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

For as low as $1,274, Philippine Airlines can have you in Washington, D.C. from Seoul in 18h 29m. The distance between Seoul and Washington, D.C. is about 6953 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 $478, American Airlines will fly you from Seoul to Washington, D.C. and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and AIR PREMIA - these airlines can fly you to your destination from $494 and $888, respectively. American Airlines is currently priced 50% 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 - Baltimore/Washington or Incheon Intl - Washington, D.C. Reagan-National as they are the most popular.

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

On average you can expect to pay $2,138 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $712 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $991.

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 Delta (79%), Korean Air (79%) or AIR PREMIA (78%) 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, United Airlines or Korean Air.

Most accurate provider : When it comes to deals on Seoul-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 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 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.

$534+ 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 September 11, 2026.

Wed 10/289:55 pm -

2 stops38h 48m

Sun 11/111:35 pm -

Nonstop15h 50m

Deal found 9/9

$991

Sun 10/257:45 pm -

2 stops47h 35m

Sun 11/111:35 pm -

Nonstop15h 50m

Deal found 9/9

$1,040

Tue 10/209:25 pm -

2 stops48h 46m

Mon 10/2612:35 am -

Nonstop15h 50m

Deal found 9/7

$1,045

Fri 10/95:45 pm -

2 stops26h 58m

Fri 10/168:15 am -

2 stops42h 50m

Deal found 9/7

$1,070

Tue 9/2910:35 pm -

3 stops55h 43m

Wed 10/141:20 pm -

Nonstop15h 35m

Deal found 9/10

$1,074

Tue 10/205:45 pm -

2 stops30h 28m

Tue 10/271:19 pm -

2 stops37h 51m

Deal found 9/7

$1,076

Tue 10/205:45 pm -

2 stops28h 10m

Tue 10/2711:05 am -

2 stops40h 05m

Deal found 9/5

$1,081

Thu 10/155:45 pm -

2 stops30h 36m

Mon 10/1910:19 pm -

2 stops28h 46m

Deal found 9/6

$1,086

Wed 10/285:55 pm -

2 stops29h 34m

Wed 11/48:45 pm -

2 stops30h 25m

Deal found 9/9

$1,090

Tue 10/65:45 pm -

2 stops28h 10m

Tue 10/208:40 pm -

2 stops30h 25m

Deal found 9/9

$1,095

Mon 10/265:55 pm -

2 stops29h 34m

Thu 11/196:00 am -

2 stops22h 25m

Deal found 9/7

$1,105

Wed 10/215:45 pm -

2 stops28h 10m

Wed 10/288:45 pm -

1 stop31h 40m

Deal found 9/6

$1,107

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 September 11, 2026.

