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

One-way options have recently been found by users for as low as $449 on American Airlines. Other airlines that offer cheap prices include United Airlines from $456 and Air Canada from $611 one-way.

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

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

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

Flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Reagan-National Airport.

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

Flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport lean towards being more expensive in August. Prices are generally better when you fly from Incheon Intl Airport to Washington, D.C. Reagan-National Airport in February, with the cheapest ticket starting at $738.

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

When flying from Incheon Intl Airport to Washington, D.C. Reagan-National Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 28% versus a flight in the morning.

Most accurate provider : When it comes to deals on Incheon Intl Airport-Washington, D.C. Reagan-National Airport 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. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National Airport 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 Reagan-National that include hotel bookings?

Yes. In addition to deals on Incheon Intl to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Incheon Intl to Reagan-National?

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

Can I find deals for business class flights from Incheon Intl to Reagan-National?

Yes. Cheapflights offers flight deals from Incheon Intl to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$449+ Save on Flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport

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

Travelers have found it’s best to book a flight 44 days in advance to save up to 51% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport 1-2 weeks in advance for as low as $1,054, or $1,054 for flights within the next 24 hours.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Incheon Intl to Reagan-National with Cheapflights

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.

Cheap flight deals from Incheon Intl to Reagan-National

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$735 (United Airlines)
One-way from	$449 (American Airlines)
Popular in	June
Cheapest in	February
Average price	$694

Provider with most accurate pricing for Incheon Intl-Washington, D.C. Reagan-National flight deals.

Search Deals

Provider most trusted by Cheapflights users for Incheon Intl-Washington, D.C. Reagan-National flights.

Search Deals

From Incheon Intl to Washington, D.C. Reagan-National

Search Deals

One-way flight from Incheon Intl to Washington, D.C. Reagan-National

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($85 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from Incheon Intl to Reagan-National

Cheapest flights from Incheon Intl to Reagan-National
Explore the most affordable flight options available from Incheon Intl to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

Fri 2/216:00 pmICN - DCA

2 stops19h 53mUnited Airlines

Sun 3/27:00 pmDCA - ICN

3 stops31h 15mUnited Airlines

Deal found 2/19

$735

Wed 3/56:50 pmICN - DCA

1 stop19h 55mAmerican Airlines

Sat 4/56:59 pmDCA - ICN

1 stop31h 31mAmerican Airlines

Deal found 2/19

$786

Tue 7/225:45 pmICN - DCA

2 stops28h 07mAir Canada

Thu 7/318:40 pmDCA - ICN

2 stops30h 25mAir Canada

Deal found 2/19

$880

Mon 3/244:40 pmICN - DCA

1 stop36h 58mMultiple Airlines

Mon 4/145:38 pmDCA - ICN

1 stop21h 52mMultiple Airlines

Deal found 2/19

$1,262

Best flights from Incheon Intl to Reagan-National
Discover carefully curated flight deals from Incheon Intl to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2025.

Thu 3/612:45 pmICN - DCA

1 stop22h 13mUnited Airlines

Thu 3/135:56 pmDCA - ICN

1 stop21h 44mUnited Airlines

Deal found 2/19

$735

Wed 3/56:50 pmICN - DCA

1 stop19h 55mAmerican Airlines

Sat 4/56:59 pmDCA - ICN

1 stop31h 31mAmerican Airlines

Deal found 2/19

$786

Tue 7/225:45 pmICN - DCA

2 stops28h 07mAir Canada

Thu 7/318:40 pmDCA - ICN

2 stops30h 25mAir Canada

Deal found 2/19

$880

Mon 3/244:40 pmICN - DCA

1 stop36h 58mMultiple Airlines

Mon 4/145:38 pmDCA - ICN

1 stop21h 52mMultiple Airlines

Deal found 2/19

$1,262

Fri 3/217:30 pmICN - DCA

1 stop17h 20mDelta

Sun 4/67:45 amDCA - ICN

1 stop20h 35mDelta

Deal found 2/20

$1,305

Last-minute flights from Incheon Intl to Reagan-National
Discover last-minute flight deals from Incheon Intl to Reagan-National. Data last updated February 20, 2025 and is based on user searches.

