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.

$540+ 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

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 29, 2025.

Thu 4/166:30 pmKIX - IAD

2 stops24h 10mMultiple Airlines

Wed 4/297:20 pmIAD - KIX

2 stops25h 50mMultiple Airlines

Deal found 12/27

$1,082

Wed 2/1112:45 pmKIX - IAD

1 stop41h 50mKLM

Wed 2/186:50 pmIAD - KIX

1 stop26h 00mKLM

Deal found 12/28

$1,455

Wed 2/117:50 amKIX - IAD

3 stops27h 04mMultiple Airlines

Wed 2/1811:10 amIAD - KIX

1 stop20h 40mMultiple Airlines

Deal found 12/27

$1,129

Tue 2/1011:05 amKIX - IAD

2 stops23h 24mMultiple Airlines

Tue 2/1711:50 amIAD - KIX

1 stop18h 55mMultiple Airlines

Deal found 12/26

$1,293

Sun 4/1211:10 amKIX - IAD

2 stops31h 30mMultiple Airlines

Sun 4/197:00 amIAD - KIX

2 stops40h 10mMultiple Airlines

Deal found 12/27

$1,317

Thu 2/127:50 amKIX - IAD

2 stops27h 04mMultiple Airlines

Thu 2/199:00 amIAD - KIX

2 stops22h 40mMultiple Airlines

Deal found 12/29

$1,420

Last-minute flights from Kansai Intl to Dulles Intl
Discover last-minute flight deals from Kansai Intl to Dulles Intl. Data last updated December 29, 2025 and is based on user searches.

Fri 1/99:00 amKIX - IAD

1 stop23h 30mAir China

Tue 5/1211:00 pmIAD - KIX

1 stop24h 40mAir China

Deal found 12/27

$1,434

Fri 1/97:00 amKIX - IAD

2 stops47h 26mMultiple Airlines

Tue 5/127:10 amIAD - KIX

2 stops36h 15mMultiple Airlines

Deal found 12/27

$1,640

Fri 1/96:35 pmKIX - IAD

2 stops30h 41mUnited Airlines

Tue 5/122:36 pmIAD - KIX

1 stop35h 14mUnited Airlines

Deal found 12/27

$1,664

Fri 1/910:30 amKIX - IAD

3 stops59h 30mEthiopian Air

Tue 5/1210:55 amIAD - KIX

2 stops45h 00mEthiopian Air

Deal found 12/27

$4,879

Sun 1/116:35 pmKIX - IAD

1 stop20h 24mUnited Airlines

Wed 1/1412:42 pmIAD - KIX

2 stops37h 58mUnited Airlines

Deal found 12/28

$1,616

Sun 1/111:00 pmKIX - IAD

2 stops44h 09mMultiple Airlines

Wed 1/1412:23 pmIAD - KIX

2 stops32h 27mMultiple Airlines

Deal found 12/28

$1,752

Sun 1/1110:30 amKIX - IAD

3 stops59h 30mEthiopian Air

Wed 1/148:50 pmIAD - KIX

3 stops34h 05mEthiopian Air

Deal found 12/28

$3,764

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 29, 2025.

Thu 5/2812:00 pmKIX - IAD

3 stops35h 16mMultiple Airlines

Deal found 12/26

$540

Wed 3/1812:55 pmKIX - IAD

2 stops29h 45mMultiple Airlines

Deal found 12/27

$618

Wed 5/273:10 pmKIX - IAD

2 stops29h 24mSTARLUX Airlines

Deal found 12/26

$646

Wed 5/136:30 pmKIX - IAD

2 stops26h 04mMultiple Airlines

Deal found 12/28

$657

Fri 4/107:55 pmKIX - IAD

3 stops51h 29mMultiple Airlines

Deal found 12/26

$660

Wed 5/2710:25 pmKIX - IAD

3 stops46h 09mMultiple Airlines

Deal found 12/26

$676

Fri 5/297:55 pmKIX - IAD

3 stops48h 39mMultiple Airlines

Deal found 12/26

$696

Thu 5/282:00 pmKIX - IAD

1 stop42h 30mAir China

Deal found 12/26

$858

Find flight deals from Kansai Intl to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,082 (Trip.com)
One-way from	$540 (Kiwi.com)

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

Thu 4/16

6:30 pm-5:40 am

2 stops24h 10m

Washington, D.C. Dulles Intl

Wed 4/29

7:20 pm-10:10 am

2 stops25h 50m

$1,082

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 2/11

7:50 am-8:54 pm

3 stops27h 04m

Washington, D.C. Dulles Intl

Wed 2/18

11:10 am-9:50 pm

1 stop20h 40m

$1,129

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Tue 2/10

11:05 am-8:29 pm

2 stops23h 24m

Washington, D.C. Dulles Intl

Tue 2/17

11:50 am-8:45 pm

1 stop18h 55m

$1,293

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sun 4/12

11:10 am-5:40 am

2 stops31h 30m

Washington, D.C. Dulles Intl

Sun 4/19

7:00 am-12:10 pm

2 stops40h 10m

$1,317

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 2/12

7:50 am-8:54 pm

2 stops27h 04m

Washington, D.C. Dulles Intl

Thu 2/19

9:00 am-9:40 pm

2 stops22h 40m

$1,420

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 2/11

12:45 pm-4:35 pm

1 stop41h 50m

Washington, D.C. Dulles Intl

Wed 2/18

6:50 pm-10:50 am

1 stop26h 00m

$1,455

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 5/28

12:00 pm-10:16 am

3 stops35h 16m

$540

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 3/18

12:55 pm-5:40 am

2 stops29h 45m

$618

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 5/27

3:10 pm-7:34 am

2 stops29h 24m

$646

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 5/13

1:10 pm-7:34 am

2 stops31h 24m

$657

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 13 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

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.

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$540+ 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 5/28. 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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Cheap flight deals from Kansai Intl to Dulles Intl

Best flights from Kansai Intl to Dulles IntlDiscover 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 29, 2025.

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 29, 2025.

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.

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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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 29, 2025.