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Cheap flights from Washington, D.C. to Osaka from $505

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Osaka departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:45 am - 8:35 pm
IAD
-
KIX
20h 50m2 stops
Multiple Airlines Logo
10:40 am - 8:54 pm
KIX
-
IAD
24h 14m2 stops
$876Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
9:45 am - 8:35 pm
IAD
-
KIX
20h 50m2 stops
Multiple Airlines Logo
3:45 pm - 9:25 pm
KIX
-
IAD
19h 40m2 stops
$904Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
9:00 am - 10:20 pm
IAD
-
KIX
23h 20m2 stops
Multiple Airlines Logo
8:00 am - 8:54 pm
KIX
-
IAD
26h 54m2 stops
$905Multiple Airlines
Mon, Feb 16 - Thu, Feb 26
ANA Logo
6:30 am - 10:20 pm
BWI
-
KIX
25h 50m2 stops
ANA Logo
6:45 am - 9:17 pm
KIX
-
BWI
28h 32m2 stops
$927ANA
Fri, Feb 13 - Fri, Feb 20
United Airlines Logo
12:25 pm - 4:40 pm
BWI
-
KIX
38h 15m2 stops
United Airlines Logo
6:35 pm - 7:32 am
KIX
-
BWI
26h 57m1 stop
$943United Airlines
Wed, Jan 14 - Thu, Jan 22
ANA Logo
12:15 pm - 7:30 pm
IAD
-
KIX
18h 15m1 stop
ANA Logo
7:00 am - 10:05 am
KIX
-
IAD
16h 05m1 stop
$950ANA
Sun, Apr 19 - Fri, May 8
United Airlines Logo
6:34 pm - 4:40 pm
BWI
-
KIX
32h 06m1 stop
United Airlines Logo
6:35 pm - 7:32 am
KIX
-
BWI
26h 57m1 stop
$951United Airlines
Wed, Jan 14 - Thu, Jan 22
Air Canada Logo
6:00 am - 5:40 pm
DCA
-
KIX
21h 40m2 stops
Air Canada Logo
7:25 pm - 9:23 am
KIX
-
DCA
27h 58m2 stops
$977Air Canada
Sun, Mar 1 - Sat, Mar 7
Japan Airlines Logo
3:21 pm - 2:10 pm
DCA
-
KIX
32h 49m2 stops
Japan Airlines Logo
7:00 am - 2:41 pm
KIX
-
DCA
20h 41m2 stops
$985Japan Airlines
Wed, Mar 4 - Wed, Mar 18
Air Canada Logo
12:55 pm - 5:40 pm
DCA
-
KIX
39h 45m2 stops
Air Canada Logo
8:30 am - 10:19 am
KIX
-
DCA
38h 49m2 stops
$1,005Air Canada
Tue, Mar 24 - Thu, Apr 9

ANA flights from Washington, D.C. to Osaka Kansai Intl Airport

Our best ANA deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
ANA
Feb 13
BWI6:30 amBaltimore/Washington
25h 50m
2 stops
KIX10:20 pmOsaka Kansai Intl
Feb 20
KIX6:45 amOsaka Kansai Intl
28h 32m
2 stops
BWI9:17 pmBaltimore/Washington
$927
Find similar
ANA
Jan 26
IAD11:10 amWashington, D.C. Dulles Intl
18h 15m
1 stop
KIX7:25 pmOsaka Kansai Intl
Jun 2
KIX6:45 amOsaka Kansai Intl
16h 20m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
$950
Find similar
ANA
Feb 16
IAD11:10 amWashington, D.C. Dulles Intl
18h 15m
1 stop
KIX7:25 pmOsaka Kansai Intl
Feb 26
KIX7:05 amOsaka Kansai Intl
22h 35m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$956
Find similar

China Airlines flights from Washington, D.C. to Osaka Kansai Intl Airport

Our best China Airlines deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
China Airlines
May 12
BWI7:04 amBaltimore/Washington
39h 56m
2 stops
KIX12:00 pmOsaka Kansai Intl
Jul 14
KIX7:05 pmOsaka Kansai Intl
24h 20m
2 stops
BWI6:25 amBaltimore/Washington
$1,300
Find similar
China Airlines
May 12
BWI7:04 amBaltimore/Washington
39h 56m
2 stops
KIX12:00 pmOsaka Kansai Intl
Jul 14
KIX2:00 pmOsaka Kansai Intl
29h 25m
2 stops
BWI6:25 amBaltimore/Washington
$1,301
Find similar
China Airlines
Mar 19
BWI7:04 pmBaltimore/Washington
29h 16m
2 stops
KIX1:20 pmOsaka Kansai Intl
Apr 2
KIX7:05 pmOsaka Kansai Intl
35h 59m
2 stops
BWI6:04 pmBaltimore/Washington
$1,339
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Osaka Kansai Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 31, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Osaka Kansai Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 1/27

