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

For as low as $1,142, American Airlines can have you in Washington, D.C. from Seoul in 13h 30m. 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 $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 Delta - these airlines can fly you to your destination from $508 and $853, respectively. American Airlines is currently priced 53% 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 $1,760 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $420 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $750.

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 (100%), 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 United Airlines.

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.

$483+ 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 August 5, 2026.

Mi 12/236:55 pm -

2 stops30h 06m

So 1/311:20 pm -

2 stops37h 50m

Deal found 7/31

$661

Do 12/176:55 pm -

2 stops41h 04m

Di 2/2311:05 am -

2 stops40h 05m

Deal found 7/31

$661

Mo 9/285:45 pm -

2 stops30h 28m

Di 11/31:19 pm -

2 stops37h 51m

Deal found 8/2

$664

Fr 11/136:55 pm -

2 stops41h 04m

Do 11/196:00 am -

2 stops45h 10m

Deal found 8/2

$664

Mo 9/145:45 pm -

2 stops30h 28m

Mo 9/218:29 am -

1 stop18h 36m

Deal found 8/1

$665

Mi 12/236:55 pm -

2 stops28h 03m

Di 2/24:00 pm -

2 stops35h 10m

Deal found 7/31

$669

Sa 10/35:45 pm -

2 stops30h 36m

Sa 10/105:40 pm -

2 stops33h 25m

Deal found 8/1

$673

Mi 12/236:55 pm -

2 stops28h 03m

So 1/318:45 pm -

2 stops30h 25m

Deal found 7/31

$674

Sa 12/196:55 pm -

2 stops28h 03m

Sa 1/168:45 pm -

2 stops30h 25m

Deal found 8/1

$678

Do 12/176:55 pm -

2 stops35h 18m

Di 2/239:55 am -

1 stop18h 30m

Deal found 7/31

$688

Mo 12/218:10 pm -

1 stop33h 35m

Mi 1/65:50 pm -

2 stops33h 20m

Deal found 8/1

$690

Mo 12/216:55 pm -

2 stops30h 51m

Mo 2/154:30 pm -

1 stop35h 55m

Deal found 8/3

$691

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 August 5, 2026.

