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

Currently priced at $823, WestJet will fly you from Seoul to Washington, D.C. and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $855 and $881, respectively. WestJet is currently priced 23% below the average price you’ll pay for this route.

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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $588. However, be on the lookout for offers from WestJet and EVA Air, as they are both options that can get you from Seoul to Washington, D.C. for a low price.

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

Travelers seeking maximum savings on their Seoul to Washington, D.C. 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.

What are the most popular routes from Seoul to Washington, D.C.?

When deciding which route to take from Seoul to Washington, D.C. consider Incheon Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Dulles Intl or Incheon Intl - Washington, D.C. Reagan-National as they are the most popular.

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

Before booking your flight from Seoul to Washington, D.C. check out the most popular airlines for this route: American Airlines, Delta or Korean Air.

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

Tuesday flights are found to be more expensive to fly from Seoul to Washington, D.C.. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from Seoul to Washington, D.C.?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 113% on flights from Seoul to Washington, D.C. compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $827. For sooner than that we have options available in the next 3 days from $2,963.

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

February is one of the best times of the year to fly to Washington, D.C. from Seoul. Prices for February average $1,082 per person but you can even find prices for as low as $748. The most expensive prices can be found in the month of August. Opting for a February flight can save you 50% on your journey compared to booking in August

Can I find deals for flights from Seoul to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Seoul to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seoul to Washington, D.C.?

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

Can I find deals for business class flights from Seoul to Washington, D.C.?

Yes. Cheapflights offers flight deals from Seoul to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$463+ Flights from Seoul to Washington, D.C.

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Find cheap flights from Seoul to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seoul to Washington, D.C. are usually found in February or December, booked 41 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

Cheap flight deals from Seoul to Washington, D.C.

Round-trip from	$823 (Mytrip)
One-way from	$463 (Kiwi.com)
Popular in	August
Cheapest in	February
Average price	$1,208
Good round-trip deal	$1,241 or less
Good one-way deal	$1,156 or less

From Seoul (SEL) to Washington, D.C. (WAS)

Search Deals

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

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($203 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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

Search Deals

Price to beat on a one-way flight from Seoul (SEL) to Washington, D.C. (WAS).

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Find flight deals from Seoul to Washington, D.C.

Cheapest flights from Seoul to Washington, D.C.
Explore the most affordable flight options available from Seoul to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Sun 9/218:45 pmICN - IAD

1 stop34h 05mWestJet

Fri 9/266:45 pmIAD - ICN

1 stop35h 00mWestJet

Deal found 6/12

$823

Thu 6/194:50 pmICN - BWI

1 stop25h 44mUnited Airlines

Fri 7/410:59 amBWI - ICN

2 stops28h 21mUnited Airlines

Deal found 6/12

$829

Wed 9/175:45 pmICN - DCA

2 stops28h 14mAir Canada

Wed 10/224:35 pmDCA - ICN

2 stops34h 30mAir Canada

Deal found 6/12

$855

Wed 9/175:45 pmICN - IAD

1 stop25h 46mAir Canada

Wed 10/225:37 pmIAD - ICN

1 stop33h 38mAir Canada

Deal found 6/12

$857

Wed 8/278:40 pmICN - BWI

1 stop24h 26mMultiple Airlines

Wed 9/37:00 amBWI - ICN

1 stop32h 20mMultiple Airlines

Deal found 6/10

$872

Tue 10/285:50 pmICN - IAD

2 stops25h 33mMultiple Airlines

Wed 11/56:11 pmIAD - ICN

2 stops56h 54mMultiple Airlines

Deal found 6/10

$901

Wed 8/276:30 pmICN - IAD

1 stop34h 15mUnited Airlines

Fri 8/296:35 amIAD - ICN

1 stop32h 45mUnited Airlines

Deal found 6/11

$908

Thu 12/2510:35 amICN - DCA

2 stops24h 25mMultiple Airlines

Tue 12/306:00 amDCA - ICN

2 stops45h 05mMultiple Airlines

Deal found 6/11

$964

Tue 7/112:40 pmGMP - IAD

1 stop34h 25mANA

Mon 7/2112:15 pmIAD - GMP

1 stop21h 05mANA

Deal found 6/10

$998

Mon 6/168:40 pmICN - BWI

1 stop33h 14mAsiana Airlines

Tue 7/16:02 pmBWI - ICN

1 stop20h 58mAsiana Airlines

Deal found 6/10

$1,020

Wed 9/1010:25 amICN - IAD

Nonstop13h 30mDelta

Wed 11/265:10 pmIAD - ICN

1 stop34h 35mDelta

Deal found 6/12

$1,045

Sat 9/138:35 pmICN - DCA

1 stop34h 24mAlaska Airlines

Tue 12/96:35 pmDCA - ICN

2 stops34h 00mAlaska Airlines

Deal found 6/10

$1,053

Best flights from Seoul to Washington, D.C.
Discover carefully curated flight deals from Seoul to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Sun 9/218:45 pmICN - IAD

