How long is the flight from Seoul to Washington, D.C.?

For as low as $1,556, United Airlines can have you in Washington, D.C. from Seoul in 30h 15m. The distance between Seoul and Washington, D.C. is about 6939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Currently priced at $490, United Airlines will fly you from Seoul to Washington, D.C. and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from AIR PREMIA and Korean Air - these airlines can fly you to your destination from $876 and $1,257, respectively. United Airlines is currently priced 51% 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 PREMIA, with whom users have recently found tickets for as low as $435. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Seoul to Washington, D.C. for a low price.

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.

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).

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, Incheon Intl - Washington, D.C. Reagan-National or Incheon Intl - Baltimore/Washington as they are the most popular.

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

On average you can expect to pay $1,994 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $688 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $1,066.

What are the most reliable airlines from Seoul to Washington, D.C.?

No one likes to see their flight delayed. When booking a flight from Seoul to Washington, D.C. consider choosing AIR PREMIA (97%), Delta (90%) or Korean Air (90%) as they are the most reliable in getting you off to your destination on time.

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: AIR PREMIA, Korean Air or Delta.

Most accurate provider : When it comes to deals on Seoul-Washington, D.C. flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seoul-Washington, D.C. flights, Cheapflights users trust AranGrant the most. AranGrant 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. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$378+ Cheap Flights from Seoul to Washington, D.C.

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

Cheapest

Best

Last-minute

One-way

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 October 26, 2026.

Fri 11/201:10 pm -

1 stop19h 20m

Fri 11/2711:35 pm -

Nonstop15h 50m

Deal found 10/21

$877

Fri 12/181:10 pm -

1 stop19h 20m

Sun 1/1711:35 pm -

Nonstop15h 50m

Deal found 10/25

$901

Fri 12/181:10 pm -

1 stop19h 20m

Thu 1/1410:57 pm -

2 stops40h 43m

Deal found 10/25

$924

Mon 11/239:55 pm -

1 stop34h 35m

Sun 12/611:35 pm -

Nonstop15h 50m

Deal found 10/26

$935

Tue 12/151:10 pm -

1 stop19h 20m

Fri 1/1511:35 pm -

Nonstop15h 50m

Deal found 10/25

$980

Tue 11/36:55 am -

2 stops25h 35m

Fri 11/1310:00 pm -

1 stop32h 55m

Deal found 10/23

$991

Fri 12/181:10 pm -

1 stop19h 20m

Thu 12/315:30 am -

2 stops44h 50m

Deal found 10/25

$996

Mon 11/210:10 pm -

2 stops34h 20m

Fri 11/1310:00 pm -

1 stop32h 55m

Deal found 10/23

$1,001

Fri 12/117:45 pm -

2 stops35h 10m

Thu 12/319:30 am -

1 stop40h 50m

Deal found 10/22

$1,008

Fri 12/181:10 pm -

1 stop19h 20m

Fri 1/1511:35 pm -

Nonstop15h 50m

Deal found 10/25

$1,010

Fri 12/181:10 pm -

1 stop19h 20m

Wed 1/1311:35 pm -

Nonstop15h 50m

Deal found 10/25

$1,020

Thu 10/297:00 pm -

2 stops52h 00m

Sun 1/1711:35 pm -

Nonstop15h 50m

Deal found 10/24

$1,024

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 October 26, 2026.

