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

According to our current data, American Airlines ($717), United Airlines ($745), and Air Canada ($762) offers the cheapest pricing from Incheon Intl Airport to Washington, D.C.. American Airlines is priced at 43% lower than the current average price of a flight leaving 3 months from now.

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

To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $434. American Airlines flights start at $443 while deals on United Airlines start at $460 one-way.

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

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

What are the most popular routes from Incheon Intl Airport to Washington, D.C.?

The most popular flight routes from Incheon Intl Airport to Washington, D.C. are Incheon Intl - Washington, D.C. Dulles Intl, Incheon Intl - Washington, D.C. Reagan-National and Incheon Intl - Baltimore/Washington.

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

While on average a flight from Incheon Intl Airport to Washington, D.C. is generally $1,533, our data shows the cheapest flight currently is $1,071. When looking at the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl), you can expect to pay $737 for that flight.

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

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

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

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

To save on the cost of your flight from Incheon Intl Airport to Washington, D.C., book at least 44 days before your planned departure. Booking around this time can save you about 51% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,054 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,054.

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

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, February can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from Incheon Intl Airport in February are about $1,134 on average during February, but can be found for as low as $748.

Most accurate provider : When it comes to deals on Incheon Intl Airport-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 Incheon Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Incheon Intl Airport-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 Incheon Intl Airport-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 Incheon Intl to Washington, D.C. that include hotel bookings?

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

How can I find direct flights from Incheon Intl 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 Incheon Intl to Washington, D.C..

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

Yes. Cheapflights offers flight deals from Incheon Intl 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.

$400+ Flights from Incheon Intl Airport to Washington, D.C.

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1. Tell us where you want to go

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

2. Select your favorite providers

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

3. Compare prices and book

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

Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. are usually found in December or November, booked 44 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Incheon Intl to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$717 (American Airlines)
One-way from	$400 (Kiwi.com)
Popular in	June
Cheapest in	December
Average price	$1,056
Good round-trip deal	$1,381 or less
Good one-way deal	$1,162 or less

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

Search Deals

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

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From Incheon Intl to Washington, D.C. (WAS)

Search Deals

One-way flight from Incheon Intl to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($316 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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

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

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Find flight deals from Incheon Intl to Washington, D.C.

Cheapest flights from Incheon Intl to Washington, D.C.
Explore the most affordable flight options available from Incheon Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Mon 4/145:25 pmICN - DCA

2 stops27h 11mAmerican Airlines

Mon 4/2110:22 pmDCA - ICN

2 stops28h 08mAmerican Airlines

Deal found 3/26

$717

Mon 5/56:20 pmICN - IAD

1 stop36h 02mMultiple Airlines

Sat 5/107:00 amIAD - ICN

1 stop24h 30mMultiple Airlines

Deal found 3/26

$737

Thu 4/104:50 pmICN - IAD

1 stop17h 35mUnited Airlines

Thu 4/242:40 pmIAD - ICN

1 stop24h 40mUnited Airlines

Deal found 3/27

$745

Tue 4/111:30 amICN - BWI

2 stops23h 12mUnited Airlines

Fri 4/254:07 pmBWI - ICN

2 stops23h 13mUnited Airlines

Deal found 3/26

$747

Tue 5/2711:30 amICN - DCA

2 stops24h 12mUnited Airlines

Thu 7/315:00 pmDCA - ICN

2 stops22h 20mUnited Airlines

Deal found 3/25

$747

Mon 11/108:10 pmICN - IAD

1 stop25h 25mAir Canada

Wed 2/43:55 pmIAD - ICN

2 stops35h 10mAir Canada

Deal found 3/27

$748

Tue 5/135:45 pmICN - DCA

2 stops31h 16mAir Canada

Tue 5/204:35 pmDCA - ICN

2 stops34h 30mAir Canada

Deal found 3/25

$762

Sat 5/105:45 pmICN - BWI

3 stops25h 24mMultiple Airlines

Sat 5/178:44 pmBWI - ICN

2 stops30h 21mMultiple Airlines

Deal found 3/27

$764

Thu 4/35:25 pmICN - IAD

1 stop17h 49mAmerican Airlines

Wed 4/165:13 pmIAD - ICN

1 stop33h 17mAmerican Airlines

Deal found 3/28

$789

Thu 4/106:40 pmICN - BWI

1 stop18h 15mDelta

Thu 4/246:00 amBWI - ICN

1 stop22h 20mDelta

Deal found 3/27

$947

Sun 5/115:25 pmICN - BWI

2 stops29h 31mAmerican Airlines

Sun 5/188:17 pmBWI - ICN

2 stops30h 13mAmerican Airlines

Deal found 3/27

$1,044

Fri 3/285:50 pmICN - IAD

1 stop34h 20mAir China

Sat 4/511:00 pmIAD - ICN

1 stop28h 35mAir China

Deal found 3/27

$1,049

Best flights from Incheon Intl to Washington, D.C.
Discover carefully curated flight deals from Incheon Intl to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Mon 4/145:25 pmICN - DCA

