Which airline has the best punctuality record on Incheon to Washington, D.C. flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 19% of flights being delayed.

How often are flights from Incheon to Washington, D.C. delayed?

About 19% of weekly flights between Incheon and Washington, D.C. have experienced delays in the past year, with the average delay time being 131 minutes.

What is the most punctual flight time for Incheon to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

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

One-way options have recently been found by users for as low as $440 on American Airlines. Other airlines that offer cheap prices include United Airlines from $443 and Korean Air from $776 one-way.

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

The most flights from ICN to IAD 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).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl 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. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl 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 are the most popular airlines that fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

Consider Korean Air, United Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.

Most accurate provider : When it comes to deals on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. Dulles Intl 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. Dulles Intl Airport flights, Cheapflights users trust Gurufare the most. Gurufare 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. Dulles Intl 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 Dulles Intl that include hotel bookings?

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

How can I find direct flights from Incheon Intl to Dulles Intl?

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

Can I find deals for business class flights from Incheon Intl to Dulles Intl?

Yes. Cheapflights offers flight deals from Incheon Intl to Dulles 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.

$463+ Flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

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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.

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Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. Dulles Intl are usually found in November or February, booked 31 days in advance, depart on a Sunday or Tuesday and return on a Tuesday

Cheap flight deals from Incheon Intl to Dulles Intl

Cheapest flights from Incheon Intl to Dulles Intl
Explore the most affordable flight options available from Incheon Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Wed 12/3112:45 pmICN - IAD

2 stops22h 40mUnited Airlines

Wed 1/72:10 pmIAD - ICN

1 stop25h 30mUnited Airlines

Deal found 12/30

$896

Wed 12/318:40 pmICN - IAD

1 stop18h 05mAsiana Airlines

Wed 1/76:00 pmIAD - ICN

1 stop21h 45mAsiana Airlines

Deal found 12/30

$1,269

Wed 12/315:55 pmICN - IAD

2 stops31h 53mAir Canada

Wed 1/79:45 amIAD - ICN

2 stops40h 15mAir Canada

Deal found 12/30

$1,314

Wed 12/319:35 amICN - IAD

1 stop16h 17mDelta

Wed 1/77:49 pmIAD - ICN

1 stop20h 41mDelta

Deal found 12/30

$1,444

Wed 12/319:35 amICN - IAD

1 stop16h 17mKorean Air

Wed 1/711:50 amIAD - ICN

Nonstop15h 50mKorean Air

Deal found 12/30

$1,565

Tue 12/3012:10 amICN - IAD

1 stop25h 35mTurkish Airlines

Fri 1/99:15 pmIAD - ICN

1 stop31h 05mTurkish Airlines

Deal found 12/29

$5,318

Wed 12/317:30 pmICN - IAD

1 stop16h 43mKorean Air

Fri 1/911:50 amIAD - ICN

Nonstop15h 50mKorean Air

Deal found 12/29

$5,998

Wed 12/3110:15 amICN - IAD

Nonstop13h 35mMultiple Airlines

Fri 1/910:30 pmIAD - ICN

3 stops47h 35mMultiple Airlines

Deal found 12/29

$6,030

Wed 12/315:55 pmICN - IAD

2 stops31h 40mAir Canada

Fri 1/95:48 pmIAD - ICN

2 stops32h 12mAir Canada

Deal found 12/29

$6,056

Best flights from Incheon Intl to Dulles Intl
Discover carefully curated flight deals from Incheon Intl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 1, 2026.

