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

Currently priced at $688, Air Canada will fly you from Incheon Intl Airport to Washington, D.C. Reagan-National Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. This flight start at 32% lower than the current average price 3 months from now.

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.

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.

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).

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 $597.

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.

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.

$336+ 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 47 days in advance to save up to 124% 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 47 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 $827, or $1,442 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

Round-trip from	$336 (flugladen.de)
Popular in	January
Cheapest in	April
Average price	$1,048

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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($165 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($70 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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 September 11, 2025.

Fri 10/245:45 pmICN - DCA

2 stops31h 23mAir Canada

Sun 11/94:10 pmDCA - ICN

2 stops35h 00mAir Canada

Deal found 9/10

$336

Sat 10/115:45 pmICN - DCA

2 stops31h 23mAir Canada

Sun 10/2612:55 pmDCA - ICN

2 stops38h 15mAir Canada

Deal found 9/11

$349

Sat 9/207:05 pmICN - DCA

2 stops30h 03mAir Canada

Thu 9/259:40 amDCA - ICN

1 stop17h 35mAir Canada

Deal found 9/10

$382

Sun 12/148:10 pmICN - DCA

1 stop16h 25mAir Canada

Thu 1/228:40 pmDCA - ICN

2 stops30h 30mAir Canada

Deal found 9/10

$393

Sun 12/148:10 pmICN - DCA

1 stop16h 25mAir Canada

Wed 1/219:40 amDCA - ICN

1 stop18h 45mAir Canada

Deal found 9/10

$403

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 September 11, 2025.

Sat 10/115:45 pmICN - DCA

2 stops31h 23mAir Canada

Sun 10/269:40 amDCA - ICN

1 stop18h 45mAir Canada

Deal found 9/11

$374

Sun 12/148:10 pmICN - DCA

1 stop16h 25mAir Canada

Thu 1/229:40 amDCA - ICN

2 stops41h 30mAir Canada

Deal found 9/11

$393

Thu 10/308:35 pmICN - DCA

2 stops58h 23mAlaska Airlines

Wed 11/58:00 amDCA - ICN

2 stops45h 25mAlaska Airlines

Deal found 9/10

$855

Sun 10/126:00 pmICN - DCA

1 stop34h 51mAir Canada

Sat 10/256:00 amDCA - ICN

2 stops45h 10mAir Canada

Deal found 9/11

$485

Mon 2/28:35 pmICN - DCA

2 stops34h 57mAlaska Airlines

Fri 2/205:10 pmDCA - ICN

2 stops35h 25mAlaska Airlines

Deal found 9/11

$880

Sat 11/88:10 pmICN - DCA

1 stop35h 55mAir Canada

Fri 11/219:40 amDCA - ICN

1 stop18h 45mAir Canada

Deal found 9/11

$812

Tue 3/36:55 pmICN - DCA

2 stops31h 24mAir Canada

Wed 7/84:30 pmDCA - ICN

1 stop34h 45mAir Canada

Deal found 9/11

$834

Last-minute flights from Incheon Intl to Reagan-National
Discover last-minute flight deals from Incheon Intl to Reagan-National. Data last updated September 11, 2025 and is based on user searches.

Sat 9/207:05 pmICN - DCA

2 stops30h 03mAir Canada

Thu 9/259:40 amDCA - ICN

1 stop17h 35mAir Canada

Deal found 9/10

$382

Sat 10/115:45 pmICN - DCA

2 stops31h 23mAir Canada

Sun 10/2612:55 pmDCA - ICN

2 stops38h 15mAir Canada

Deal found 9/11

$349

Fri 10/245:45 pmICN - DCA

2 stops31h 23mAir Canada

Sun 11/94:10 pmDCA - ICN

2 stops35h 00mAir Canada

Deal found 9/10

$336

Thu 10/305:55 pmICN - DCA

2 stops31h 24mAir Canada

Wed 11/512:55 pmDCA - ICN

2 stops38h 15mAir Canada

Deal found 9/10

$472

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 September 11, 2025.

