How long is the flight from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport?

Departing from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport will take you 23h 30m. The distance between Osaka Kansai Intl Airport and Washington, D.C. Dulles Intl Airport is about 6948 mi.

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 is the cheapest time of day to fly from KIX to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport as you normally would.

Can I find deals for flights from Kansai Intl to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Kansai 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 Kansai Intl to Dulles Intl.

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

Yes. Cheapflights offers flight deals from Kansai 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.

$602+ Flights from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Kansai Intl to Dulles Intl

Cheapest flights from Kansai Intl to Dulles Intl
Explore the most affordable flight options available from Kansai Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Sat 5/301:10 pm

KIX

IAD

2 stops31h 24m

Multiple Airlines

Mon 6/85:33 pm

IAD

KIX

2 stops27h 37m

Multiple Airlines

Deal found 1/27

$1,166

Fri 5/2911:10 am

KIX

IAD

2 stops33h 24m

Multiple Airlines

Mon 6/85:33 pm

IAD

KIX

2 stops27h 37m

Multiple Airlines

Deal found 1/27

$1,197

Wed 8/191:10 pm

KIX

IAD

2 stops31h 18m

Multiple Airlines

Mon 8/316:30 am

IAD

KIX

2 stops40h 40m

Multiple Airlines

Deal found 1/27

$1,228

Fri 8/2111:10 am

KIX

IAD

2 stops33h 18m

Multiple Airlines

Mon 8/316:30 am

IAD

KIX

2 stops38h 40m

Multiple Airlines

Deal found 1/27

$1,230

Fri 8/2111:10 am

KIX

IAD

2 stops33h 18m

Multiple Airlines

Tue 9/16:30 am

IAD

KIX

2 stops38h 40m

Multiple Airlines

Deal found 1/27

$1,256

Fri 8/71:25 pm

KIX

IAD

2 stops31h 07m

STARLUX Airlines

Fri 8/217:18 pm

IAD

KIX

2 stops29h 42m

STARLUX Airlines

Deal found 1/27

$1,266

Thu 4/91:10 pm

KIX

IAD

3 stops35h 13m

Multiple Airlines

Tue 4/218:20 am

IAD

KIX

2 stops24h 40m

Multiple Airlines

Deal found 1/27

$1,278

Thu 8/206:00 pm

KIX

IAD

2 stops40h 18m

Air Canada

Mon 8/314:25 pm

IAD

KIX

1 stop35h 00m

Air Canada

Deal found 1/27

$1,294

Fri 3/139:00 am

KIX

IAD

1 stop23h 30m

Air China

Fri 3/2011:00 pm

IAD

KIX

1 stop32h 10m

Air China

Deal found 1/26

$1,310

Thu 4/92:00 pm

KIX

IAD

1 stop42h 30m

Air China

Tue 4/2111:00 pm

IAD

KIX

1 stop24h 40m

Air China

Deal found 1/27

$1,330

Best flights from Kansai Intl to Dulles Intl
Discover carefully curated flight deals from Kansai 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 29, 2026.

Sat 5/301:10 pm

KIX

IAD

2 stops31h 24m

Multiple Airlines

Mon 6/85:33 pm

IAD

KIX

2 stops27h 37m

Multiple Airlines

Deal found 1/27

$1,166

Fri 3/139:00 am

KIX

IAD

1 stop23h 30m

Air China

Fri 3/2011:00 pm

IAD

KIX

1 stop32h 10m

Air China

Deal found 1/26

$1,310

Fri 3/612:20 pm

KIX

IAD

2 stops31h 20m

STARLUX Airlines

Fri 3/136:27 pm

IAD

KIX

2 stops27h 43m

STARLUX Airlines

Deal found 1/29

$1,400

Fri 5/2911:10 am

KIX

IAD

2 stops33h 24m

Multiple Airlines

Mon 6/85:33 pm

IAD

KIX

2 stops27h 37m

Multiple Airlines

Deal found 1/27

$1,197

Thu 4/91:10 pm

KIX

IAD

3 stops35h 13m

Multiple Airlines

Tue 4/211:15 pm

IAD

KIX

1 stop18h 40m

Multiple Airlines

Deal found 1/27

$1,293

Fri 3/69:00 am

KIX

IAD

1 stop23h 30m

Air China

Fri 3/1311:00 pm

IAD

KIX

1 stop32h 10m

Air China

Deal found 1/29

$1,530

Sat 3/146:10 pm

KIX

IAD

2 stops36h 10m

Multiple Airlines

Sat 3/216:50 pm

IAD

KIX

2 stops26h 05m

Multiple Airlines

Deal found 1/28

$1,485

Sat 5/27:45 am

KIX

IAD

3 stops25h 44m

Multiple Airlines

Fri 5/83:10 pm

IAD

KIX

3 stops35h 00m

Multiple Airlines

Deal found 1/27

$1,528

Last-minute flights from Kansai Intl to Dulles Intl
Discover last-minute flight deals from Kansai Intl to Dulles Intl. Data last updated January 29, 2026 and is based on user searches.