Fri 2/2712:45 pmICN - IAD

1 stop22h 03mUnited Airlines

Mon 3/22:12 pmIAD - ICN

2 stops25h 28mUnited Airlines

Deal found 12/31

$618

Tue 2/247:15 pmICN - IAD

1 stop17h 38mAmerican Airlines

Thu 5/216:22 amIAD - ICN

1 stop44h 23mAmerican Airlines

Deal found 12/30

$750

Fri 3/66:00 pmICN - IAD

1 stop21h 03mUnited Airlines

Mon 3/912:45 pmIAD - ICN

2 stops26h 55mUnited Airlines

Deal found 12/31

$618

Thu 3/195:00 pmICN - IAD

2 stops25h 17mUnited Airlines

Tue 3/246:03 pmIAD - ICN

1 stop21h 37mUnited Airlines

Deal found 12/31

$619

Thu 1/2912:45 pmICN - IAD

1 stop20h 50mUnited Airlines

Wed 2/114:10 pmIAD - ICN

1 stop23h 30mUnited Airlines

Deal found 12/31

$620

Thu 1/2912:45 pmICN - IAD

1 stop22h 09mUnited Airlines

Thu 2/58:15 amIAD - ICN

2 stops31h 25mUnited Airlines

Deal found 12/30

$621

Mon 2/236:00 pmICN - IAD

1 stop25h 27mUnited Airlines

Sun 3/110:30 pmIAD - ICN

2 stops27h 45mUnited Airlines

Deal found 12/29

$621

Wed 2/1112:45 pmICN - IAD

1 stop22h 09mUnited Airlines

Mon 3/96:03 pmIAD - ICN

1 stop21h 37mUnited Airlines

Deal found 12/30

$621

Thu 1/2912:45 pmICN - IAD

1 stop20h 50mUnited Airlines

Fri 2/610:20 pmIAD - ICN

1 stop27h 55mUnited Airlines

Deal found 12/30

$656

Last-minute flights from Incheon Intl to Dulles Intl
Discover last-minute flight deals from Incheon Intl to Dulles Intl. Data last updated January 1, 2026 and is based on user searches.

Wed 12/3112:45 pmICN - IAD

1 stop22h 10mUnited Airlines

Wed 1/72:10 pmIAD - ICN

1 stop25h 30mUnited Airlines

Deal found 12/30

$896

Thu 1/157:15 pmICN - IAD

1 stop35h 15mAmerican Airlines

Mon 1/195:46 pmIAD - ICN

2 stops32h 59mAmerican Airlines

Deal found 12/30

$911

Thu 1/2912:45 pmICN - IAD

1 stop20h 50mUnited Airlines

Wed 2/117:45 pmIAD - ICN

1 stop30h 30mUnited Airlines

Deal found 12/30

$619

Thu 1/2912:45 pmICN - IAD

1 stop32h 02mUnited Airlines

Thu 2/56:15 pmIAD - ICN

1 stop21h 25mUnited Airlines

Deal found 12/30

$621

Thu 1/2912:45 pmICN - IAD

1 stop20h 50mUnited Airlines

Fri 2/610:28 pmIAD - ICN

2 stops27h 47mUnited Airlines

Deal found 12/30

$726

Fri 1/308:35 pmICN - IAD

1 stop33h 51mHawaiian Airlines

Fri 2/66:04 pmIAD - ICN

1 stop34h 31mHawaiian Airlines

Deal found 12/30

$581

Fri 1/306:00 pmICN - IAD

2 stops31h 23mUnited Airlines

Fri 2/610:28 pmIAD - ICN

2 stops27h 47mUnited Airlines

Deal found 12/30

$656

Sat 1/318:35 pmICN - IAD

1 stop33h 51mMultiple Airlines

Sat 2/76:04 pmIAD - ICN

1 stop34h 31mMultiple Airlines

Deal found 12/30

$608

Sat 1/3112:45 pmICN - IAD

2 stops20h 36mUnited Airlines

Sat 2/72:10 pmIAD - ICN

1 stop25h 30mUnited Airlines

Deal found 12/30

$691

One-way flights from Incheon Intl to Dulles Intl
Search for one-way flight options from Incheon Intl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated January 1, 2026.

Sat 2/216:55 pmICN - IAD

2 stops29h 20mMultiple Airlines

Deal found 12/31

$463

Sun 5/249:10 pmICN - IAD

2 stops33h 40mMultiple Airlines

Deal found 12/30

$520

Sat 4/259:10 pmICN - IAD

2 stops33h 04mMultiple Airlines

Deal found 12/30

$537

Sun 4/269:10 pmICN - IAD

3 stops33h 04mMultiple Airlines

Deal found 12/30

$542

Fri 2/205:55 pmICN - IAD

2 stops41h 23mAir Canada

Deal found 12/30

$551

Sat 5/309:10 pmICN - IAD

2 stops30h 46mMultiple Airlines

Deal found 12/31

$555

Find flight deals from Incheon Intl to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$481 (American Airlines)
One-way from	$463 (Kiwi.com)
Popular in	August
Cheapest in	November
Average price	$1,497
Good round-trip deal	$1,301 or less
Good one-way deal	$1,062 or less

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

Search Deals

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

Search Deals

From Incheon Intl to Washington, D.C. Dulles Intl

Search Deals

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

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($129 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Price to beat on a round-trip flight from Incheon Intl to Washington, D.C. Dulles Intl.

Search Deals

Price to beat on a one-way flight from Incheon Intl to Washington, D.C. Dulles Intl.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 2/27