Mo 9/215:50 pm -

1 stop18h 09m

Fr 9/257:26 am -

1 stop19h 19m

Deal found 7/31

$972

Sa 1/3012:45 pm -

1 stop18h 32m

So 2/76:15 am -

1 stop20h 00m

Deal found 8/3

$1,047

Do 12/248:00 pm -

1 stop34h 06m

So 2/148:00 am -

1 stop19h 35m

Deal found 8/2

$1,094

Fr 10/309:05 pm -

Nonstop13h 30m

Mo 11/211:35 pm -

Nonstop15h 50m

Deal found 7/31

$1,142

Mi 12/236:00 pm -

1 stop25h 52m

So 1/316:31 pm -

1 stop21h 09m

Deal found 7/31

$1,167

Mo 9/78:00 am -

2 stops21h 29m

Mo 9/216:00 am -

2 stops22h 55m

Deal found 8/3

$1,191

Sa 1/3011:40 am -

1 stop23h 15m

Mo 2/811:55 pm -

1 stop28h 50m

Deal found 7/31

$1,277

So 11/112:25 pm -

1 stop34h 45m

Di 12/111:10 am -

1 stop21h 20m

Deal found 8/4

$1,303

Fr 12/1810:15 am -

Nonstop13h 35m

Mo 1/46:30 pm -

1 stop33h 15m

Deal found 8/3

$1,324

So 9/612:00 pm -

2 stops30h 40m

Do 9/105:57 pm -

2 stops28h 03m

Deal found 8/4

$1,388

Mo 2/110:15 am -

Nonstop13h 35m

Mo 2/87:30 am -

1 stop18h 20m

Deal found 8/3

$1,567

So 8/305:50 pm -

1 stop28h 09m

So 9/65:12 pm -

1 stop33h 33m

Deal found 8/3

$1,032

Mo 2/112:45 pm -

1 stop18h 32m

Mo 2/86:31 pm -

1 stop21h 09m

Deal found 8/4

$1,055

Mo 12/2112:45 pm -

2 stops25h 53m

Mo 2/156:17 am -

2 stops33h 23m

Deal found 8/4

$1,056

So 9/611:30 am -

1 stop17h 48m

Do 9/103:15 pm -

2 stops35h 05m

Deal found 8/5

$1,056

So 9/1310:25 am -

Nonstop13h 40m

Mo 9/286:26 pm -

1 stop34h 24m

Deal found 7/31

$1,334

Mo 12/218:00 pm -

1 stop34h 06m

Sa 2/135:04 pm -

1 stop34h 31m

Deal found 8/2

$1,336

Di 12/157:50 pm -

1 stop27h 20m

Mi 1/611:10 am -

1 stop21h 20m

Deal found 8/3

$1,388

So 10/187:15 pm -

2 stops40h 44m

Mo 10/267:15 am -

2 stops25h 50m

Deal found 8/1

$1,403

Do 11/1912:05 pm -

2 stops45h 10m

Mo 11/235:12 pm -

2 stops38h 53m

Deal found 8/1

$1,403

Fr 12/186:30 pm -

1 stop17h 19m

Mi 1/67:00 am -

1 stop19h 25m

Deal found 8/3

$1,056

Di 12/227:00 pm -

1 stop39h 55m

Mo 2/1511:55 pm -

1 stop29h 20m

Deal found 8/2

$1,473

So 12/206:30 pm -

1 stop17h 19m

So 1/37:00 am -

1 stop19h 25m

Deal found 8/3

$1,056

Di 12/228:00 am -

2 stops24h 20m

Di 2/166:00 am -

2 stops26h 05m

Deal found 8/4

$1,417

So 9/67:55 pm -

1 stop27h 10m

Do 9/1012:15 pm -

1 stop21h 05m

Deal found 8/5

$1,420

So 10/117:15 pm -

2 stops32h 51m

Mo 12/77:17 am -

2 stops24h 48m

Deal found 8/4

$1,425

So 9/610:25 am -

Nonstop13h 40m

Do 9/106:26 pm -

1 stop34h 24m

Deal found 8/3

$1,481

Fr 12/258:00 pm -

2 stops35h 56m

Sa 1/28:00 am -

1 stop19h 35m

Deal found 8/5

$1,498

Di 12/156:00 pm -

1 stop17h 53m

Do 12/317:00 am -

1 stop19h 25m

Deal found 8/3

$1,056

Mo 9/77:55 pm -

1 stop27h 10m

Mi 9/912:15 pm -

1 stop21h 05m

Deal found 7/31

$1,423

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated August 5, 2026 and is based on user searches.

Mi 9/210:25 am -

2 stops24h 23m

Mi 9/96:55 pm -

2 stops32h 10m

Deal found 8/3

$766

Mi 9/210:25 am -

2 stops24h 23m

Fr 9/114:20 pm -

2 stops34h 45m

Deal found 7/31

$817

Sa 9/55:45 pm -

2 stops30h 28m

So 9/135:40 pm -

2 stops33h 25m

Deal found 7/31

$705

Sa 9/55:45 pm -

2 stops41h 03m

So 9/138:40 pm -

1 stop31h 50m

Deal found 7/31

$788

Sa 9/55:45 pm -

2 stops34h 53m

Mi 9/96:00 am -

2 stops22h 30m

Deal found 8/3

$799

Mo 9/75:50 pm -

1 stop28h 09m

Mo 9/218:26 am -

1 stop42h 19m

Deal found 8/5

$850

Mi 9/95:45 pm -

2 stops40h 33m

So 12/61:20 pm -

2 stops37h 50m

Deal found 8/3

$714

So 9/135:45 pm -

2 stops26h 58m

Mo 9/2810:10 pm -

2 stops28h 55m

Deal found 7/31

$709

Mo 9/145:45 pm -

1 stop25h 45m

Mo 9/218:29 am -

1 stop18h 36m

Deal found 8/1

$661

Mi 9/167:05 pm -

1 stop32h 17m

Mi 10/145:40 pm -

2 stops33h 25m

Deal found 8/2

$695

Fr 9/185:45 pm -

2 stops28h 10m

Fr 9/256:59 am -

1 stop21h 31m

Deal found 8/4

$738

Mo 9/285:45 pm -

2 stops30h 28m

Di 11/31:19 pm -

2 stops37h 51m

Deal found 8/2

$664

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 August 5, 2026.

Fr 10/238:45 pm -

2 stops27h 00m

Deal found 8/3

$483

Do 10/158:45 pm -

2 stops27h 00m

Deal found 8/3

$484

So 10/188:45 pm -

2 stops31h 25m

Deal found 8/4

$486

Fr 10/168:45 pm -

2 stops49h 12m

Deal found 8/1

$498

Fr 10/168:45 pm -

2 stops25h 10m

Deal found 8/1

$508

Mo 10/198:45 pm -

2 stops32h 27m

Deal found 8/4

$512

Sa 9/126:00 pm -

2 stops25h 20m

Deal found 7/31

$512

Di 10/208:45 pm -

2 stops32h 27m

Deal found 8/4

$513

Fr 10/168:45 pm -

2 stops33h 51m

Deal found 8/1

$513

Sa 10/178:45 pm -

2 stops40h 59m

Deal found 8/4

$515

Mi 9/97:15 pm -

2 stops24h 05m

Deal found 8/3

$516

Mi 9/97:15 pm -

3 stops58h 44m

Deal found 8/3

$532

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$661 (Air Canada)
One-way from	$483 (Kiwi.com)
Popular in	August
Cheapest in	November
Average price	$1,786
Good round-trip deal	$1,070 or less
Good one-way deal	$437 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. 18% potential increase in price ($238 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($69 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 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