Wed 9/246:00 pmICN - DCA

2 stops31h 08mAir Canada

Deal found 9/11

$441

Fri 9/196:00 pmICN - DCA

2 stops27h 59mAir Canada

Deal found 9/10

$447

Sun 11/166:55 pmICN - DCA

2 stops31h 09mMultiple Airlines

Deal found 9/11

$468

Sun 11/26:55 pmICN - DCA

2 stops41h 04mMultiple Airlines

Deal found 9/11

$471

Mon 12/88:35 pmICN - DCA

2 stops39h 24mMultiple Airlines

Deal found 9/11

$476

Sun 10/196:00 pmICN - DCA

1 stop34h 51mAir Canada

Deal found 9/10

$477

Tue 11/116:55 pmICN - DCA

3 stops29h 31mAir Canada

Deal found 9/11

$478

Thu 10/26:20 pmICN - DCA

2 stops40h 39mMultiple Airlines

Deal found 9/10

$482

Wed 12/106:55 pmICN - DCA

2 stops36h 04mMultiple Airlines

Deal found 9/11

$486

Sun 10/199:40 pmICN - DCA

3 stops56h 19mMultiple Airlines

Deal found 9/10

$489

Fri 9/266:00 pmICN - DCA

2 stops38h 44mAir Canada

Deal found 9/11

$516

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sat 10/11

5:45 pm-12:08 pm

2 stops31h 23m

Washington, D.C. Reagan-National

Sun 10/26

9:40 am-5:25 pm

1 stop18h 45m

$374

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sun 12/14

8:10 pm-10:35 pm

1 stop16h 25m

Washington, D.C. Reagan-National

Thu 1/22

9:40 am-5:10 pm

2 stops41h 30m

$393

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sun 10/12

6:00 pm-3:51 pm

1 stop34h 51m

Washington, D.C. Reagan-National

Sat 10/25

6:00 am-4:10 pm

2 stops45h 10m

$485

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sat 11/8

8:10 pm-6:05 pm

1 stop35h 55m

Washington, D.C. Reagan-National

Fri 11/21

9:40 am-6:25 pm

1 stop18h 45m

$812

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 3/3

6:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Wed 7/8

4:30 pm-4:15 pm

1 stop34h 45m

$834

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 10/30

8:35 pm-5:58 pm

2 stops58h 23m

Washington, D.C. Reagan-National

Wed 11/5

8:00 am-7:25 pm

2 stops45h 25m

$855

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 2/2

8:35 pm-5:32 pm

2 stops34h 57m

Washington, D.C. Reagan-National

Fri 2/20

5:10 pm-6:35 pm

2 stops35h 25m

$880

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/24

6:00 pm-12:08 pm

2 stops31h 08m

$441

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 9/19

6:00 pm-8:59 am

2 stops27h 59m

$447

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Sun 11/16

9:25 pm-4:59 pm

3 stops57h 34m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results

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.

Cheapflights Insights

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

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 March is currently the most expensive (average of $335). 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.

Reviews of airlines servicing Reagan-National

Read reviews from past customers who have flown Air Canada from Incheon Intl Airport to Washington, D.C. Reagan-National Airport. 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.

Air Canada

7.1

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

YVR - LAX

Seamless in all ways..arriving 25 minutes early into Los Angeles was outstanding

Air Canada

7.1

Good

10,000 reviews

Air Canada

7.1

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

YVR - LAX

Seamless in all ways..arriving 25 minutes early into Los Angeles was outstanding

Related info for your journey

How long is the flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport?
For as low as $374, Air Canada can have you in Washington, D.C. Reagan-National Airport from Incheon Intl Airport in 31h 23m. There are 6953 mi between Incheon Intl Airport and Washington, D.C. Reagan-National Airport.
What is the cheapest airline to fly from Incheon Intl Airport to Washington, D.C. Reagan-National Airport round-trip?
Currently priced at $688, Air Canada will fly you from Incheon Intl Airport to Washington, D.C. Reagan-National Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. This flight start at 32% lower than the current average price 3 months from now.
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 March is currently the most expensive (average of $335). 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

Woodbridge

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Incheon Intl to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$688	Average$994	FlexibilityNo cancel fee	On-time67%

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.

$336+ Cheap flights from Incheon Intl (ICN) to Reagan-National (DCA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. 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

Round-trip 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 September 11, 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 September 11, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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

Reviews of airlines servicing Reagan-National

Read reviews from past customers who have flown Air Canada from Incheon Intl Airport to Washington, D.C. Reagan-National Airport. 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.

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.

How long is the flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport?

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

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 Washington, D.C. Reagan-National 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 airline 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 September 11, 2025.