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

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

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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

The most popular airlines flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport are American Airlines, Air Canada and Korean Air. Something to consider prior to booking your flight.

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

Users have found that flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

The best pricing can be found in the month of January. Prices to Incheon Intl Airport from Washington, D.C. Reagan-National Airport average $1,332. You can even find prices in January for less than $1,332, as users have found deals to Incheon Intl Airport from as low as $863. The month of June appears to be one of the more expensive times to travel to Incheon Intl Airport from Washington, D.C. Reagan-National Airport. Flying in the targeted month can save you up to 36%.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Reagan-National 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.

$346+ Flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport

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

Travelers have found it’s best to book a flight 19 days in advance to save up to 114% 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 19 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 Washington, D.C. Reagan-National Airport to Incheon Intl Airport 1-2 weeks in advance for as low as $977, or $1,352 for flights within the next 24 hours.

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Cheap flight deals from Reagan-National to Incheon Intl

Round-trip from	$908 (Mytrip)
One-way from	$346 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,218

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

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

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Highest demand for flights based on searches. 18% potential increase in price ($280 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($59 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Reagan-National to Incheon Intl

Cheapest flights from Reagan-National to Incheon Intl
Explore the most affordable flight options available from Reagan-National to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Mon 9/228:40 pmDCA - ICN

2 stops35h 55mMultiple Airlines

Tue 10/78:45 pmICN - DCA

3 stops28h 23mMultiple Airlines

Deal found 9/9

$869

Wed 9/244:35 pmDCA - ICN

1 stop34h 40mAir Canada

Fri 10/315:55 pmICN - DCA

2 stops41h 01mAir Canada

Deal found 9/11

$929

Tue 9/169:40 amDCA - ICN

1 stop17h 35mAir Canada

Sat 9/205:45 pmICN - DCA

2 stops28h 14mAir Canada

Deal found 9/10

$935

Mon 9/2212:55 pmDCA - ICN

3 stops34h 35mMultiple Airlines

Wed 9/246:00 pmICN - DCA

1 stop16h 51mMultiple Airlines

Deal found 9/9

$936

Tue 9/239:40 amDCA - ICN

1 stop17h 35mAir Canada

Tue 10/75:45 pmICN - DCA

2 stops29h 35mAir Canada

Deal found 9/11

$940

Sun 9/1411:00 amDCA - ICN

1 stop17h 30mAir Canada

Sat 10/115:45 pmICN - DCA

2 stops28h 14mAir Canada

Deal found 9/11

$942

Tue 9/239:40 amDCA - ICN

1 stop17h 35mAir Canada

Thu 10/97:05 pmICN - DCA

1 stop16h 29mAir Canada

Deal found 9/11

$946

Wed 9/2411:00 amDCA - ICN

1 stop17h 30mAir Canada

Tue 10/77:05 pmICN - DCA

1 stop16h 29mAir Canada

Deal found 9/11

$953

Sat 10/48:40 pmDCA - ICN

2 stops35h 55mMultiple Airlines

Wed 10/86:00 pmICN - DCA

1 stop29h 20mMultiple Airlines

Deal found 9/9

$954

Best flights from Reagan-National to Incheon Intl
Discover carefully curated flight deals from Reagan-National to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Thu 9/256:00 amDCA - ICN

