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 38h 29m. 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.

Most accurate provider : When it comes to deals on Osaka Kansai 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 Osaka Kansai 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 Osaka Kansai 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 Osaka Kansai Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Osaka Kansai 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 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.

$618+ Flights from Osaka Kansai Intl Airport to Washington, D.C. Dulles Intl Airport

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

Find cheap flights from Kansai Intl to Dulles Intl 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 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 December 16, 2025.

Fri 12/195:50 pmKIX - IAD

2 stops20h 14mAmerican Airlines

Mon 1/56:05 amIAD - KIX

2 stops24h 30mAmerican Airlines

Deal found 12/15

$1,448

Fri 12/195:50 pmKIX - IAD

2 stops28h 52mAmerican Airlines

Sun 1/46:05 amIAD - KIX

2 stops24h 30mAmerican Airlines

Deal found 12/16

$1,740

Fri 12/1912:45 pmKIX - IAD

1 stop41h 50mKLM

Mon 1/56:50 pmIAD - KIX

1 stop26h 00mKLM

Deal found 12/15

$2,019

Mon 12/224:15 pmKIX - IAD

3 stops44h 18mMultiple Airlines

Fri 1/28:15 amIAD - KIX

2 stops32h 05mMultiple Airlines

Deal found 12/15

$2,078

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 December 16, 2025.

Thu 1/292:30 pmKIX - IAD

2 stops39h 56mMultiple Airlines

Thu 2/56:04 pmIAD - KIX

2 stops29h 16mMultiple Airlines

Deal found 12/14

$1,061

Thu 3/197:25 pmKIX - IAD

2 stops38h 29mAir Canada

Tue 3/314:30 pmIAD - KIX

2 stops34h 55mAir Canada

Deal found 12/15

$1,072

Fri 1/3012:45 pmKIX - IAD

1 stop41h 50mKLM

Fri 2/65:26 pmIAD - KIX

2 stops27h 54mKLM

Deal found 12/16

$1,460

Thu 1/223:45 pmKIX - IAD

2 stops38h 01mAir Canada

Mon 1/269:00 amIAD - KIX

2 stops20h 25mAir Canada

Deal found 12/14

$1,147

Fri 1/303:45 pmKIX - IAD

2 stops18h 41mAir Canada

Fri 2/69:00 amIAD - KIX

2 stops20h 25mAir Canada

Deal found 12/16

$1,152

Thu 3/191:50 pmKIX - IAD

1 stop42h 40mMultiple Airlines

Tue 3/311:15 pmIAD - KIX

1 stop33h 05mMultiple Airlines

Deal found 12/15

$1,275

Last-minute flights from Kansai Intl to Dulles Intl
Discover last-minute flight deals from Kansai Intl to Dulles Intl. Data last updated December 16, 2025 and is based on user searches.

Fri 12/195:50 pmKIX - IAD

2 stops20h 14mAmerican Airlines

Mon 1/56:05 amIAD - KIX

2 stops24h 30mAmerican Airlines

Deal found 12/15

$1,448

Thu 1/223:45 pmKIX - IAD

2 stops38h 01mAir Canada

Mon 1/269:00 amIAD - KIX

2 stops20h 25mAir Canada

Deal found 12/14

$1,147

Thu 1/292:30 pmKIX - IAD

2 stops39h 56mMultiple Airlines

Thu 2/56:04 pmIAD - KIX

2 stops29h 16mMultiple Airlines

Deal found 12/14

$1,061

Fri 1/303:45 pmKIX - IAD

2 stops18h 41mAir Canada

Fri 2/69:00 amIAD - KIX

2 stops20h 25mAir Canada

Deal found 12/16

$1,152

Fri 1/309:00 amKIX - IAD

1 stop23h 30mAir China

Fri 2/610:00 pmIAD - KIX

1 stop32h 10mAir China

Deal found 12/16

$1,210

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 December 16, 2025.

Thu 4/301:10 pmKIX - IAD

2 stops29h 39mMultiple Airlines

Deal found 12/16

$618

Sat 4/45:25 pmKIX - IAD

3 stops59h 15mMultiple Airlines

Deal found 12/16

$849

Sat 4/47:05 pmKIX - IAD

2 stops23h 44mChina Airlines

Deal found 12/16

$870

Sun 1/1112:45 pmKIX - IAD

2 stops41h 41mChina Airlines

Deal found 12/15

$1,073

Sat 4/46:10 pmKIX - IAD

1 stop28h 35mEtihad Airways

Deal found 12/16

$1,287

Find flight deals from Kansai Intl to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,061 (Trip.com)
One-way from	$440 (Kiwi.com)

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

Search Deals

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

Search Deals

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

Search Deals

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

Search Deals

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

Thu 1/29

2:30 pm-4:26 pm

2 stops39h 56m

Washington, D.C. Dulles Intl

Thu 2/5

6:04 pm-1:20 pm

2 stops29h 16m

$1,061

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 3/19

7:25 pm-8:54 pm

2 stops38h 29m

Washington, D.C. Dulles Intl

Tue 3/31

4:30 pm-4:25 pm

2 stops34h 55m

$1,072

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 1/22

3:45 pm-3:46 pm

2 stops38h 01m

Washington, D.C. Dulles Intl

Mon 1/26

9:00 am-7:25 pm

2 stops20h 25m

$1,147

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 1/30

3:45 pm-8:26 pm

2 stops18h 41m

Washington, D.C. Dulles Intl

Fri 2/6

9:00 am-7:25 pm

2 stops20h 25m

$1,152

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 3/19

1:50 pm-7:30 pm

1 stop42h 40m

Washington, D.C. Dulles Intl

Tue 3/31

1:15 pm-11:20 am

1 stop33h 05m

$1,275

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 1/30

12:45 pm-4:35 pm

1 stop41h 50m

Washington, D.C. Dulles Intl

Fri 2/6

5:26 pm-11:20 am

2 stops27h 54m

$1,460

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 4/30

1:10 pm-5:49 am

2 stops29h 39m

$618

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 4/4

5:25 pm-3:40 pm

3 stops59h 15m

$849

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 4/4

7:05 pm-5:49 am

2 stops23h 44m

$870

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sun 1/11

12:45 pm-4:26 pm

2 stops41h 41m

$1,073

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 11 results

Most accurate provider: When it comes to deals on Osaka Kansai 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 Osaka Kansai 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 Osaka Kansai 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 Osaka Kansai Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Osaka Kansai 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 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 38h 29m. 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

Browse thousands of different options on Cheapflights for your next trip

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.

$618+ 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

1. Tell us where you want to go

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 December 16, 2025.

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 December 16, 2025.

Find flight deals from Kansai Intl to Dulles Intl

Most accurate provider

Most trusted provider

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?

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 Kansai Intl to Dulles Intl

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

100% Free

Book with Flexibility

Travel Smart

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 December 16, 2025.