Mon 10/57:20 am -

2 stops35h 12m

Mon 10/196:00 am -

2 stops35h 00m

Deal found 9/8

$1,103

Mon 10/268:30 pm -

2 stops62h 15m

Mon 11/25:05 pm -

2 stops47h 00m

Deal found 9/10

$1,134

Sun 1/176:00 pm -

1 stop18h 29m

Wed 2/37:00 am -

1 stop19h 25m

Deal found 9/6

$1,274

Thu 10/157:00 pm -

2 stops23h 45m

Sun 10/186:00 am -

2 stops21h 50m

Deal found 9/8

$1,316

Mon 1/1812:20 pm -

1 stop34h 50m

Sat 2/2011:10 am -

1 stop21h 20m

Deal found 9/7

$1,342

Sat 11/1411:40 am -

1 stop23h 15m

Mon 3/111:55 pm -

1 stop28h 50m

Deal found 9/6

$1,347

Thu 11/58:00 pm -

1 stop23h 44m

Sun 11/87:05 am -

1 stop20h 30m

Deal found 9/5

$1,415

Thu 10/158:00 am -

2 stops37h 03m

Sun 10/2510:23 am -

2 stops22h 42m

Deal found 9/10

$1,448

Thu 11/510:15 am -

Nonstop13h 35m

Sun 11/811:50 am -

Nonstop15h 50m

Deal found 9/7

$1,773

Sun 1/1712:45 pm -

1 stop18h 04m

Mon 2/17:00 am -

1 stop19h 25m

Deal found 9/6

$1,274

Mon 10/266:40 pm -

1 stop24h 05m

Mon 11/27:00 am -

1 stop19h 20m

Deal found 9/10

$1,317

Thu 1/217:50 pm -

1 stop27h 20m

Sun 1/3111:10 am -

1 stop21h 20m

Deal found 9/6

$1,345

Fri 10/164:50 pm -

1 stop19h 03m

Sun 10/257:00 am -

1 stop19h 25m

Deal found 9/8

$1,275

Wed 1/206:45 pm -

2 stops19h 41m

Thu 1/287:10 am -

1 stop19h 10m

Deal found 9/6

$1,318

Thu 12/248:00 pm -

1 stop34h 06m

Sun 1/38:00 am -

1 stop19h 35m

Deal found 9/9

$1,450

Fri 9/257:55 pm -

1 stop27h 10m

Sun 10/1112:15 pm -

1 stop33h 50m

Deal found 9/7

$1,372

Mon 11/212:45 pm -

1 stop18h 00m

Fri 11/67:00 am -

1 stop19h 25m

Deal found 9/8

$1,277

Wed 10/218:00 am -

2 stops21h 27m

Wed 10/2810:13 am -

2 stops22h 52m

Deal found 9/6

$1,550

Fri 10/168:00 am -

2 stops37h 03m

Sun 10/2510:23 am -

2 stops22h 42m

Deal found 9/8

$1,562

Fri 1/228:35 pm -

1 stop17h 11m

Tue 2/27:30 am -

1 stop18h 20m

Deal found 9/6

$1,318

Mon 10/57:35 pm -

1 stop23h 05m

Fri 10/97:24 pm -

2 stops33h 06m

Deal found 9/7

$1,481

Mon 10/57:55 pm -

1 stop27h 10m

Mon 10/193:47 pm -

2 stops30h 18m

Deal found 9/8

$1,375

Mon 1/1812:45 pm -

1 stop23h 44m

Mon 2/17:00 am -

1 stop19h 25m

Deal found 9/6

$1,277

Mon 10/268:15 am -

2 stops22h 48m

Mon 11/28:39 am -

2 stops23h 26m

Deal found 9/10

$1,565

Thu 10/157:15 pm -

2 stops32h 03m

Mon 10/196:42 am -

2 stops25h 33m

Deal found 9/6

$1,580

Mon 1/186:45 pm -

2 stops25h 15m

Sat 2/205:30 pm -

2 stops32h 20m

Deal found 9/7

$1,318

Wed 10/2810:15 am -

Nonstop13h 35m

Wed 11/47:23 am -

1 stop18h 27m

Deal found 9/10

$1,808

Thu 12/248:00 pm -

2 stops38h 00m

Fri 1/18:00 am -

1 stop19h 35m

Deal found 9/10

$1,510

Thu 10/1512:40 pm -

1 stop34h 25m

Sun 10/258:23 am -

2 stops37h 47m

Deal found 9/10

$1,385

Fri 1/226:30 pm -

1 stop17h 19m

Wed 2/37:00 am -

1 stop19h 25m

Deal found 9/6

$1,277

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated September 11, 2026 and is based on user searches.

Tue 9/2910:35 pm -

3 stops55h 43m

Wed 10/141:20 pm -

Nonstop15h 35m

Deal found 9/10

$1,074

Tue 10/65:45 pm -

2 stops28h 10m

Tue 10/208:40 pm -

2 stops30h 25m

Deal found 9/9

$1,095

Fri 10/95:45 pm -

2 stops26h 58m

Fri 10/168:15 am -

2 stops42h 50m

Deal found 9/7

$1,070

Thu 10/155:45 pm -

2 stops30h 36m

Mon 10/1910:19 pm -

2 stops28h 46m

Deal found 9/6

$1,086

Tue 10/209:25 pm -

2 stops48h 46m

Mon 10/2612:35 am -

Nonstop15h 50m

Deal found 9/7

$1,045

Tue 10/205:45 pm -

2 stops30h 28m

Tue 10/271:19 pm -

2 stops37h 51m

Deal found 9/7

$1,076

Tue 10/205:45 pm -

2 stops28h 10m

Tue 10/2711:05 am -

2 stops40h 05m

Deal found 9/5

$1,081

Wed 10/215:45 pm -

2 stops28h 10m

Wed 10/288:45 pm -

1 stop31h 40m

Deal found 9/6

$1,107

Sun 10/257:45 pm -

2 stops47h 35m

Sun 11/111:35 pm -

Nonstop15h 50m

Deal found 9/9

$1,040

Mon 10/265:55 pm -

2 stops29h 34m

Thu 11/196:00 am -

2 stops22h 25m

Deal found 9/7

$1,105

Wed 10/289:55 pm -

2 stops38h 48m

Sun 11/111:35 pm -

Nonstop15h 50m

Deal found 9/9

$991

Wed 10/285:55 pm -

2 stops29h 34m

Wed 11/118:45 pm -

2 stops30h 25m

Deal found 9/9

$1,090

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 September 11, 2026.