Thu 12/176:55 pm -

2 stops41h 04m

Tue 2/2311:05 am -

2 stops40h 05m

Deal found 10/21

$1,122

Fri 11/612:45 pm -

1 stop30h 58m

Mon 11/96:34 pm -

1 stop21h 06m

Deal found 10/23

$1,168

Mon 11/98:35 pm -

1 stop28h 07m

Mon 11/237:15 am -

1 stop19h 05m

Deal found 10/24

$1,181

Thu 12/178:00 pm -

1 stop23h 45m

Tue 2/235:38 pm -

1 stop33h 57m

Deal found 10/21

$1,256

Sat 11/217:50 pm -

2 stops30h 15m

Thu 11/2610:30 am -

2 stops34h 40m

Deal found 10/21

$1,556

Wed 2/178:15 am -

2 stops21h 01m

Wed 2/175:24 pm -

2 stops34h 56m

Deal found 10/23

$1,610

Mon 11/912:05 pm -

2 stops24h 10m

Mon 11/2310:18 am -

2 stops21h 47m

Deal found 10/24

$1,779

Sat 1/306:55 pm -

2 stops29h 34m

Sun 2/78:45 pm -

2 stops30h 25m

Deal found 10/22

$1,129

Wed 12/26:00 pm -

2 stops29h 44m

Wed 2/38:15 am -

2 stops31h 25m

Deal found 10/25

$1,169

Sat 11/216:40 pm -

1 stop25h 20m

Thu 11/267:01 am -

1 stop18h 49m

Deal found 10/21

$1,238

Sat 2/68:10 pm -

1 stop34h 25m

Tue 2/95:37 pm -

2 stops33h 33m

Deal found 10/21

$1,134

Wed 11/1112:45 pm -

2 stops25h 52m

Wed 11/188:23 am -

2 stops31h 17m

Deal found 10/25

$1,169

Sat 12/196:55 pm -

2 stops28h 03m

Wed 1/66:55 pm -

2 stops32h 15m

Deal found 10/26

$1,137

Mon 1/188:00 pm -

1 stop34h 27m

Thu 1/285:30 pm -

1 stop34h 05m

Deal found 10/23

$1,415

Thu 12/176:00 pm -

1 stop25h 40m

Tue 2/236:31 pm -

1 stop21h 09m

Deal found 10/21

$1,172

Tue 11/106:00 pm -

2 stops34h 06m

Tue 12/86:35 pm -

1 stop21h 05m

Deal found 10/22

$1,179

Sat 2/66:55 pm -

2 stops31h 24m

Tue 2/96:55 pm -

2 stops32h 15m

Deal found 10/21

$1,201

Mon 11/238:15 am -

2 stops21h 51m

Sun 12/65:16 pm -

2 stops27h 29m

Deal found 10/26

$1,657

Wed 12/236:30 pm -

1 stop18h 51m

Wed 12/3012:35 pm -

1 stop27h 05m

Deal found 10/21

$1,182

Fri 2/198:15 am -

2 stops22h 20m

Mon 2/226:00 am -

2 stops22h 20m

Deal found 10/21

$1,658

Thu 12/176:55 pm -

2 stops35h 06m

Tue 2/239:55 am -

1 stop18h 30m

Deal found 10/21

$1,252

Mon 12/218:15 am -

2 stops20h 44m

Fri 1/110:40 am -

2 stops21h 25m

Deal found 10/26

$1,866

Mon 12/2112:45 pm -

1 stop33h 25m

Fri 1/16:00 am -

1 stop20h 15m

Deal found 10/24

$1,184

Tue 4/67:15 pm -

2 stops34h 31m

Mon 4/196:10 am -

2 stops26h 05m

Deal found 10/26

$1,672

Fri 11/612:45 pm -

2 stops20h 30m

Mon 11/94:09 pm -

2 stops23h 31m

Deal found 10/23

$1,185

Wed 11/256:00 pm -

1 stop39h 01m

Mon 11/305:38 pm -

1 stop22h 02m

Deal found 10/25

$1,186

Sun 12/1312:45 pm -

1 stop18h 08m

Fri 1/155:54 pm -

1 stop21h 46m

Deal found 10/25

$1,186

Fri 12/186:30 pm -

1 stop17h 19m

Wed 1/135:54 pm -

1 stop21h 46m

Deal found 10/25

$1,186

Mon 12/146:00 pm -

1 stop18h 55m

Fri 1/157:00 am -

1 stop19h 25m

Deal found 10/25

$1,186

Fri 12/1812:45 pm -

1 stop23h 45m

Wed 1/67:00 am -

1 stop19h 25m

Deal found 10/25

$1,194

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated October 26, 2026 and is based on user searches.

