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

If weather is an important factor for your trip to Washington, D.C., 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 routes from Osaka Kansai Intl Airport to Washington, D.C.?

Most travelers choose Osaka Kansai Intl - Washington, D.C. Dulles Intl, Osaka Kansai Intl - Washington, D.C. Reagan-National or Osaka Kansai Intl - Baltimore/Washington when deciding on the best route from Osaka Kansai Intl Airport to Washington, D.C..

What is the cheapest time of day to fly from KIX to WAS?

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

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

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

How can I find direct flights from Kansai Intl to Washington, D.C.?

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

Can I find deals for business class flights from Kansai Intl to Washington, D.C.?

Yes. Cheapflights offers flight deals from Kansai Intl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$409+ Flights from Osaka Kansai Intl Airport to Washington, D.C.

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Cheap flight deals from Kansai Intl to Washington, D.C.

Cheapest flights from Kansai Intl to Washington, D.C.
Explore the most affordable flight options available from Kansai Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 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

Thu 8/207:05 pm

KIX

DCA

2 stops35h 54m

Multiple Airlines

Mon 8/315:04 pm

DCA

KIX

2 stops29h 56m

Multiple Airlines

Deal found 1/27

$1,171

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

Sat 5/21:35 pm

KIX

DCA

2 stops21h 53m

Multiple Airlines

Fri 5/84:20 pm

DCA

KIX

2 stops59h 05m

Multiple Airlines

Deal found 1/27

$1,200

Thu 4/97:05 pm

KIX

IAD

2 stops23h 35m

Multiple Airlines

Tue 4/217:11 pm

IAD

KIX

2 stops27h 49m

Multiple Airlines

Deal found 1/26

$1,225

Wed 8/191:10 pm

KIX

IAD

2 stops31h 18m

Multiple Airlines

Sun 8/309:00 am

IAD

KIX

2 stops36h 10m

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 8/71:25 pm

KIX

IAD

2 stops31h 07m

STARLUX Airlines

Fri 8/217:18 pm

IAD

KIX

2 stops29h 42m

STARLUX Airlines

Deal found 1/25

$1,246

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

Wed 3/1112:55 pm

KIX

IAD

2 stops41h 25m

Multiple Airlines

Wed 3/187:11 pm

IAD

KIX

2 stops25h 44m

Multiple Airlines

Deal found 1/25

$1,258

Wed 3/1112:55 pm

KIX

BWI

2 stops41h 51m

Multiple Airlines

Wed 3/187:05 pm

BWI

KIX

2 stops25h 50m

Multiple Airlines

Deal found 1/25

$1,258

Wed 8/191:10 pm

KIX

DCA

2 stops39h 58m

Multiple Airlines

Sun 8/308:00 am

DCA

KIX

2 stops37h 10m

Multiple Airlines

Deal found 1/27

$1,339

Best flights from Kansai Intl to Washington, D.C.
Discover carefully curated flight deals from Kansai Intl to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 27, 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