Fri 2/216:00 pmICN - DCA

2 stops19h 53mUnited Airlines

Sun 3/27:00 pmDCA - ICN

3 stops31h 15mUnited Airlines

Deal found 2/19

$735

Wed 2/2612:45 pmICN - DCA

1 stop22h 13mUnited Airlines

Wed 3/55:59 pmDCA - ICN

1 stop21h 41mUnited Airlines

Deal found 2/20

$736

Wed 2/264:45 pmICN - DCA

3 stops42h 14mSingapore Airlines

Wed 3/59:00 amDCA - ICN

2 stops40h 40mSingapore Airlines

Deal found 2/20

$2,186

Sat 3/18:20 amICN - DCA

3 stops28h 17mMultiple Airlines

Sun 3/28:40 pmDCA - ICN

3 stops35h 35mMultiple Airlines

Deal found 2/19

$1,858

Sat 3/112:20 amICN - DCA

2 stops34h 00mQatar Airways

Wed 3/55:15 pmDCA - ICN

2 stops26h 45mQatar Airways

Deal found 2/20

$2,099

Sun 3/28:10 pmICN - DCA

1 stop16h 27mAir Canada

Thu 4/39:40 amDCA - ICN

1 stop18h 50mAir Canada

Deal found 2/20

$968

Sun 3/27:30 pmICN - DCA

1 stop16h 49mDelta

Fri 3/78:48 pmDCA - ICN

1 stop29h 02mDelta

Deal found 2/19

$2,446

Mon 3/38:10 pmICN - DCA

1 stop16h 27mAir Canada

Thu 4/39:40 amDCA - ICN

1 stop18h 50mAir Canada

Deal found 2/20

$936

Wed 3/56:50 pmICN - DCA

1 stop19h 55mAmerican Airlines

Sat 4/56:59 pmDCA - ICN

1 stop31h 31mAmerican Airlines

Deal found 2/19

$786

Wed 3/512:35 pmICN - DCA

2 stops46h 24mSingapore Airlines

Sat 4/59:00 amDCA - ICN

3 stops41h 35mSingapore Airlines

Deal found 2/19

$1,793

Sun 3/167:30 pmICN - DCA

1 stop17h 20mKorean Air

Wed 5/1410:00 amDCA - ICN

1 stop17h 25mKorean Air

Deal found 2/18

$1,474

Fri 3/217:30 pmICN - DCA

1 stop17h 20mDelta

Sun 4/67:45 amDCA - ICN

1 stop20h 35mDelta

Deal found 2/20

$1,305

One-way flights from Incheon Intl to Reagan-National
Search for one-way flight options from Incheon Intl to Reagan-National. Find affordable one-way fares based on user searches. Data last updated February 20, 2025.