12:45 pm-8:48 pm

1 stop22h 03m

Washington, D.C. Dulles Intl

Mon 3/2

2:12 pm-5:40 am

2 stops25h 28m

$618

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 3/6

6:00 pm-1:03 am

1 stop21h 03m

Washington, D.C. Dulles Intl

Mon 3/9

12:45 pm-4:40 am

2 stops26h 55m

$618

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 3/19

5:00 pm-5:17 am

2 stops25h 17m

Washington, D.C. Dulles Intl

Tue 3/24

6:03 pm-4:40 am

1 stop21h 37m

$619

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 1/29

12:45 pm-7:35 pm

1 stop20h 50m

Washington, D.C. Dulles Intl

Wed 2/11

4:10 pm-5:40 am

1 stop23h 30m

$620

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 1/29

12:45 pm-8:54 pm

1 stop22h 09m

Washington, D.C. Dulles Intl

Thu 2/5

8:15 am-5:40 am

2 stops31h 25m

$621

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 2/23

6:00 pm-5:27 am

1 stop25h 27m

Washington, D.C. Dulles Intl

Sun 3/1

10:30 pm-4:15 pm

2 stops27h 45m

$621

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 2/11

12:45 pm-8:54 pm

1 stop22h 09m

Washington, D.C. Dulles Intl

Mon 3/9

6:03 pm-4:40 am

1 stop21h 37m

$621

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 1/29

12:45 pm-7:35 pm

1 stop20h 50m

Washington, D.C. Dulles Intl

Fri 2/6

10:20 pm-4:15 pm

1 stop27h 55m

$656

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 2/24

7:15 pm-10:53 pm

1 stop17h 38m

Washington, D.C. Dulles Intl

Thu 5/21

6:22 am-3:45 pm

1 stop44h 23m

$750

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Sun 5/24

9:10 pm-5:50 pm

2 stops33h 40m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 19 results

Compare providers for flights from Incheon Intl to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Incheon Intl to Dulles Intl in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
Gurufare	Price Accuracy2 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Incheon Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. Dulles Intl 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. Dulles Intl Airport flights, Cheapflights users trust Gurufare the most. Gurufare 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. Dulles Intl 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

Prices

Airlines

Delays

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

To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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 IAD?

When flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Incheon Intl Airport to Washington, D.C. Dulles Intl Airport trip

Airports

ICN

Plan for a 20-minute wait at security in ICN, especially if flying premium cabin without fast track access.

IAD

Use the Silver Line Metro to reach downtown from IAD in under 40 minutes, a cost-effective option for city access.

Our travel experts

Gabriel Leigh

Expert on ICN

Ramsey Qubein

Expert on IAD

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Korean Air, Delta, and United Airlines from Incheon Intl Airport to Washington, D.C. Dulles 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.

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Korean Air

8.4

Very good

1,184 reviews

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Delta

7.9

Good

8,017 reviews

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

United Airlines

7.4

Good

9,128 reviews

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

American Airlines

7.2

Good

11,071 reviews

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Air Canada

7.1

Good

10,571 reviews

Korean Air

8.4

Very good

1,184 reviews

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Related info for your journey

How long is the flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
United Airlines can get you from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in just under 22h 03m. Your travel time can differ by up to . The distance from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport is about 6939 mi.
What are the cheapest airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport round-trip from $501. Other airlines that can offer you cheap pricing are United Airlines, from $512, and Air Canada, from $727. These flights start at 60% 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. Dulles Intl Airport one-way?
One-way options have recently been found by users for as low as $440 on American Airlines. Other airlines that offer cheap prices include United Airlines from $443 and Korean Air from $776 one-way.
What are the cheapest flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for $925. While the most popular route (Incheon Intl - Washington, D.C. Dulles Intl) can be booked for $501 on average, our data indicates $1,229 when flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Incheon Intl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Incheon Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Incheon Intl to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to Dulles Intl.
Can I find deals for business class flights from Incheon Intl to Dulles Intl?
Yes. Cheapflights offers flight deals from Incheon Intl to Dulles 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 Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (average of $439). Flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $1,022). 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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Top 5 airlines flying from Incheon Intl to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$501	Average$723	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$512	Average$732	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$727	Average$965	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$1,208	Average$1,494	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$1,254	Average$1,578	FlexibilityNo cancel fee	On-timeN/A

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$463+ Cheap flights from Incheon Intl (ICN) to Dulles Intl (IAD)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Incheon Intl to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. Dulles Intl are usually found in November or February, booked 31 days in advance, depart on a Sunday or Tuesday and return on a Tuesday

Cheap flight deals from Incheon Intl to Dulles Intl

Cheapest flights from Incheon Intl to Dulles IntlExplore the most affordable flight options available from Incheon Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Explore the most affordable flight options available from Incheon Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Find flight deals from Incheon Intl to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Compare providers for flights from Incheon Intl to Dulles Intl

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 Dulles Intl in January.

Best time to book a flight from Incheon Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

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

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

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

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

How often are flights from Incheon to Washington, D.C. delayed?

What is the most punctual flight time for Incheon to Washington, D.C. flights?

What day of the week experiences the fewest flight delays on this route?

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The best insider tips for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flights

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Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Korean Air, Delta, and United Airlines from Incheon Intl Airport to Washington, D.C. Dulles 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.

Related info for your journey

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

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

What are the cheapest flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?

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Top 5 airlines flying from Incheon Intl to Dulles Intl

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Cheapest flights from Incheon Intl to Dulles Intl
Explore the most affordable flight options available from Incheon Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.