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Mo 9/21

5:50 pm-10:59 pm

1 stop18h 09m

Baltimore/Washington

Fr 9/25

7:26 am-3:45 pm

1 stop19h 19m

$972

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

So 8/30

5:50 pm-8:59 am

1 stop28h 09m

Washington, D.C. Reagan-National

So 9/6

5:12 pm-3:45 pm

1 stop33h 33m

$1,032

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Sa 1/30

12:45 pm-5:17 pm

1 stop18h 32m

Baltimore/Washington

So 2/7

6:15 am-4:15 pm

1 stop20h 00m

$1,047

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Mo 2/1

12:45 pm-5:17 pm

1 stop18h 32m

Baltimore/Washington

Mo 2/8

6:31 pm-5:40 am

1 stop21h 09m

$1,055

IncheonBaltimore

ICN Incheon Intl - BWI Baltimore/Washington

ICNBWI

Incheon Intl

Mo 12/21

12:45 pm-12:38 am

2 stops25h 53m

Baltimore/Washington

Mo 2/15

6:17 am-5:40 am

2 stops33h 23m

$1,056

IncheonWashington, D.C.

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

ICNIAD

Incheon Intl

So 9/6

11:30 am-4:18 pm

1 stop17h 48m

Washington, D.C. Dulles Intl

Do 9/10

3:15 pm-3:20 pm

2 stops35h 05m

$1,056

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Fr 12/18

6:30 pm-9:49 pm

1 stop17h 19m

Washington, D.C. Reagan-National

Mi 1/6

7:00 am-4:25 pm

1 stop19h 25m

$1,056

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

So 12/20

6:30 pm-9:49 pm

1 stop17h 19m

Washington, D.C. Reagan-National

So 1/3

7:00 am-4:25 pm

1 stop19h 25m

$1,056

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Di 12/15

6:00 pm-9:53 pm

1 stop17h 53m

Washington, D.C. Reagan-National

Do 12/31

7:00 am-4:25 pm

1 stop19h 25m

$1,056

IncheonWashington, D.C.

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

ICNDCA

Incheon Intl

Do 12/24

8:00 pm-4:06 pm

1 stop34h 06m

Washington, D.C. Reagan-National

So 2/14

8:00 am-5:35 pm

1 stop19h 35m

$1,094

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 August.

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

ICN-BWI

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-IAD

ICN-DCA

ICN-BWI

GMP-DCA

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 $585). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $1,544). 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 below average for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $923 and $1,811 in December.
The cheapest round-trip price found within the last 5 days was $661 on Air Canada (Dec 23-Jan 31).

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 5 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

1,222 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

1,222 reviews

Korean Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

AIR PREMIA

8.1

Very good

102 reviews

Korean Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Asiana Airlines

8.1

Very good

553 reviews

Korean Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

United Airlines

7.4

Good

10,072 reviews

Korean Air

8.4

Very good

1,222 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Air Canada

7.1

Good

11,429 reviews

Korean Air

8.4

Very good

1,222 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 $1,142, American Airlines can have you in Washington, D.C. from Seoul in 13h 30m. 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 $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 Delta - these airlines can fly you to your destination from $508 and $853, respectively. American Airlines is currently priced 53% 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 AIR PREMIA (100%), 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 $1,760 for a flight from Seoul to Washington, D.C.. The cheapest flight overall is $420 while the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl) is currently priced at $750.
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 $585). Flying from Seoul to Washington, D.C. in January is currently the most expensive (average of $1,544). 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$508	Average$891	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$649	Average$1,609	FlexibilityNo cancel fee	On-timeN/A
AIR PREMIA	Cheapest$876	Average$1,171	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,260	Average$1,648	FlexibilityNo cancel fee	On-time81%

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$483+ 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 10/23. 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 August 5, 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 August 5, 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 August 5, 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 August 5, 2026.

Last-minute flights from Seoul to Washington, D.C.Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated August 5, 2026 and is based on user searches.

Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated August 5, 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 August 5, 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 August 5, 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.

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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 August.

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 August 5, 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 below average for this route at the moment.

Seoul to Washington, D.C. flights typically cost between $923 and $1,811 in December.The cheapest round-trip price found within the last 5 days was $661 on Air Canada (Dec 23-Jan 31).

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 5 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

AI-powered summary based on content written by travel experts. AI can make mistakes.

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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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

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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 August 5, 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 August 5, 2026.

Last-minute flights from Seoul to Washington, D.C.
Discover last-minute flight deals from Seoul to Washington, D.C.. Data last updated August 5, 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 August 5, 2026.

Seoul to Washington, D.C. flights typically cost between $923 and $1,811 in December.
The cheapest round-trip price found within the last 5 days was $661 on Air Canada (Dec 23-Jan 31).