Tue 5/65:25 pmICN - DCA

2 stops27h 15mAmerican Airlines

Deal found 2/19

$449

Wed 3/56:55 pmICN - DCA

2 stops36h 04mMultiple Airlines

Deal found 2/20

$451

Thu 2/276:00 pmICN - DCA

2 stops29h 54mUnited Airlines

Deal found 2/20

$456

Mon 4/285:45 pmICN - DCA

2 stops31h 16mAir Canada

Deal found 2/19

$611

Sun 6/18:45 pmICN - DCA

2 stops35h 33mWestJet

Deal found 2/20

$716

Wed 6/181:00 pmICN - DCA

2 stops22h 15mJapan Airlines

Deal found 2/18

$907

Thu 5/14:25 pmICN - DCA

1 stop17h 09mDelta

Deal found 2/19

$1,091

Thu 7/249:00 amICN - DCA

2 stops48h 55mSingapore Airlines

Deal found 2/20

$1,105

Wed 4/306:50 pmICN - DCA

1 stop17h 49mKorean Air

Deal found 2/19

$1,136

Thu 8/142:40 pmICN - DCA

1 stop20h 57mAsiana Airlines

Deal found 2/19

$1,213

Wed 7/231:20 amICN - DCA

2 stops55h 35mQatar Airways

Deal found 2/20

$1,269

Find flights from Incheon Intl to Reagan-National within your budget

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 3/6

12:45 pm-8:58 pm

1 stop22h 13m

Washington, D.C. Reagan-National

Thu 3/13

5:56 pm-4:40 am

1 stop21h 44m

$735

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 3/5

6:50 pm-12:45 am

1 stop19h 55m

Washington, D.C. Reagan-National

Sat 4/5

6:59 pm-3:30 pm

1 stop31h 31m

$786

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 7/22

5:45 pm-8:52 am

2 stops28h 07m

Washington, D.C. Reagan-National

Thu 7/31

8:40 pm-4:05 pm

2 stops30h 25m

$880

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 3/24

4:40 pm-4:38 pm

1 stop36h 58m

Washington, D.C. Reagan-National

Mon 4/14

5:38 pm-4:30 am

1 stop21h 52m

$1,262

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 3/21

7:30 pm-11:50 pm

1 stop17h 20m

Washington, D.C. Reagan-National

Sun 4/6

7:45 am-5:20 pm

1 stop20h 35m

$1,305

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 5/6

5:25 pm-7:40 am

2 stops27h 15m

$449

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 3/5

6:55 pm-4:59 pm

2 stops36h 04m

$451

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 2/27

6:00 pm-9:54 am

2 stops29h 54m

$456

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 4/28

5:45 pm-12:01 pm

2 stops31h 16m

$611

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sun 6/1

8:45 pm-7:18 pm

2 stops35h 33m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 16 results

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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.

Travel insights for flights from Incheon Intl to Reagan-National

Get recent, data-driven insights about flights from Incheon Intl to Reagan-National including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport (average of $278). Flying from Incheon Intl Airport to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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.

Rainfall in Reagan-National by month

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport 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. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 Reagan-National

See what other customers who have flown with Korean Air, Japan Airlines and Asiana Airlines from Seoul to Washington, D.C. have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,037 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

1,037 reviews

Korean Air

8.4

Very good

1,037 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

1,037 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Asiana Airlines

8.3

Very good

446 reviews

Korean Air

8.4

Very good

1,037 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Singapore Airlines

8.1

Very good

1,301 reviews

Korean Air

8.4

Very good

1,037 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Delta

8.0

Very good

8,219 reviews

Korean Air

8.4

Very good

1,037 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. Reagan-National Airport round-trip?
Currently priced at $735, United Airlines will fly you from Incheon Intl Airport to Washington, D.C. Reagan-National Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Air Canada - these airlines can fly you to your destination from $786 and $880, respectively. These flights start at 36% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Incheon Intl Airport to Washington, D.C. Reagan-National Airport one-way?
One-way options have recently been found by users for as low as $449 on American Airlines. Other airlines that offer cheap prices include United Airlines from $456 and Air Canada from $611 one-way.
Can I find deals for flights from Incheon Intl to Reagan-National that include hotel bookings?
Yes. In addition to deals on Incheon Intl to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Incheon Intl to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to Reagan-National.
Can I find deals for business class flights from Incheon Intl to Reagan-National?
Yes. Cheapflights offers flight deals from Incheon Intl to Reagan-National 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. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport (average of $278). Flying from Incheon Intl Airport to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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

Arlington

Alexandria

Fairfax

Springfield

Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

Easton

Herndon

Bowie

Reston

National Harbor

Oxon Hill

Gettysburg

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Incheon Intl to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$688	Average$994	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$694	Average$700	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$449+ Cheap flights from Incheon Intl (ICN) to Reagan-National (DCA)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Incheon Intl to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Incheon Intl to Reagan-National

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Incheon Intl to Reagan-National

Cheapest flights from Incheon Intl to Reagan-NationalExplore the most affordable flight options available from Incheon Intl to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

Explore the most affordable flight options available from Incheon Intl to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

Find flights from Incheon Intl to Reagan-National within your budget

Best time to book a flight from Incheon Intl to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Incheon Intl with our price prediction graph.

Travel insights for flights from Incheon Intl to Reagan-National

Get recent, data-driven insights about flights from Incheon Intl to Reagan-National including ideal travel times, pricing trends, and more.

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

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Reagan-National. 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. Reagan-National Airport round-trip?

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

Can I find deals for flights from Incheon Intl to Reagan-National that include hotel bookings?

How can I find direct flights from Incheon Intl to Reagan-National?

Can I find deals for business class flights from Incheon Intl to Reagan-National?

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

Traveling to a place near Incheon Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Incheon Intl to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Incheon Intl to Reagan-National

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Incheon Intl to Reagan-National
Explore the most affordable flight options available from Incheon Intl to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.