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Washington, D.C.

$409+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — WAS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. are usually found in December or March, booked 45 days in advance, depart on a Monday or Friday and return on a Wednesday

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

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$811
(Kiwi.com)

One-way from

$409
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$1,283

Good round-trip deal

$1,440 or less

Good one-way deal

$1,085 or less
Provider with most accurate pricing for Incheon Intl-Washington, D.C. (WAS) flight deals.
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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)
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One-way flight from Incheon Intl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 16% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/78:40 pmICN - BWI
2 stops22h 30mMultiple Airlines
Wed 5/148:44 pmBWI - ICN
1 stop31h 51mMultiple Airlines
Deal found 4/29$726
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/284:40 pmICN - IAD
1 stop20h 19mMultiple Airlines
Wed 6/116:30 amIAD - ICN
1 stop21h 10mMultiple Airlines
Deal found 4/27$811
This Air Canada deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:50 pmICN - IAD
2 stops30h 26mAir Canada
Fri 11/79:45 amIAD - ICN
1 stop18h 40mAir Canada
Deal found 4/28$883
This Gotogate deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:00 pmICN - DCA
1 stop16h 51mAir Canada
Tue 9/236:00 amDCA - ICN
1 stop21h 15mAir Canada
Deal found 4/28$911
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:25 pmICN - IAD
2 stops28h 13mAmerican Airlines
Wed 5/146:17 amIAD - ICN
1 stop20h 13mAmerican Airlines
Deal found 4/29$917
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:25 pmICN - DCA
1 stop20h 21mAmerican Airlines
Wed 5/145:00 amDCA - ICN
1 stop21h 30mAmerican Airlines
Deal found 4/29$926
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/55:25 pmICN - BWI
1 stop18h 56mAmerican Airlines
Wed 9/246:56 amBWI - ICN
1 stop19h 34mAmerican Airlines
Deal found 4/29$927
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/34:50 pmICN - IAD
1 stop35h 00mUnited Airlines
Tue 5/612:10 pmIAD - ICN
1 stop34h 20mUnited Airlines
Deal found 4/29$959
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:45 pmICN - DCA
2 stops29h 35mMultiple Airlines
Tue 10/144:35 pmDCA - ICN
2 stops39h 35mMultiple Airlines
Deal found 4/28$971
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/28:15 amICN - DCA
2 stops51h 44mLOT
Tue 8/126:30 amDCA - ICN
2 stops34h 55mLOT
Deal found 4/28$1,163
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:25 pmICN - BWI
2 stops33h 57mAlaska Airlines
Tue 9/97:22 pmBWI - ICN
2 stops58h 38mAlaska Airlines
Deal found 4/29$1,198
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:00 pmICN - BWI
2 stops19h 00mUnited Airlines
Wed 11/264:10 pmBWI - ICN
2 stops23h 30mUnited Airlines
Deal found 4/28$1,235

Cheapflights Fare Finder

Customize your flight search to find flights from Incheon Intl to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Washington, D.C. that are best for you.

Fly from

Incheon Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 5/28

4:40 pm-11:59 pm

1 stop20h 19m

Washington, D.C. Dulles Intl

Wed 6/11

6:30 am-4:40 pm

1 stop21h 10m

$811

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 10/15

5:45 pm-9:05 pm

2 stops40h 20m

Washington, D.C. Dulles Intl

Wed 10/22

9:45 am-4:05 pm

2 stops41h 20m

$899

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Sat 6/14

8:55 pm-11:23 am

2 stops27h 28m

Baltimore/Washington

Sat 6/21

12:25 pm-4:30 am

2 stops27h 05m

$907

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 9/12

6:00 pm-9:51 pm

1 stop16h 51m

Washington, D.C. Reagan-National

Tue 9/23

6:00 am-4:15 pm

1 stop21h 15m

$911

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 5/15

5:25 pm-12:02 am

2 stops43h 37m

Washington, D.C. Dulles Intl

Tue 8/5

6:35 am-3:30 pm

2 stops43h 55m

$917

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 6/30

6:30 pm-3:45 pm

1 stop34h 15m

Washington, D.C. Dulles Intl

Mon 7/14

3:00 pm-3:00 pm

1 stop35h 00m

$961

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 9/15

5:45 pm-10:20 am

2 stops29h 35m

Washington, D.C. Reagan-National

Tue 10/14

4:35 pm-9:10 pm

2 stops39h 35m

$971

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 5/12

5:25 pm-9:59 am

2 stops29h 34m

Baltimore/Washington

Sat 6/14

7:49 pm-3:30 pm

2 stops30h 41m

$980

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 5/9

5:25 pm-12:46 am

1 stop44h 21m

Washington, D.C. Reagan-National

Tue 5/20

5:00 am-3:30 pm

1 stop21h 30m

$1,093

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 5/15

10:25 am-11:15 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Tue 8/5

8:31 pm-4:50 am

1 stop19h 19m

$1,104

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 51 results
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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 April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust 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 Incheon Intl Airport-Washington, D.C. flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Incheon Intl Airport-Washington, D.C. flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for 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.?

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 April 25, 2025.

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 $373). 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?

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 April 29, 2025.

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 33% versus a flight in the morning.

Weekly flight availability from Incheon Intl Airport to Washington, D.C.

Explore weekly flight availability from Incheon Intl to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 29, 2025.

The most flights from ICN to WAS are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Washington, D.C. by month

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

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

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated April 29, 2025.
Read through reviews of airlines operating flights from Seoul to Washington, D.C., such as EVA Air, Korean Air and Japan Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Korean Air
8.4
Very good
1,066 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very good
1,459 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Singapore Airlines
8.1
Very good
1,292 reviews
EVA Air
8.4
Very good
1,186 reviews

Food

8.1

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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?

    According to our current data, Air Canada ($899), American Airlines ($917), and United Airlines ($961) offers the cheapest pricing from Incheon Intl Airport to Washington, D.C.. Air Canada is priced at 30% 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 $483. Air Canada flights start at $585 while deals on American Airlines start at $586 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 $1,393, our data shows the cheapest flight currently is $1,052. When looking at the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl), you can expect to pay $822 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 $373). 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

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

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Dulles Intl flights
Incheon Intl to Reagan-National flights

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

Discover the top 5 airlines that operate flights from Incheon Intl to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$687Average$806FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$688Average$982FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$726Average$1,037FlexibilityNo cancel feeOn-time69%
DeltaCheapest$882Average$1,551FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,127Average$1,466FlexibilityNo cancel feeOn-time81%

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