Sat 5/26:00 pm

KIX

IAD

2 stops26h 50m

Air Canada

Fri 5/810:08 pm

IAD

KIX

2 stops53h 17m

Air Canada

Deal found 1/25

$1,541

Wed 3/119:25 am

KIX

DCA

2 stops44h 12m

Cathay Pacific

Wed 3/1811:57 am

DCA

KIX

3 stops37h 58m

Cathay Pacific

Deal found 1/25

$1,713

Wed 3/116:35 pm

KIX

DCA

2 stops28h 19m

United Airlines

Wed 3/187:00 am

DCA

KIX

1 stop20h 40m

United Airlines

Deal found 1/25

$1,795

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

Sat 5/21:35 pm

KIX

DCA

2 stops21h 53m

Multiple Airlines

Fri 5/84:20 pm

DCA

KIX

2 stops59h 05m

Multiple Airlines

Deal found 1/27

$1,200

Wed 3/1112:55 pm

KIX

IAD

2 stops41h 25m

Multiple Airlines

Wed 3/187:11 pm

IAD

KIX

2 stops25h 44m

Multiple Airlines

Deal found 1/25

$1,258

Fri 3/133:45 pm

KIX

DCA

2 stops30h 10m

Air Canada

Fri 3/204:10 pm

DCA

KIX

2 stops60h 30m

Air Canada

Deal found 1/26

$1,656

Wed 3/1112:55 pm

KIX

BWI

2 stops41h 51m

Multiple Airlines

Wed 3/187:05 pm

BWI

KIX

2 stops25h 50m

Multiple Airlines

Deal found 1/25

$1,258

Sat 5/24:55 pm

KIX

BWI

2 stops30h 09m

United Airlines

Fri 5/86:25 pm

BWI

KIX

1 stop31h 25m

United Airlines

Deal found 1/26

$1,862

Sat 5/24:20 pm

KIX

DCA

3 stops45h 10m

Cathay Pacific

Fri 5/811:36 am

DCA

KIX

2 stops41h 29m

Cathay Pacific

Deal found 1/26

$1,875

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

Sat 5/27:45 am

KIX

BWI

3 stops40h 17m

Multiple Airlines

Fri 5/85:45 am

BWI

KIX

2 stops27h 15m

Multiple Airlines

Deal found 1/25

$1,385

Wed 3/1112:55 pm

KIX

DCA

2 stops40h 11m

Multiple Airlines

Wed 3/185:00 pm

DCA

KIX

2 stops27h 55m

Multiple Airlines

Deal found 1/25

$1,428

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 1/26

$1,526

Fri 3/133:00 pm

KIX

DCA

3 stops32h 21m

Multiple Airlines

Fri 3/206:59 am

DCA

KIX

2 stops24h 46m

Multiple Airlines

Deal found 1/26

$1,799

Last-minute flights from Kansai Intl to Washington, D.C.
Discover last-minute flight deals from Kansai Intl to Washington, D.C.. Data last updated January 27, 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 1/24

$1,808

Thu 1/295:50 pm

KIX

DCA

2 stops19h 10m

American Airlines

Mon 2/29:13 pm

DCA

KIX

2 stops55h 37m

American Airlines

Deal found 1/24

$1,808

Thu 1/2910:30 pm

KIX

IAD

1 stop27h 15m

Turkish Airlines

Mon 2/29:15 pm

IAD

KIX

1 stop31h 50m

Turkish Airlines

Deal found 1/24

$1,880

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 1/24

$2,453

One-way flights from Kansai Intl to Washington, D.C.
Search for one-way flight options from Kansai Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated January 27, 2026.

Wed 2/258:25 pm

KIX

BWI

2 stops52h 02m

Multiple Airlines

Deal found 1/25

$409

Mon 2/98:25 pm

KIX

BWI

2 stops52h 02m

Multiple Airlines

Deal found 1/25

$443

Wed 2/258:25 pm

KIX

IAD

3 stops57h 59m

Multiple Airlines

Deal found 1/25

$447

Wed 2/258:00 am

KIX

DCA

3 stops43h 15m

Multiple Airlines

Deal found 1/25

$455

Mon 2/238:25 pm

KIX

BWI

2 stops52h 02m

Multiple Airlines

Deal found 1/25

$459

Mon 2/238:25 pm

KIX

DCA

3 stops54h 50m

Multiple Airlines

Deal found 1/25

$493

Fri 4/177:40 am

KIX

IAD

3 stops53h 56m

Multiple Airlines

Deal found 1/25

$527

Tue 2/178:25 pm

KIX

IAD

3 stops52h 08m

Multiple Airlines

Deal found 1/26

$535

Thu 4/307:50 pm

KIX

BWI

2 stops51h 07m

Multiple Airlines

Deal found 1/27

$545

Thu 4/237:40 am

KIX

BWI

3 stops47h 36m

Multiple Airlines

Deal found 1/25

$554

Mon 4/139:55 am

KIX

BWI

3 stops46h 03m

Multiple Airlines

Deal found 1/26

$556

Fri 4/177:40 am

KIX

BWI

3 stops46h 19m

Multiple Airlines

Deal found 1/25

$559

Find flight deals from Kansai Intl to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,166 (Trip.com)
One-way from	$409 (Kiwi.com)