Wed 11/119:55 pm -

3 stops39h 48m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$534

Tue 11/179:55 pm -

2 stops32h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$555

Mon 10/59:25 pm -

2 stops39h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$556

Tue 10/69:25 pm -

2 stops56h 48m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$557

Tue 10/139:25 pm -

2 stops39h 56m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$562

Tue 10/139:25 pm -

2 stops40h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$566

Tue 10/69:25 pm -

2 stops37h 33m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$567

Tue 11/109:55 pm -

2 stops49h 18m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/6

$567

Mon 9/289:25 pm -

2 stops37h 32m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/7

$572

Mon 9/289:25 pm -

2 stops39h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/7

$573

Mon 11/168:35 am -

3 stops53h 08m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/6

$576

Fri 10/169:25 pm -

2 stops49h 02m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$579

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$991 (Kiwi.com)
One-way from	$534 (Kiwi.com)
Popular in	March
Cheapest in	November
Average price	$770
Good round-trip deal	$1,128 or less
Good one-way deal	$1,059 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. 3% potential increase in price ($32 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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 - IAD Washington, D.C. Dulles Intl

ICNIAD

Incheon Intl

Wed 10/7

7:20 am-5:32 am

2 stops35h 12m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$649

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Thu 10/15

8:30 pm-9:45 pm

2 stops62h 15m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$649

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Thu 10/1

7:20 am-8:00 am

2 stops37h 40m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$654

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Tue 11/10

1:30 pm-9:00 pm

2 stops45h 30m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$659

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Wed 11/18

7:30 am-10:29 pm

2 stops28h 59m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$659

IncheonWashington, D.C.

ICN Incheon Intl - IAD Washington, D.C. Dulles Intl

ICNIAD

Incheon Intl

Wed 11/11

7:30 am-5:38 am

2 stops36h 08m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$666

SeoulBaltimore

GMP Seoul Gimpo Intl - BWI Baltimore/Washington

GMPBWI

Seoul Gimpo Intl

Tue 10/6

5:05 pm-8:30 pm

3 stops40h 25m

Baltimore/Washington

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$667

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Thu 10/22

5:45 pm-8:55 am

2 stops28h 10m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$721

SeoulWashington, D.C.

GMP Seoul Gimpo Intl - IAD Washington, D.C. Dulles Intl

GMPIAD

Seoul Gimpo Intl

Mon 10/5

10:50 am-7:30 pm

3 stops45h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$722

IncheonWashington, D.C.

ICN Incheon Intl - IAD Washington, D.C. Dulles Intl

ICNIAD

Incheon Intl

Sun 9/13

8:10 am-10:17 am

3 stops39h 07m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$734

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

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 September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 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 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-IAD

ICN-DCA

GMP-DCA

GMP-BWI

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-IAD

ICN-DCA

GMP-DCA

GMP-BWI

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

Currently, November is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $509). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $1,514). 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 Monday (3 on average). You will have fewer flight options on Tuesday, 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 above average for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $704 and $842 in October.
The cheapest round-trip price found within the last 5 days was $991 on Multiple Airlines (Oct 28-Nov 1).

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 36 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,AIR PREMIA, andAsiana Airlines 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

1,221 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

1,221 reviews

Korean Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

AIR PREMIA

8.1

Very good

106 reviews

Korean Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Asiana Airlines

8.1

Very good

561 reviews

Korean Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Delta

7.8

Good

8,556 reviews

Korean Air

8.4

Very good

1,221 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Air Canada

7.1

Good

11,611 reviews

Korean Air

8.4

Very good

1,221 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 $1,274, Philippine Airlines can have you in Washington, D.C. from Seoul in 18h 29m. The distance between Seoul and Washington, D.C. is about 6953 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 $478, American Airlines will fly you from Seoul to Washington, D.C. and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and AIR PREMIA - these airlines can fly you to your destination from $494 and $888, respectively. American Airlines is currently priced 50% 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 - Baltimore/Washington or Incheon Intl - Washington, D.C. Reagan-National 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 Delta (79%), Korean Air (79%) or AIR PREMIA (78%) 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 $2,138 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $712 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $991.
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, November is the cheapest month in which you can book a flight from Seoul to Washington, D.C. (average of $509). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $1,514). 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 Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$478	Average$723	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$494	Average$876	FlexibilityNo cancel fee	On-time69%
AIR PREMIA	Cheapest$888	Average$1,171	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,257	Average$1,569	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$1,297	Average$1,950	FlexibilityNo cancel fee	On-timeN/A

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$534+ 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 11/11. 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 September 11, 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 September 11, 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 September 11, 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 September 11, 2026.

Last-minute flights from Seoul to Washington, D.C.Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated September 11, 2026 and is based on user searches.

Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated September 11, 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 September 11, 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 September 11, 2026.

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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 September.

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 September 11, 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 Monday (3 on average). You will have fewer flight options on Tuesday, 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 above average for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $704 and $842 in October.The cheapest round-trip price found within the last 5 days was $991 on Multiple Airlines (Oct 28-Nov 1).

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 36 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,AIR PREMIA, andAsiana Airlines 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 September 11, 2026.

Other flights from Seoul

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Other flights 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 September 11, 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 September 11, 2026.

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated September 11, 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 September 11, 2026.

Seoul to Washington, D.C. flights typically cost between $704 and $842 in October.
The cheapest round-trip price found within the last 5 days was $991 on Multiple Airlines (Oct 28-Nov 1).