1 stop34h 05mWestJet

Fri 9/266:45 pmIAD - ICN

1 stop35h 00mWestJet

Deal found 6/12

$823

Wed 9/175:45 pmICN - DCA

2 stops28h 14mAir Canada

Wed 10/224:35 pmDCA - ICN

2 stops34h 30mAir Canada

Deal found 6/12

$855

Wed 8/278:40 pmICN - BWI

1 stop24h 26mMultiple Airlines

Wed 9/37:00 amBWI - ICN

1 stop32h 20mMultiple Airlines

Deal found 6/10

$872

Mon 9/811:30 amICN - BWI

1 stop19h 01mUnited Airlines

Fri 10/314:12 pmBWI - ICN

2 stops23h 28mUnited Airlines

Deal found 6/11

$881

Tue 7/112:40 pmGMP - IAD

1 stop34h 25mANA

Mon 7/2112:15 pmIAD - GMP

1 stop21h 05mANA

Deal found 6/10

$998

Wed 9/1010:25 amICN - IAD

Nonstop13h 30mDelta

Wed 11/265:10 pmIAD - ICN

1 stop34h 35mDelta

Deal found 6/12

$1,045

Wed 9/242:40 pmICN - IAD

1 stop19h 41mAsiana Airlines

Mon 12/85:30 pmIAD - ICN

1 stop20h 50mAsiana Airlines

Deal found 6/11

$1,050

Sat 9/138:35 pmICN - DCA

1 stop34h 24mAlaska Airlines

Tue 12/96:35 pmDCA - ICN

2 stops34h 00mAlaska Airlines

Deal found 6/10

$1,053

Wed 9/175:25 pmICN - BWI

1 stop18h 57mAmerican Airlines

Wed 10/225:02 amBWI - ICN

2 stops21h 28mAmerican Airlines

Deal found 6/12

$1,229

Tue 10/2812:05 pmGMP - DCA

2 stops23h 50mJapan Airlines

Fri 11/76:42 amDCA - GMP

2 stops25h 38mJapan Airlines

Deal found 6/11

$1,242

Wed 6/256:40 pmICN - BWI

1 stop18h 08mKorean Air

Thu 7/36:00 amBWI - ICN

1 stop22h 20mKorean Air

Deal found 6/10

$1,414

Wed 9/175:45 pmICN - IAD

1 stop25h 46mAir Canada

Wed 10/225:37 pmIAD - ICN

1 stop33h 38mAir Canada

Deal found 6/12

$857

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated June 12, 2025 and is based on user searches.