Tue 10/274:45 pm -

2 stops54h 15m

Sun 1/1711:35 pm -

Nonstop15h 50m

Deal found 10/24

$1,058

Tue 10/278:40 pm -

3 stops36h 31m

Fri 1/2211:35 pm -

Nonstop15h 50m

Deal found 10/24

$1,061

Wed 10/287:00 pm -

2 stops52h 00m

Wed 1/2011:35 pm -

Nonstop15h 50m

Deal found 10/24

$1,041

Thu 10/297:00 pm -

2 stops52h 00m

Sun 1/1711:35 pm -

Nonstop15h 50m

Deal found 10/24

$1,024

Mon 11/210:10 pm -

2 stops34h 20m

Fri 11/1310:00 pm -

1 stop32h 55m

Deal found 10/23

$1,001

Tue 11/36:55 am -

2 stops25h 35m

Fri 11/1310:00 pm -

1 stop32h 55m

Deal found 10/23

$991

Mon 11/96:15 pm -

3 stops38h 15m

Mon 11/2311:35 pm -

Nonstop15h 50m

Deal found 10/25

$1,076

Mon 11/96:55 pm -

2 stops28h 03m

Mon 11/238:45 pm -

2 stops30h 25m

Deal found 10/24

$1,123

Fri 11/201:10 pm -

1 stop19h 20m

Fri 11/2711:35 pm -

Nonstop15h 50m

Deal found 10/21

$877

Mon 11/239:55 pm -

1 stop34h 35m

Sun 12/611:35 pm -

Nonstop15h 50m

Deal found 10/26

$935

Mon 11/234:30 pm -

1 stop40h 00m

Mon 11/3011:55 pm -

1 stop20h 35m

Deal found 10/23

$1,066

Tue 11/241:10 pm -

1 stop19h 20m

Tue 12/18:57 pm -

2 stops41h 53m

Deal found 10/24

$1,038

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 October 26, 2026.

Tue 12/151:10 pm -

1 stop19h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$378

Tue 12/81:10 pm -

1 stop19h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/22

$379

Fri 12/41:10 pm -

1 stop19h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$380

Mon 12/79:55 pm -

1 stop34h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/23

$387

Fri 12/181:10 pm -

1 stop19h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$397

Thu 12/39:55 pm -

1 stop34h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/25

$399

Sun 12/137:45 pm -

3 stops54h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/24

$444

Mon 12/147:45 pm -

3 stops30h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/24

$449

Mon 12/77:45 pm -

3 stops30h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$463

Sun 12/207:45 pm -

2 stops48h 22m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/24

$467

Fri 12/117:45 pm -

3 stops30h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$475

Mon 12/77:45 pm -

3 stops53h 26m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$478

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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$877 (Kiwi.com)
One-way from	$378 (SmartFares)
Popular in	March
Cheapest in	November
Average price	$806
Good round-trip deal	$1,003 or less
Good one-way deal	$700 or less

Provider with most accurate pricing for Seoul (SEL)-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seoul (SEL)-Washington, D.C. (WAS) flights.

Search Deals

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. 0% potential increase in price ($1 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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).

Search Deals

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

Cheapest round-trip

IncheonWashington, D.C.

ICN Incheon Intl - DCA Washington, D.C. Reagan-National

ICNDCA

Incheon Intl

Wed 12/23

6:55 pm-10:29 am

2 stops29h 34m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$688

IncheonWashington, D.C.

ICN Incheon Intl - DCA Washington, D.C. Reagan-National

ICNDCA

Incheon Intl

Sat 1/30

6:55 pm-10:29 am

2 stops29h 34m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$696

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Fri 12/18

12:45 pm-11:59 pm

2 stops25h 14m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$716

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Wed 12/16

6:00 pm-6:55 am

1 stop26h 55m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$716

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Sun 12/20

12:45 pm-11:14 pm

2 stops24h 29m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$716

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Thu 12/17

12:45 pm-12:48 am

3 stops26h 03m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$716

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Tue 12/15

12:45 pm-6:52 am

1 stop32h 07m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$716

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Tue 12/22

12:45 pm-12:48 am

2 stops26h 03m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$717

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Sun 12/6

12:45 pm-6:52 am

1 stop32h 07m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$717

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Sun 1/31

12:45 pm-6:52 am

1 stop32h 07m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from Seoul to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Washington, D.C. in October.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy2 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust 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. flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seoul-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seoul-Washington, D.C. flights, Cheapflights users trust AranGrant the most. AranGrant 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. 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 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.

SEL-WAS

ICN-DCA

ICN-BWI

ICN-IAD

GMP-DCA

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.

SEL-WAS

ICN-DCA

ICN-BWI

ICN-IAD

GMP-DCA

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

Currently, October is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $880). Flying from Seoul to Washington, D.C. in July is currently the most expensive (average of $1,512). 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?