Thu 1/295:50 pm

KIX

IAD

2 stops36h 41m

American Airlines

Mon 2/25:26 pm

IAD

KIX

2 stops59h 24m

American Airlines

Deal found 1/26

$1,826

Thu 1/2911:10 pm

KIX

IAD

1 stop47h 00m

Emirates

Mon 2/210:30 am

IAD

KIX

1 stop40h 35m

Emirates

Deal found 1/26

$1,904

Thu 1/298:20 am

KIX

IAD

1 stop21h 20m

United Airlines

Mon 2/26:00 am

IAD

KIX

2 stops23h 25m

United Airlines

Deal found 1/26

$2,478

Fri 2/209:00 am

KIX

IAD

1 stop23h 30m

Air China

Fri 2/2010:00 pm

IAD

KIX

1 stop24h 40m

Air China

Deal found 1/27

$2,180

Fri 2/208:20 am

KIX

IAD

2 stops25h 07m

United Airlines

Fri 2/2010:05 pm

IAD

KIX

2 stops52h 35m

United Airlines

Deal found 1/27

$2,894

One-way flights from Kansai Intl to Dulles Intl
Search for one-way flight options from Kansai Intl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.

Thu 4/307:50 pm

KIX

IAD

3 stops51h 56m

Multiple Airlines

Deal found 1/27

$602

Fri 5/222:20 pm

KIX

IAD

2 stops54h 14m

Multiple Airlines

Deal found 1/28

$613

Wed 5/1312:00 pm

KIX

IAD

2 stops36h 23m

Multiple Airlines

Deal found 1/27

$624

Wed 4/112:50 pm

KIX

IAD

3 stops40h 49m

Multiple Airlines

Deal found 1/28

$634

Mon 4/139:00 pm

KIX

IAD

3 stops57h 22m

Multiple Airlines

Deal found 1/26

$652

Mon 5/2511:10 am

KIX

IAD

2 stops33h 24m

Multiple Airlines

Deal found 1/28

$658

Sun 5/171:10 pm

KIX

IAD

2 stops31h 24m

Multiple Airlines

Deal found 1/28

$672

Tue 4/147:05 pm

KIX

IAD

2 stops23h 35m

Multiple Airlines

Deal found 1/27

$687

Find flight deals from Kansai Intl to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,166 (Trip.com)
One-way from	$602 (Kiwi.com)

Provider with most accurate pricing for Osaka (OSA)-Washington, D.C. (WAS) flight deals.

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From Osaka Kansai Intl to Washington, D.C. Dulles Intl

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

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 5/30

1:10 pm-7:34 am

2 stops31h 24m

Washington, D.C. Dulles Intl

Mon 6/8

5:33 pm-10:10 am

2 stops27h 37m

$1,166

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 5/29

11:10 am-7:34 am

2 stops33h 24m

Washington, D.C. Dulles Intl

Mon 6/8

5:33 pm-10:10 am

2 stops27h 37m

$1,197

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 4/9

1:10 pm-11:23 am

3 stops35h 13m

Washington, D.C. Dulles Intl

Tue 4/21

1:15 pm-8:55 pm

1 stop18h 40m

$1,293

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 3/13

9:00 am-7:30 pm

1 stop23h 30m

Washington, D.C. Dulles Intl

Fri 3/20

11:00 pm-8:10 pm

1 stop32h 10m

$1,310

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 3/6

12:20 pm-5:40 am

2 stops31h 20m

Washington, D.C. Dulles Intl

Fri 3/13

6:27 pm-11:10 am

2 stops27h 43m

$1,400

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 3/14

6:10 pm-5:20 pm

2 stops36h 10m

Washington, D.C. Dulles Intl

Sat 3/21

6:50 pm-9:55 am

2 stops26h 05m

$1,485

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 5/2

7:45 am-8:29 pm

3 stops25h 44m

Washington, D.C. Dulles Intl

Fri 5/8

3:10 pm-3:10 pm

3 stops35h 00m

$1,528

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 3/6

9:00 am-6:30 pm

1 stop23h 30m

Washington, D.C. Dulles Intl

Fri 3/13

11:00 pm-8:10 pm

1 stop32h 10m

$1,530

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 4/30

7:50 pm-10:46 am

3 stops51h 56m

$602

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 5/22

2:20 pm-7:34 am

2 stops54h 14m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 18 results

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

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

Related info for your journey

How long is the flight from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport?
Departing from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport will take you 23h 30m. The distance between Osaka Kansai Intl Airport and Washington, D.C. Dulles Intl Airport is about 6948 mi.
Can I find deals for flights from Kansai Intl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Kansai Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kansai 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 Kansai Intl to Dulles Intl.
Can I find deals for business class flights from Kansai Intl to Dulles Intl?
Yes. Cheapflights offers flight deals from Kansai 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.

See more FAQs

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Springfield

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Hanover

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$602+ Cheap flights from Kansai Intl (KIX) 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kansai Intl to Dulles Intl with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kansai Intl to Dulles Intl

Cheapest flights from Kansai Intl to Dulles IntlExplore the most affordable flight options available from Kansai Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Kansai Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Kansai Intl to Dulles Intl

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Round-trip from

One-way from

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Kansai Intl with our price prediction graph.

Related info for your journey

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

Can I find deals for flights from Kansai Intl to Dulles Intl that include hotel bookings?

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Kansai Intl to Dulles Intl
Explore the most affordable flight options available from Kansai Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.