Thu 6/128:40 pmICN - BWI

1 stop24h 27mMultiple Airlines

Tue 6/246:00 pmBWI - ICN

1 stop21h 20mMultiple Airlines

Deal found 6/11

$978

Mon 6/168:40 pmICN - BWI

1 stop33h 14mAsiana Airlines

Tue 7/16:02 pmBWI - ICN

1 stop20h 58mAsiana Airlines

Deal found 6/10

$1,020

Tue 6/178:40 pmICN - IAD

1 stop21h 57mAsiana Airlines

Tue 7/18:30 amIAD - ICN

1 stop30h 30mAsiana Airlines

Deal found 6/10

$1,205

Wed 6/186:30 pmICN - IAD

1 stop34h 15mUnited Airlines

Wed 8/206:35 amIAD - ICN

1 stop32h 45mUnited Airlines

Deal found 6/12

$921

Wed 6/187:30 pmICN - IAD

1 stop29h 29mDelta

Wed 8/201:30 pmIAD - ICN

Nonstop15h 10mDelta

Deal found 6/12

$1,118

Wed 6/1810:05 pmICN - IAD

1 stop31h 20mMultiple Airlines

Wed 8/206:45 pmIAD - ICN

2 stops37h 50mMultiple Airlines

Deal found 6/12

$1,139

Wed 6/1812:35 amICN - IAD

2 stops32h 30mEthiopian Air

Wed 6/259:50 pmIAD - ICN

2 stops29h 10mEthiopian Air

Deal found 6/11

$1,211

Wed 6/1810:25 pmICN - IAD

2 stops31h 19mKLM

Wed 7/25:25 pmIAD - ICN

1 stop34h 00mKLM

Deal found 6/10

$1,423

Wed 6/186:00 pmICN - DCA

1 stop16h 48mAir Canada

Wed 8/2011:00 amDCA - ICN

1 stop17h 30mAir Canada

Deal found 6/12

$1,431

Thu 6/194:50 pmICN - BWI

1 stop25h 44mUnited Airlines

Fri 7/410:59 amBWI - ICN

2 stops28h 21mUnited Airlines

Deal found 6/12

$829

Thu 6/1912:45 pmICN - BWI

2 stops31h 19mMultiple Airlines

Fri 7/46:00 amBWI - ICN

2 stops33h 50mMultiple Airlines

Deal found 6/12

$1,188

Thu 6/1911:30 amICN - DCA

1 stop18h 27mUnited Airlines

Thu 8/145:00 pmDCA - ICN

2 stops22h 20mUnited Airlines

Deal found 6/11

$1,209

One-way flights from Seoul to Washington, D.C.
Search for one-way flight options from Seoul to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Wed 9/108:00 amICN - BWI

2 stops26h 02mMultiple Airlines

Deal found 6/9

$463

Sun 8/317:15 amICN - IAD

3 stops29h 54mMultiple Airlines

Deal found 6/10

$536

Wed 9/1712:45 pmICN - DCA

1 stop21h 14mMultiple Airlines

Deal found 6/11

$548

Tue 11/256:50 pmICN - IAD

2 stops38h 49mAir Canada

Deal found 6/10

$588

Thu 7/102:00 pmGMP - BWI

3 stops52h 33mMultiple Airlines

Deal found 6/10

$610

Fri 10/315:50 pmICN - DCA

2 stops34h 29mAir Canada

Deal found 6/11

$611

Sun 9/218:45 pmICN - IAD

1 stop34h 05mWestJet

Deal found 6/10

$661

Thu 7/102:00 pmGMP - DCA

3 stops44h 42mMultiple Airlines

Deal found 6/10

$681

Sun 11/211:40 amICN - IAD

2 stops32h 43mEVA Air

Deal found 6/12

$691

Sun 11/211:40 amICN - DCA

2 stops46h 20mEVA Air

Deal found 6/12

$691

Tue 7/86:55 pmGMP - IAD

3 stops58h 30mMultiple Airlines

Deal found 6/10

$693

Mon 10/207:45 pmICN - BWI

2 stops23h 26mEVA Air

Deal found 6/11

$693

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 9/21

8:45 pm-5:50 pm

1 stop34h 05m

Washington, D.C. Dulles Intl

Fri 9/26

6:45 pm-6:45 pm

1 stop35h 00m

$823

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/17

5:45 pm-8:59 am

2 stops28h 14m

Washington, D.C. Reagan-National

Wed 10/22

4:35 pm-4:05 pm

2 stops34h 30m

$855

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/17

5:45 pm-6:31 am

1 stop25h 46m

Washington, D.C. Dulles Intl

Wed 10/22

5:37 pm-4:15 pm

1 stop33h 38m

$857

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 8/27

8:40 pm-8:06 am

1 stop24h 26m

Baltimore/Washington

Wed 9/3

7:00 am-4:20 am

1 stop32h 20m

$872

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 9/8

11:30 am-5:31 pm

1 stop19h 01m

Baltimore/Washington

Fri 10/31

4:12 pm-4:40 am

2 stops23h 28m

$881

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 10/28

5:50 pm-6:23 am

2 stops25h 33m

Washington, D.C. Dulles Intl

Wed 11/5

6:11 pm-5:05 pm

2 stops56h 54m

$901

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 8/27

6:30 pm-3:45 pm

1 stop34h 15m

Washington, D.C. Dulles Intl

Fri 8/29

6:35 am-4:20 am

1 stop32h 45m

$908

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 7/1

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Mon 7/21

12:15 pm-10:20 pm

1 stop21h 05m

$998

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/10

10:25 am-10:55 am

Nonstop13h 30m

Washington, D.C. Dulles Intl

Wed 11/26

5:10 pm-5:45 pm

1 stop34h 35m

$1,045

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/24

2:40 pm-9:21 pm

1 stop19h 41m

Washington, D.C. Dulles Intl

Mon 12/8

5:30 pm-4:20 am

1 stop20h 50m

$1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 54 results

...