1 stop21h 15mAir Canada

Wed 10/226:00 pmICN - DCA

1 stop34h 51mAir Canada

Deal found 9/11

$929

Mon 10/276:58 pmDCA - ICN

2 stops32h 12mMultiple Airlines

Mon 11/36:55 pmICN - DCA

1 stop37h 03mMultiple Airlines

Deal found 9/11

$1,023

Thu 9/255:30 pmDCA - ICN

2 stops30h 10mCathay Pacific

Wed 10/221:40 pmICN - DCA

2 stops48h 19mCathay Pacific

Deal found 9/11

$1,141

Fri 10/316:58 pmDCA - ICN

2 stops34h 37mAlaska Airlines

Fri 12/58:35 pmICN - DCA

2 stops35h 24mAlaska Airlines

Deal found 9/10

$1,184

Mon 10/2711:05 amDCA - ICN

2 stops40h 05mAir Canada

Mon 11/38:10 pmICN - DCA

2 stops28h 16mAir Canada

Deal found 9/11

$1,133

Wed 10/2212:31 pmDCA - ICN

2 stops36h 34mCathay Pacific

Tue 10/2810:05 amICN - DCA

2 stops27h 54mCathay Pacific

Deal found 9/11

$1,189

Tue 10/286:58 pmDCA - ICN

2 stops59h 27mAlaska Airlines

Fri 11/78:35 pmICN - DCA

2 stops35h 23mAlaska Airlines

Deal found 9/11

$1,198

Tue 10/218:40 pmDCA - ICN

2 stops30h 25mAir Canada

Tue 11/46:55 pmICN - DCA

2 stops28h 00mAir Canada

Deal found 9/11

$1,139

Mon 10/2712:31 pmDCA - ICN

2 stops36h 24mCathay Pacific

Wed 11/51:50 pmICN - DCA

2 stops42h 54mCathay Pacific

Deal found 9/11

$1,189

Mon 10/206:00 amDCA - ICN

2 stops22h 30mAir Canada

Mon 11/38:10 pmICN - DCA

2 stops28h 16mAir Canada

Deal found 9/11

$1,139

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

Sun 9/1411:00 amDCA - ICN

1 stop17h 30mAir Canada

Sat 10/115:45 pmICN - DCA

2 stops28h 14mAir Canada

Deal found 9/11

$942

Tue 9/169:40 amDCA - ICN

1 stop17h 35mAir Canada

Sat 9/207:05 pmICN - DCA

1 stop35h 59mAir Canada

Deal found 9/10

$935

Mon 9/228:40 pmDCA - ICN

2 stops35h 55mMultiple Airlines

Tue 10/78:45 pmICN - DCA

3 stops28h 23mMultiple Airlines

Deal found 9/9

$869

Mon 9/2212:55 pmDCA - ICN

3 stops34h 35mMultiple Airlines

Wed 9/246:00 pmICN - DCA

1 stop16h 51mMultiple Airlines

Deal found 9/9

$936

Tue 9/239:40 amDCA - ICN

1 stop17h 35mAir Canada

Wed 10/86:00 pmICN - DCA

1 stop16h 51mAir Canada

Deal found 9/11

$940

Tue 9/239:40 amDCA - ICN

1 stop17h 35mAir Canada

Thu 10/97:05 pmICN - DCA

1 stop16h 29mAir Canada

Deal found 9/11

$946

Wed 9/244:35 pmDCA - ICN

1 stop34h 40mAir Canada

Fri 10/315:55 pmICN - DCA

2 stops41h 01mAir Canada

Deal found 9/11

$929

Wed 9/2411:00 amDCA - ICN

1 stop17h 30mAir Canada

Thu 10/97:05 pmICN - DCA

1 stop16h 29mAir Canada

Deal found 9/11

$953

Sat 10/48:40 pmDCA - ICN

2 stops35h 55mMultiple Airlines

Wed 10/86:00 pmICN - DCA

1 stop29h 20mMultiple Airlines

Deal found 9/9

$954

One-way flights from Reagan-National to Incheon Intl
Search for one-way flight options from Reagan-National to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Mon 10/66:31 pmDCA - ICN