9:45 am-8:35 pm

2 stops20h 50m

Osaka Kansai Intl

Tue 2/3

10:40 am-8:54 pm

2 stops24h 14m

$876

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-8:35 pm

2 stops20h 50m

Osaka Kansai Intl

Wed 2/4

3:45 pm-9:25 pm

2 stops19h 40m

$904

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 2/16

9:00 am-10:20 pm

2 stops23h 20m

Osaka Kansai Intl

Thu 2/26

8:00 am-8:54 pm

2 stops26h 54m

$905

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Fri 2/13

6:30 am-10:20 pm

2 stops25h 50m

Osaka Kansai Intl

Fri 2/20

6:45 am-9:17 pm

2 stops28h 32m

$927

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Wed 1/14

12:25 pm-4:40 pm

2 stops38h 15m

Osaka Kansai Intl

Thu 1/22

6:35 pm-7:32 am

1 stop26h 57m

$943

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 4/19

12:15 pm-7:30 pm

1 stop18h 15m

Osaka Kansai Intl

Fri 5/8

7:00 am-10:05 am

1 stop16h 05m

$950

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Wed 1/14

6:34 pm-4:40 pm

1 stop32h 06m

Osaka Kansai Intl

Thu 1/22

6:35 pm-7:32 am

1 stop26h 57m

$951

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Sun 3/1

6:00 am-5:40 pm

2 stops21h 40m

Osaka Kansai Intl

Sat 3/7

7:25 pm-9:23 am

2 stops27h 58m

$977

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 3/4

3:21 pm-2:10 pm

2 stops32h 49m

Osaka Kansai Intl

Wed 3/18

7:00 am-2:41 pm

2 stops20h 41m

$985

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 3/24

12:55 pm-5:40 pm

2 stops39h 45m

Osaka Kansai Intl

Thu 4/9

8:30 am-10:19 am

2 stops38h 49m

$1,005

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How to get the cheapest flight ticket from Washington, D.C. to Osaka Kansai Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Washington, D.C. to Osaka Kansai Intl Airport flights?

You could potentially save up to 36% on your flight if you consider stops on a Washington, D.C. to Osaka Kansai Intl Airport flight.

When to book flights from Washington, D.C. to Osaka Kansai Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Osaka Kansai Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Osaka Kansai Intl Airport (WAS to KIX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Osaka Kansai Intl Airport

Fastest flight time

17h 40m

Direct flights

None
The fastest flight from Washington, D.C. to Osaka Kansai Intl Airport takes 17h 40m
There are no direct flights from Washington, D.C. to Osaka Kansai Intl Airport. There are no popular flight routes from Washington, D.C. to Osaka Kansai Intl Airport.
Search flight deals

  • How far is Washington, D.C. to Osaka Kansai Intl by plane?

    The distance between Washington, D.C. and Osaka Kansai Intl is about 6960.7 mi. By plane, this route typically takes 17h 40m.

  • When did momondo last update prices for flights from Washington, D.C. to Osaka Kansai Intl Airport?

    Prices for flights from Washington, D.C. to Osaka Kansai Intl Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to Osaka Kansai Intl Airport?

  • How old do you have to be to fly from Washington, D.C. to Osaka Kansai Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Osaka Kansai Intl Airport.

  • What documentation or ID do you need to fly to Osaka Kansai Intl Airport?

    The required travel and health documents for your Osaka Kansai Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Osaka Kansai Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Washington, D.C. to Osaka Kansai Intl Airport?

Best airlines flying from Washington, D.C. to Osaka Kansai Intl Airport

Compare and see reviews for airlines that fly from Washington, D.C. to Osaka Kansai Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $157Free CancellationRating
7.4
9,129 reviews
Search United Airlines flights
ANAPriceFrom $1,092Free CancellationRating
8.4
1,052 reviews
Search ANA flights

Traveling to a place near Osaka?

Book flights to Osaka if you plan to visit one of these locations
Nara
Izumisano
Himeji
Nishinomiya

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Osaka?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Osaka. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Osaka with flexible booking policies on momondo?

Flights from Washington, D.C. to Osaka with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Osaka?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Osaka.

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Yes. momondo can track prices for Washington, D.C. to Osaka flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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