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Incheon Intl

$435+ Cheap flights from Washington, D.C. (WAS) to Incheon Intl (ICN)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ICN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Incheon Intl are usually found in January or October, booked 41 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Incheon Intl (ICN). 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 July 30, 2025.

Round-trip from

$799
(Kiwi.com)

One-way from

$435
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,557

Good round-trip deal

$1,027 or less

Good one-way deal

$491 or less
From Washington, D.C. (WAS) to Incheon Intl
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One-way flight from Washington, D.C. (WAS) to Incheon Intl
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Highest demand for flights based on searches. 17% potential increase in price ($289 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Incheon Intl.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Incheon Intl.
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Find flight deals from Washington, D.C. to Incheon Intl

Cheapest flights from Washington, D.C. to Incheon Intl
Explore the most affordable flight options available from Washington, D.C. to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/254:00 pmBWI - ICN
2 stops40h 35mMultiple Airlines
Tue 9/212:45 pmICN - BWI
1 stop31h 09mMultiple Airlines
Deal found 7/28$799
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/69:40 pmIAD - ICN
1 stop31h 00mTurkish Airlines
Mon 9/1510:20 amICN - IAD
1 stop38h 25mTurkish Airlines
Deal found 7/29$1,092
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Mon 9/84:35 pmDCA - ICN
3 stops34h 30mAir Canada
Thu 12/46:55 pmICN - DCA
2 stops29h 31mAir Canada
Deal found 7/29$1,093
This Air Canada deal was found by Cheapflights users on 7/30. 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 12/129:00 amIAD - ICN
1 stop19h 25mAir Canada
Sat 12/278:10 pmICN - IAD
2 stops28h 51mAir Canada
Deal found 7/30$1,093
This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:00 amIAD - ICN
1 stop22h 35mHawaiian Airlines
Sun 9/218:35 pmICN - IAD
1 stop23h 58mHawaiian Airlines
Deal found 7/28$1,094
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Thu 9/116:00 amDCA - ICN
3 stops33h 30mMultiple Airlines
Thu 9/187:05 pmICN - DCA
3 stops35h 59mMultiple Airlines
Deal found 7/29$1,095
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 9/147:00 amIAD - ICN
1 stop22h 35mAlaska Airlines
Sat 9/208:35 pmICN - IAD
1 stop23h 58mAlaska Airlines
Deal found 7/29$1,099
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Mon 8/256:45 pmIAD - ICN
3 stops28h 45mMultiple Airlines
Mon 9/158:45 pmICN - IAD
2 stops25h 53mMultiple Airlines
Deal found 7/29$1,103
This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:00 amDCA - ICN
1 stop20h 35mHawaiian Airlines
Sun 11/168:35 pmICN - DCA
1 stop39h 24mHawaiian Airlines
Deal found 7/28$1,105
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:00 amDCA - ICN
1 stop21h 35mAlaska Airlines
Mon 10/208:35 pmICN - DCA
1 stop38h 24mAlaska Airlines
Deal found 7/28$1,110

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Incheon Intl 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 July 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Incheon Intl Airport that are best for you.

Fly from

Washington, D.C.