2 stops27h 11mAmerican Airlines

Mon 4/2110:22 pmDCA - ICN

2 stops28h 08mAmerican Airlines

Deal found 3/26

$717

Mon 5/56:20 pmICN - IAD

1 stop36h 02mMultiple Airlines

Sat 5/107:00 amIAD - ICN

1 stop24h 30mMultiple Airlines

Deal found 3/26

$737

Thu 4/104:50 pmICN - IAD

1 stop17h 35mUnited Airlines

Thu 4/242:40 pmIAD - ICN

1 stop24h 40mUnited Airlines

Deal found 3/27

$745

Tue 5/135:45 pmICN - DCA

2 stops31h 16mAir Canada

Tue 5/204:35 pmDCA - ICN

2 stops34h 30mAir Canada

Deal found 3/25

$762

Thu 4/106:40 pmICN - BWI

1 stop18h 15mDelta

Thu 4/246:00 amBWI - ICN

1 stop22h 20mDelta

Deal found 3/27

$947

Fri 7/118:45 pmICN - BWI

2 stops35h 01mWestJet

Sat 7/194:39 pmBWI - ICN

2 stops37h 06mWestJet

Deal found 3/27

$1,096

Wed 5/289:25 pmICN - DCA

2 stops36h 34mAlaska Airlines

Thu 7/316:58 pmDCA - ICN

2 stops35h 02mAlaska Airlines

Deal found 3/25

$1,249

Tue 4/229:30 amICN - BWI

1 stop17h 20mKorean Air

Tue 4/296:50 pmBWI - ICN

1 stop20h 10mKorean Air

Deal found 3/27

$1,284

Tue 5/138:30 amICN - BWI

2 stops29h 18mAir France

Fri 5/307:44 pmBWI - ICN

2 stops45h 46mAir France

Deal found 3/27

$1,442

Wed 9/1710:25 pmICN - BWI

2 stops31h 44mKLM

Thu 9/251:00 pmBWI - ICN

2 stops38h 25mKLM

Deal found 3/27

$1,444

Wed 4/164:50 pmICN - BWI

2 stops25h 34mUnited Airlines

Thu 5/110:47 amBWI - ICN

2 stops28h 33mUnited Airlines

Deal found 3/27

$747

Sat 5/105:45 pmICN - BWI

3 stops25h 24mMultiple Airlines

Sat 5/178:44 pmBWI - ICN

2 stops30h 21mMultiple Airlines

Deal found 3/27

$764

Last-minute flights from Incheon Intl to Washington, D.C.
Discover last-minute flight deals from Incheon Intl to Washington, D.C.. Data last updated March 28, 2025 and is based on user searches.

