m

Washington, D.C. Dulles Intl

Thu 9/25

9:35 am-4:15 pm

1 stop17h 40m

$520

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 8/27

4:50 pm-6:52 pm

1 stop39h 02m

Washington, D.C. Dulles Intl

Fri 8/29

12:20 pm-3:50 pm

1 stop38h 30m

$630

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/10

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Fri 12/5

11:05 am-10:30 pm

1 stop21h 25m

$968

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 9/12

6:00 pm-11:13 am

1 stop30h 13m

$406

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/29

6:20 pm-12:23 am

2 stops43h 03m

$459

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 10/12

8:45 pm-5:50 pm

1 stop34h 05m

$521

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/10

7:55 am-7:33 am

2 stops36h 38m

$594

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/10

7:55 am-4:50 pm

2 stops21h 55m

$620

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 8/5

7:15 pm-7:19 pm

2 stops37h 04m

$945

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 12/11

2:25 pm-6:51 am

2 stops30h 26m

$950

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 11 results

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, July is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Seoul to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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?

A simple way to save on the total cost of your ticket is to fly from Seoul to Washington, D.C. Dulles Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 40% on your trip compared to booking a flight in the morning.

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

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 a feel of what it's like to fly with EVA Air, ANA, and Japan 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.

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,222 reviews

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.4

Very good

922 reviews

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Japan Airlines

8.3

Very good

1,536 reviews

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

United Airlines

7.4

Good

8,896 reviews

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Air China

7.3

Good

93 reviews

EVA Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

What are the cheapest airlines flying from Seoul to Washington, D.C. Dulles Intl Airport round-trip?
Air Canada, at $520, 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 ANA. These flights start at 63% 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 Air Canada, with whom users have recently found tickets for as low as $406. However, be on the lookout for offers from WestJet and Japan Airlines, 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 $1,298. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $731 on average our data indicates $1,576 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, July is the cheapest month in which you can book a flight from Seoul to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Seoul to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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Top 5 airlines flying from Seoul to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$688	Average$964	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$724	Average$902	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$873	Average$965	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$1,223	Average$1,497	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$1,313	Average$1,577	FlexibilityNo cancel fee	On-timeN/A

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$406+ Cheap flights from Seoul (SEL) to Dulles Intl (IAD)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seoul to Dulles Intl with Cheapflights

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Cheap flight deals from Seoul to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Seoul to Dulles Intl

Cheapest flights from Seoul to Dulles IntlExplore 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 July 30, 2025.

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 July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seoul to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

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 July 30, 2025.

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 July 30, 2025.

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 a feel of what it's like to fly with EVA Air, ANA, and Japan 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.

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.

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Seoul to Dulles Intl

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Top 5 airlines flying from Seoul to Dulles Intl

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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 July 30, 2025.