Fly to

Incheon Intl

Route

Depart

Return

Price

BaltimoreIncheon

BWI - ICN

BWIICN

Baltimore/Washington

Mon 8/25

4:00 pm-9:35 pm

2 stops40h 35m

Incheon Intl

Tue 9/2

12:45 pm-6:54 am

1 stop31h 09m

$799

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 9/6

9:40 pm-5:40 pm

1 stop31h 00m

Incheon Intl

Mon 9/15

10:20 am-11:45 am

1 stop38h 25m

$1,092

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/8

4:35 pm-4:05 pm

3 stops34h 30m

Incheon Intl

Thu 12/4

6:55 pm-10:26 am

2 stops29h 31m

$1,093

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Wed 9/3

3:00 pm-4:20 am

1 stop24h 20m

Incheon Intl

Thu 11/13

6:00 pm-12:56 am

1 stop20h 56m

$1,093

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sat 9/13

7:00 am-6:35 pm

1 stop22h 35m

Incheon Intl

Sun 9/21

8:35 pm-7:33 am

1 stop23h 58m

$1,094

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/11

6:00 am-4:30 am

3 stops33h 30m

Incheon Intl

Thu 9/18

7:05 pm-6:04 pm

3 stops35h 59m

$1,095

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 10/5

3:36 pm-5:30 pm

1 stop36h 54m

Incheon Intl

Sun 10/19

6:00 pm-11:13 am

1 stop30h 13m

$1,098

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Sun 9/14

7:00 am-6:35 pm

1 stop22h 35m

Incheon Intl

Sat 9/20

8:35 pm-7:33 am

1 stop23h 58m

$1,099

Washington, D.C.Incheon

IAD - ICN

IADICN

Washington, D.C. Dulles Intl

Mon 8/25

6:45 pm-12:30 pm

3 stops28h 45m

Incheon Intl

Mon 9/15

8:45 pm-9:38 am

2 stops25h 53m

$1,103

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 10/4

8:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Mon 10/20

8:35 pm-9:59 pm

1 stop38h 24m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 24 results
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The best insider tips for Washington, D.C. to Incheon Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Incheon Intl Airport trip
Airports
IAD

For a smooth departure from IAD, use the Aerotrain to navigate between terminals quickly, especially during busy afternoon and evening hours.

Read more about IADby Ramsey Qubein
ICN

Take the AREX express train for a quick 40-50 minute ride to Seoul Station from ICN. It's convenient and avoids traffic.

Read more about ICNby Gabriel Leigh
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

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.

Read more

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

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Washington, D.C. 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 Washington, D.C. to Incheon Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Incheon Intl. Price data was last updated on July 25, 2025.

The price you pay for your flight from Washington, D.C. to Incheon Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Incheon Intl Airport (average of $998). Flying from Washington, D.C. to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 WAS to ICN?

Find hourly flight availability from Washington, D.C. to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from Washington, D.C. to Incheon Intl Airport by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Incheon Intl. Price data was last updated on December 16, 2024.

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

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

Explore weekly flight availability from Washington, D.C. to Incheon Intl. 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 July 30, 2025.

The most flights from WAS to ICN 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).

What’s the top layover airport for flights from Washington, D.C. to Incheon Intl Airport?

Share of 1-stop round-trip flights from Washington, D.C. to Incheon Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 40% of 1-stop itineraries from Washington, D.C. to Incheon Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Incheon Intl Airport?

Average round-trip fare for 1-stop flights from Washington, D.C. to Incheon Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of $912.

What’s the fastest layover option from Washington, D.C. to Incheon Intl Airport?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Incheon Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Beijing (PEK) have the shortest average one-way travel time for 1-stop routes: 6h 40m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Incheon Intl Airport?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Incheon Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 24m.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated July 30, 2025.
See what other customers who have flown with EVA Air, China Airlines, and Alaska Airlines from Washington, D.C. to Incheon Intl Airport have to say. 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
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,222 reviews
EVA Air
8.4
Very good
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
754 reviews
EVA Air
8.4
Very good
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Alaska Airlines
8.0
Very good
10,000 reviews
EVA Air
8.4
Very good
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,980 reviews
EVA Air
8.4
Very good
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Hawaiian Airlines
7.8
Good
2,611 reviews
EVA Air
8.4
Very good
1,222 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Incheon Intl. 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 Washington, D.C. to Incheon Intl Airport round-trip?

    According to our current data, Turkish Airlines ($1,092), Air Canada ($1,093), and United Airlines ($1,093) offers the cheapest pricing from Washington, D.C. to Incheon Intl Airport. Turkish Airlines is currently priced 21% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Washington, D.C. to Incheon Intl Airport are WestJet ($441), Turkish Airlines ($515), and Air Canada ($551).

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

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

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Incheon Intl.

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Incheon Intl 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 Washington, D.C. to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Incheon Intl Airport (average of $998). Flying from Washington, D.C. to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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
Suwon
Seongnam
Daejeon

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

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

Top 8 airlines flying from Washington, D.C. to Incheon Intl

Discover the top 8 airlines that operate flights from Washington, D.C. to Incheon Intl. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$367Average$1,565FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$591Average$747FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$759Average$1,530FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$800Average$997FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$864Average$1,258FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$876Average$1,286FlexibilityNo cancel feeOn-time71%
DeltaCheapest$877Average$1,829FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,074Average$1,732FlexibilityNo cancel feeOn-time81%

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