The best insider tips for Seoul to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seoul to Washington, D.C. trip

Airports

ICN

Plan for extra time at ICN as security lines can take up to 20 minutes, especially without fast track options.

IAD

Use the Silver Line Metro for a cheap and quick 40-minute ride from IAD to Washington, D.C.

Our travel experts

Gabriel Leigh

Expert on ICN

Ramsey Qubein

Expert on IAD

Best time to book a flight from Seoul to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

The price you pay for your flight from Seoul to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $241). Flying from Seoul to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

A simple way to save on the total cost of your ticket is to fly from Seoul to Washington, D.C. 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.

The most flights from SEL to WAS 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 Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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).

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Seoul to Washington, D.C., such as EVA Air, Korean Air and Japan Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,202 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

1,202 reviews

EVA Air

8.4

Very good

1,202 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

Korean Air

8.4

Very good

1,088 reviews

EVA Air

8.4

Very good

1,202 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

1,489 reviews

EVA Air

8.4

Very good

1,202 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

8.3

Very good

882 reviews

EVA Air

8.4

Very good

1,202 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

Asiana Airlines

8.2

Very good

440 reviews

EVA Air

8.4

Very good

1,202 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. round-trip?
Currently priced at $823, WestJet will fly you from Seoul to Washington, D.C. and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $855 and $881, respectively. WestJet is currently priced 23% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Seoul to Washington, D.C. one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $588. However, be on the lookout for offers from WestJet and EVA Air, as they are both options that can get you from Seoul to Washington, D.C. for a low price.
What are the most popular routes from Seoul to Washington, D.C.?
When deciding which route to take from Seoul to Washington, D.C. consider Incheon Intl - Washington, D.C. Dulles Intl, Seoul Gimpo Intl - Washington, D.C. Dulles Intl or Incheon Intl - Washington, D.C. Reagan-National as they are the most popular.
Can I find deals for flights from Seoul to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Seoul to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seoul to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Washington, D.C..
Can I find deals for business class flights from Seoul to Washington, D.C.?
Yes. Cheapflights offers flight deals from Seoul to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $241). Flying from Seoul to Washington, D.C. in March is currently the most expensive (average of $290). 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

Arlington

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

Dundalk

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Seoul to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$687	Average$795	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$688	Average$1,053	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$726	Average$935	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$882	Average$1,546	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,127	Average$1,447	FlexibilityNo cancel fee	On-time81%

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$463+ Cheap flights from Seoul (SEL) to Washington, D.C. (WAS)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seoul to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seoul to Washington, D.C. are usually found in February or December, booked 41 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

Cheap flight deals from Seoul to Washington, D.C.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Seoul to Washington, D.C.

Cheapest flights from Seoul to Washington, D.C.Explore the most affordable flight options available from Seoul to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Seoul to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

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

The best insider tips for Seoul to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seoul to Washington, D.C. trip

Airports

ICN

IAD

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Best time to book a flight from Seoul to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Seoul with our price prediction graph.

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Everything you need to know about your flight from Seoul to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Seoul to Washington, D.C.. Price data was last updated on June 9, 2025.

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

What is the cheapest time of day to fly from SEL to WAS?

Find hourly flight availability from Seoul to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Weekly flight availability from Seoul to Washington, D.C.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Seoul to Washington, D.C., such as EVA Air, Korean Air and Japan Airlines. Reviews also offer insight into each airline's 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 Washington, D.C.. 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. round-trip?

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

What are the most popular routes from Seoul to Washington, D.C.?

Can I find deals for flights from Seoul to Washington, D.C. that include hotel bookings?

How can I find direct flights from Seoul to Washington, D.C.?

Can I find deals for business class flights from Seoul to Washington, D.C.?

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

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Alternative routes for Seoul to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Seoul to Washington, D.C.

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Cheapest flights from Seoul to Washington, D.C.
Explore the most affordable flight options available from Seoul to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.