When flying from Seoul to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The most flights from SEL to WAS are scheduled on a Friday (3 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.?

Airfare is typical for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $652 and $1,004 in November.
The cheapest round-trip price found within the last 5 days was $877 on Multiple Airlines (Nov 20-Nov 27).

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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Our travel experts

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

See what other customers who have flown with Korean Air,Asiana Airlines, andAIR PREMIA from Seoul to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,219 reviews

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

1,219 reviews

Korean Air

8.4

Very good

1,219 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Asiana Airlines

8.1

Very good

567 reviews

Korean Air

8.4

Very good

1,219 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

AIR PREMIA

8.0

Very good

112 reviews

Korean Air

8.4

Very good

1,219 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Delta

7.8

Good

8,681 reviews

Korean Air

8.4

Very good

1,219 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Air Canada

7.1

Good

11,819 reviews

Korean Air

8.4

Very good

1,219 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Related info for your journey

How long is the flight from Seoul to Washington, D.C.?
For as low as $1,556, United Airlines can have you in Washington, D.C. from Seoul in 30h 15m. The distance between Seoul and Washington, D.C. is about 6939 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Seoul to Washington, D.C. round-trip?
Currently priced at $490, United Airlines will fly you from Seoul to Washington, D.C. and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from AIR PREMIA and Korean Air - these airlines can fly you to your destination from $876 and $1,257, respectively. United Airlines is currently priced 51% 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 PREMIA, with whom users have recently found tickets for as low as $435. However, be on the lookout for offers from American Airlines and United Airlines, 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, Incheon Intl - Washington, D.C. Reagan-National or Incheon Intl - Baltimore/Washington as they are the most popular.
What are the most reliable airlines from Seoul to Washington, D.C.?
No one likes to see their flight delayed. When booking a flight from Seoul to Washington, D.C. consider choosing AIR PREMIA (97%), Delta (90%) or Korean Air (90%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Seoul to Washington, D.C.?
On average you can expect to pay $1,994 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $688 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $1,066.
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, October is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $880). Flying from Seoul to Washington, D.C. in July is currently the most expensive (average of $1,512). 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 4 airlines flying from Seoul to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$490	Average$901	FlexibilityNo cancel fee	On-time69%
AIR PREMIA	Cheapest$876	Average$1,207	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$1,170	Average$1,718	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,257	Average$1,691	FlexibilityNo cancel fee	On-time81%

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$378+ Cheap flights from Seoul (SEL) to Washington, D.C. (WAS)

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.

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Cheap 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 October 26, 2026.

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 October 26, 2026.

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 October 26, 2026.

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 October 26, 2026.

Last-minute flights from Seoul to Washington, D.C.Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated October 26, 2026 and is based on user searches.

Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated October 26, 2026 and is based on user searches.

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 October 26, 2026.

Search for one-way flight options from Seoul to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.

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

Compare providers for flights from Seoul to Washington, D.C.

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 Washington, D.C. in October.

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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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 October 26, 2026.

When flying from Seoul to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The most flights from SEL to WAS are scheduled on a Friday (3 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.?

Airfare is typical for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $652 and $1,004 in November.The cheapest round-trip price found within the last 5 days was $877 on Multiple Airlines (Nov 20-Nov 27).

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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

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Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Korean Air,Asiana Airlines, andAIR PREMIA from Seoul to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Seoul to Washington, D.C.?

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.?

What are the most reliable airlines from Seoul to Washington, D.C.?

What are the cheapest flights 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.?

Traveling to a place near Washington, D.C.?

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Alternative routes for Seoul to Washington, D.C.

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Search flights from Seoul to Washington, D.C. by cabin class

Find flights from Seoul to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Seoul and Washington, D.C. flights

Browse other Seoul and Washington, D.C. flight options. Last updated on October 26, 2026.

Other flights from Seoul

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Seoul to Washington, D.C. flights

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Other flights to Washington, D.C.

Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.

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 October 26, 2026.

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 October 26, 2026.

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated October 26, 2026 and is based on user searches.

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 October 26, 2026.

Seoul to Washington, D.C. flights typically cost between $652 and $1,004 in November.
The cheapest round-trip price found within the last 5 days was $877 on Multiple Airlines (Nov 20-Nov 27).