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

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From Osaka Kansai Intl to Washington, D.C. (WAS)

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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. 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 - DCA

KIXDCA

Osaka Kansai Intl

Sat 5/2

1:35 pm-10:28 pm

2 stops21h 53m

Washington, D.C. Reagan-National

Fri 5/8

4:20 pm-4:25 pm

2 stops59h 05m

$1,200

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 3/11

12:55 pm-5:20 pm

2 stops41h 25m

Washington, D.C. Dulles Intl

Wed 3/18

7:11 pm-9:55 am

2 stops25h 44m

$1,258

OsakaBaltimore

KIX - BWI

KIXBWI

Osaka Kansai Intl

Wed 3/11

12:55 pm-5:46 pm

2 stops41h 51m

Baltimore/Washington

Wed 3/18

7:05 pm-9:55 am

2 stops25h 50m

$1,258

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

OsakaBaltimore

KIX - BWI

KIXBWI

Osaka Kansai Intl

Sat 5/2

7:45 am-11:02 am

3 stops40h 17m

Baltimore/Washington

Fri 5/8

5:45 am-10:00 pm

2 stops27h 15m

$1,385

OsakaWashington, D.C.

KIX - DCA

KIXDCA

Osaka Kansai Intl

Wed 3/11

12:55 pm-4:06 pm

2 stops40h 11m

Washington, D.C. Reagan-National

Wed 3/18

5:00 pm-9:55 am

2 stops27h 55m

$1,428

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

$1,526

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 43 results

...

Most accurate provider: When it comes to deals on Osaka Kansai Intl Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka Kansai Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka Kansai Intl Airport-Washington, D.C. 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. flights, Cheapflights users trust FlightHub the most. FlightHub 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. 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Osaka Kansai Intl Airport to Washington, D.C.

No data available for this route at this time. Please check back soon.

Related info for your journey

What are the most popular routes from Osaka Kansai Intl Airport to Washington, D.C.?
Most travelers choose Osaka Kansai Intl - Washington, D.C. Dulles Intl, Osaka Kansai Intl - Washington, D.C. Reagan-National or Osaka Kansai Intl - Baltimore/Washington when deciding on the best route from Osaka Kansai Intl Airport to Washington, D.C..
Can I find deals for flights from Kansai Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Kansai Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kansai Intl to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansai Intl to Washington, D.C..
Can I find deals for business class flights from Kansai Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Kansai Intl to Washington, D.C. 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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$409+ Cheap flights from Kansai Intl (KIX) to Washington, D.C. (WAS)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kansai Intl to Washington, D.C. with Cheapflights

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Cheap flight deals from Kansai Intl to Washington, D.C.

Cheapest flights from Kansai Intl to Washington, D.C.Explore the most affordable flight options available from Kansai Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Explore the most affordable flight options available from Kansai Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

Find flight deals from Kansai Intl to Washington, D.C.

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

Best time to book a flight from Kansai Intl to Washington, D.C.

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

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Everything you need to know about your flight from Osaka Kansai Intl Airport to Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Kansai Intl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the most popular routes from Osaka Kansai Intl Airport to Washington, D.C.?

Can I find deals for flights from Kansai Intl to Washington, D.C. that include hotel bookings?

How can I find direct flights from Kansai Intl to Washington, D.C.?

Can I find deals for business class flights from Kansai Intl to Washington, D.C.?

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Cheapest flights from Kansai Intl to Washington, D.C.
Explore the most affordable flight options available from Kansai Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.