2 stops32h 14mMultiple Airlines

Deal found 9/11

$346

Fri 11/76:00 pmDCA - ICN

2 stops32h 10mMultiple Airlines

Deal found 9/11

$411

Tue 10/216:31 pmDCA - ICN

2 stops32h 14mMultiple Airlines

Deal found 9/10

$428

Sun 11/91:00 pmDCA - ICN

2 stops37h 10mMultiple Airlines

Deal found 9/11

$431

Tue 9/234:35 pmDCA - ICN

3 stops34h 30mAir Canada

Deal found 9/10

$449

Mon 9/228:40 pmDCA - ICN

2 stops35h 55mMultiple Airlines

Deal found 9/10

$450

Tue 11/118:15 amDCA - ICN

2 stops41h 55mMultiple Airlines

Deal found 9/11

$452

Mon 11/106:00 pmDCA - ICN

3 stops59h 25mMultiple Airlines

Deal found 9/11

$458

Sat 11/86:00 pmDCA - ICN

2 stops45h 20mMultiple Airlines

Deal found 9/11

$462

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/25

6:00 am-4:15 pm

1 stop21h 15m

Incheon Intl

Wed 10/22

6:00 pm-3:51 pm

1 stop34h 51m

$929

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/27

6:58 pm-4:10 pm

2 stops32h 12m

Incheon Intl

Mon 11/3

6:55 pm-5:58 pm

1 stop37h 03m

$1,023

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/27

11:05 am-4:10 pm

2 stops40h 05m

Incheon Intl

Mon 11/3

8:10 pm-10:26 am

2 stops28h 16m

$1,133

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/21

8:40 pm-4:05 pm

2 stops30h 25m

Incheon Intl

Tue 11/4

6:55 pm-8:55 am

2 stops28h 00m

$1,139

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/20

6:00 am-5:30 pm

2 stops22h 30m

Incheon Intl

Mon 11/3

8:10 pm-10:26 am

2 stops28h 16m

$1,139

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/25

5:30 pm-12:40 pm

2 stops30h 10m

Incheon Intl

Wed 10/22

1:40 pm-12:59 am

2 stops48h 19m

$1,141

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 10/31

6:58 pm-6:35 pm

2 stops34h 37m

Incheon Intl

Fri 12/5

8:35 pm-5:59 pm

2 stops35h 24m

$1,184

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/22

12:31 pm-2:05 pm

2 stops36h 34m

Incheon Intl

Tue 10/28

10:05 am-12:59 am

2 stops27h 54m

$1,189

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 10/27

12:31 pm-1:55 pm

2 stops36h 24m

Incheon Intl

Wed 11/5

1:50 pm-6:44 pm

2 stops42h 54m

$1,189

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 10/28

6:58 pm-7:25 pm

2 stops59h 27m

Incheon Intl

Fri 11/7

8:35 pm-5:58 pm

2 stops35h 23m

$1,198

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results

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

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

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport (average of $990). Flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport in December is currently the most expensive (average of $1,633). 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 DCA to ICN?

When flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 32% versus a flight at noon.

Reviews of airlines servicing Incheon Intl

Peruse reviews from past customers who have flown with Korean Air, American Airlines, and Air Canada from Washington, D.C. Reagan-National Airport to Incheon Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,139 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

American Airlines

7.2

Good

10,000 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Air Canada

7.1

Good

10,000 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport?
A quick flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport can take about 21h 15m. Air Canada provides one of the quickest options available for as low as $929. The distance from Washington, D.C. Reagan-National Airport to Incheon Intl Airport is about 6953 mi.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport round-trip?
According to our current data, Air Canada ($864), American Airlines ($877), and Korean Air ($1,440) offers the cheapest pricing from Washington, D.C. Reagan-National Airport to Incheon Intl Airport. You may be able to fly from Washington, D.C. Reagan-National Airport to Incheon Intl Airport for 31% less than the average price by searching for these airlines.
Can I find deals for flights from Reagan-National to Incheon Intl that include hotel bookings?
Yes. In addition to deals on Reagan-National to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Incheon Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Incheon Intl.
Can I find deals for business class flights from Reagan-National to Incheon Intl?
Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Incheon Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport (average of $990). Flying from Washington, D.C. Reagan-National Airport to Incheon Intl Airport in December is currently the most expensive (average of $1,633). 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.

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Seongnam

Daejeon

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Top 3 airlines flying from Reagan-National to Incheon Intl

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$864	Average$1,229	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$877	Average$903	FlexibilityNo cancel fee	On-time71%
Korean Air	Cheapest$1,440	Average$1,898	FlexibilityNo cancel fee	On-time81%

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$346+ Cheap flights from Reagan-National (DCA) 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

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

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Cheap flight deals from Reagan-National to Incheon Intl

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Find flight deals from Reagan-National to Incheon Intl

Cheapest flights from Reagan-National to Incheon IntlExplore the most affordable flight options available from Reagan-National to Incheon Intl. 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 Reagan-National to Incheon Intl. 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 Washington, D.C. Reagan-National Airport to Incheon Intl Airport that are best for you.

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

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

Cheapflights Insights

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

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

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

Reviews of airlines servicing Incheon Intl

Related info for your journey

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

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

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

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

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

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

Traveling to a place near Incheon Intl Airport?

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Alternative routes for Reagan-National to Incheon Intl

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Top 3 airlines flying from Reagan-National to Incheon Intl

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Cheapest flights from Reagan-National to Incheon Intl
Explore the most affordable flight options available from Reagan-National to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.