Thu 3/2711:45 amICN - DCA

1 stop18h 08mUnited Airlines

Wed 4/98:30 amDCA - ICN

2 stops41h 30mUnited Airlines

Deal found 3/26

$747

Tue 4/111:30 amICN - DCA

1 stop23h 00mUnited Airlines

Fri 4/254:15 pmDCA - ICN

2 stops23h 05mUnited Airlines

Deal found 3/26

$747

Tue 4/17:05 pmICN - DCA

1 stop26h 48mAir Canada

Sat 5/318:40 pmDCA - ICN

2 stops54h 25mAir Canada

Deal found 3/27

$1,275

Tue 4/18:20 amICN - DCA

3 stops27h 08mMultiple Airlines

Sat 5/316:50 pmDCA - ICN

3 stops34h 55mMultiple Airlines

Deal found 3/27

$1,354

Tue 4/111:30 amICN - BWI

2 stops23h 12mUnited Airlines

Fri 4/254:07 pmBWI - ICN

2 stops23h 13mUnited Airlines

Deal found 3/26

$747

Tue 4/11:05 pmICN - IAD

1 stop19h 25mAir China

Sat 4/511:00 pmIAD - ICN

1 stop28h 35mAir China

Deal found 3/27

$972

Wed 4/24:50 pmICN - IAD

2 stops20h 09mUnited Airlines

Wed 4/1612:47 pmIAD - ICN

2 stops26h 33mUnited Airlines

Deal found 3/28

$747

Wed 4/27:05 pmICN - IAD

2 stops29h 09mAir Canada

Fri 4/44:07 pmIAD - ICN

2 stops34h 58mAir Canada

Deal found 3/27

$858

Wed 4/21:05 amICN - IAD

2 stops32h 00mEthiopian Air

Wed 4/169:40 pmIAD - ICN

2 stops29h 20mEthiopian Air

Deal found 3/28

$1,200

Wed 4/21:05 amICN - IAD

2 stops32h 00mMultiple Airlines

Tue 4/811:00 pmIAD - ICN

1 stop26h 15mMultiple Airlines

Deal found 3/27

$1,223

Wed 4/22:40 pmICN - IAD

1 stop19h 39mAsiana Airlines

Fri 4/46:10 amIAD - ICN

1 stop33h 10mAsiana Airlines

Deal found 3/27

$1,301

Thu 4/311:30 amICN - BWI

1 stop19h 02mUnited Airlines

Tue 4/812:35 pmBWI - ICN

2 stops26h 45mUnited Airlines

Deal found 3/27

$747

One-way flights from Incheon Intl to Washington, D.C.
Search for one-way flight options from Incheon Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Tue 4/812:45 pmICN - BWI

1 stop37h 53mMultiple Airlines

Deal found 3/26

$400

Mon 5/56:20 pmICN - IAD

2 stops35h 18mMultiple Airlines

Deal found 3/28

$404

Mon 5/56:20 pmICN - DCA

2 stops40h 39mMultiple Airlines

Deal found 3/26

$416

Tue 5/208:45 pmICN - IAD

1 stop34h 09mWestJet

Deal found 3/27

$434

Wed 4/25:25 pmICN - BWI

1 stop18h 33mAmerican Airlines

Deal found 3/27

$443

Wed 4/25:25 pmICN - IAD

1 stop17h 49mAmerican Airlines

Deal found 3/27

$443

Wed 4/25:25 pmICN - DCA

2 stops27h 00mAmerican Airlines

Deal found 3/26

$445

Wed 4/164:50 pmICN - BWI

2 stops30h 04mUnited Airlines

Deal found 3/27

$460

Mon 4/74:50 pmICN - IAD

3 stops36h 24mUnited Airlines

Deal found 3/27

$460

Tue 4/811:30 amICN - DCA

2 stops25h 29mUnited Airlines

Deal found 3/26

$460

Thu 6/198:45 pmICN - BWI

2 stops39h 56mWestJet

Deal found 3/26

$490

Mon 6/165:50 pmICN - IAD

1 stop38h 40mAir China

Deal found 3/26

$589

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 4/14

5:25 pm-7:36 am

2 stops27h 11m

Washington, D.C. Reagan-National

Mon 4/21

10:22 pm-3:30 pm

2 stops28h 08m

$717

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 5/5

6:20 pm-5:22 pm

1 stop36h 02m

Washington, D.C. Dulles Intl

Sat 5/10

7:00 am-8:30 pm

1 stop24h 30m

$737

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 4/10

4:50 pm-9:25 pm

1 stop17h 35m

Washington, D.C. Dulles Intl

Thu 4/24

2:40 pm-4:20 am

1 stop24h 40m

$745

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 4/16

4:50 pm-5:24 am

2 stops25h 34m

Baltimore/Washington

Thu 5/1

10:47 am-4:20 am

2 stops28h 33m

$747

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 5/27

11:30 am-10:42 pm

2 stops24h 12m

Washington, D.C. Reagan-National

Thu 7/31

5:00 pm-4:20 am

2 stops22h 20m

$747

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 5/13

5:45 pm-12:01 pm

2 stops31h 16m

Washington, D.C. Reagan-National

Tue 5/20

4:35 pm-4:05 pm

2 stops34h 30m

$762

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Sat 5/10

5:45 pm-6:09 am

3 stops25h 24m

Baltimore/Washington

Sat 5/17

8:44 pm-4:05 pm

2 stops30h 21m

$764

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 5/13

5:45 pm-7:55 am

2 stops27h 10m

Washington, D.C. Dulles Intl

Sat 8/9

5:31 pm-4:05 pm

2 stops33h 34m

$765

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 4/18

5:25 pm-10:45 pm

1 stop18h 20m

Washington, D.C. Dulles Intl

Tue 7/15

6:44 pm-3:30 pm

1 stop31h 46m

$889

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Thu 4/10

6:40 pm-11:55 pm

1 stop18h 15m

Baltimore/Washington

Thu 4/24

6:00 am-5:20 pm

1 stop22h 20m

$947

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 50 results

...

Compare providers for flights from Incheon Intl to Washington, D.C.

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

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*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 Incheon Intl Airport-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 Incheon Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Incheon Intl Airport-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 Incheon Intl Airport-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 Incheon Intl to Washington, D.C.

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

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Washington, D.C.

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

The best time to book flights from Incheon Intl Airport to Washington, D.C. is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. (average of $309). Flying from Incheon Intl Airport to Washington, D.C. in June is currently the most expensive (average of $385). 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 ICN to WAS?

When flying from Incheon Intl Airport to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the morning.

Rainfall in Washington, D.C. by month

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

Temperature in Washington, D.C. by month

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

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Seoul to Washington, D.C., such as Korean Air, Japan Airlines and Asiana Airlines. 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

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air

8.4

Very good

1,050 reviews

Korean Air

8.4

Very good

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Japan Airlines

8.3

Very good

1,440 reviews

Korean Air

8.4

Very good

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Asiana Airlines

8.2

Very good

440 reviews

Korean Air

8.4

Very good

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Singapore Airlines

8.1

Very good

1,285 reviews

Korean Air

8.4

Very good

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Emirates

8.0

Very good

3,190 reviews

Korean Air

8.4

Very good

1,050 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Related info for your journey

What are the cheapest airlines flying from Incheon Intl Airport to Washington, D.C. round-trip?
According to our current data, American Airlines ($717), United Airlines ($745), and Air Canada ($762) offers the cheapest pricing from Incheon Intl Airport to Washington, D.C.. American Airlines is priced at 43% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Incheon Intl Airport to Washington, D.C. one-way?
To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $434. American Airlines flights start at $443 while deals on United Airlines start at $460 one-way.
What are the most popular routes from Incheon Intl Airport to Washington, D.C.?
The most popular flight routes from Incheon Intl Airport to Washington, D.C. are Incheon Intl - Washington, D.C. Dulles Intl, Incheon Intl - Washington, D.C. Reagan-National and Incheon Intl - Baltimore/Washington.
What are the cheapest flights from Incheon Intl Airport to Washington, D.C.?
While on average a flight from Incheon Intl Airport to Washington, D.C. is generally $1,533, our data shows the cheapest flight currently is $1,071. When looking at the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl), you can expect to pay $737 for that flight.
Can I find deals for flights from Incheon Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Incheon Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Incheon Intl 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 Incheon Intl to Washington, D.C..
Can I find deals for business class flights from Incheon Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Incheon Intl 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 Incheon Intl Airport to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. (average of $309). Flying from Incheon Intl Airport to Washington, D.C. in June is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alexandria

Fairfax

Tysons

Springfield

Rockville

Woodbridge

Gaithersburg

Fredericksburg

Linthicum Heights

Silver Spring

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Laurel

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Oxon Hill

Reston

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Incheon Intl to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$687	Average$808	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$688	Average$982	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$726	Average$1,057	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$882	Average$1,690	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,053	Average$1,520	FlexibilityNo cancel fee	On-time81%

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$400+ Cheap flights from Incheon Intl (ICN) 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. are usually found in December or November, booked 44 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap flight deals from Incheon Intl to Washington, D.C.

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Find flight deals from Incheon Intl to Washington, D.C.

Cheapest flights from Incheon Intl to Washington, D.C.Explore the most affordable flight options available from Incheon Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from Incheon Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

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Compare providers for flights from Incheon Intl 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 Incheon Intl to Washington, D.C. in March.

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

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

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to Washington, D.C.. Price data was last updated on March 21, 2025.

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

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

Find hourly flight availability from Incheon Intl 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 March 28, 2025.

Rainfall in Washington, D.C. by month

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

Temperature in Washington, D.C. by month

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

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Seoul to Washington, D.C., such as Korean Air, Japan Airlines and Asiana Airlines. 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

Find useful and relevant information for your journey from Incheon Intl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

What are the most popular routes from Incheon Intl Airport to Washington, D.C.?

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

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

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

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

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

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Alternative routes for Incheon Intl to Washington, D.C.

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Top 5 airlines flying from Incheon Intl to Washington, D.C.

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Cheapest flights from Incheon Intl to Washington, D.C.
Explore the most affordable flight options available from Incheon Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.