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Cheap flights from Washington, D.C. to Osaka from $375

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 12/6. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:34 pm - 4:40 pmBWI-KIX
32h 06m1 stop
United Airlines Logo
6:35 pm - 5:26 pmKIX-BWI
36h 51m1 stop
$832United Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 23
ANA Logo
10:05 am - 10:20 pmBWI-KIX
22h 15m2 stops
ANA Logo
11:05 am - 9:41 pmKIX-BWI
24h 36m2 stops
$838ANA
Find Deal
Tue, Jan 13 - Thu, Jan 29
United Airlines Logo
8:00 am - 7:25 pmBWI-KIX
45h 25m2 stops
United Airlines Logo
6:35 pm - 7:27 amKIX-BWI
26h 52m1 stop
$846United Airlines
Find Deal
Wed, Jan 28 - Fri, Feb 13
United Airlines Logo
8:00 am - 7:25 pmBWI-KIX
45h 25m2 stops
United Airlines Logo
8:20 am - 10:25 pmKIX-BWI
28h 05m3 stops
$848United Airlines
Find Deal
Tue, Jan 13 - Thu, Jan 29
United Airlines Logo
8:42 am - 4:40 pmBWI-KIX
41h 58m1 stop
United Airlines Logo
8:20 am - 9:21 pmKIX-BWI
27h 01m2 stops
$852United Airlines
Find Deal
Tue, Jan 13 - Thu, Jan 29
United Airlines Logo
6:08 pm - 4:40 pmBWI-KIX
32h 32m2 stops
United Airlines Logo
6:35 pm - 11:30 amKIX-BWI
29h 55m2 stops
$901United Airlines
Find Deal
Sun, Feb 22 - Tue, Mar 10
United Airlines Logo
5:14 pm - 4:40 pmBWI-KIX
33h 26m2 stops
United Airlines Logo
8:20 am - 9:42 pmKIX-BWI
26h 22m2 stops
$903United Airlines
Find Deal
Sat, Feb 21 - Thu, Mar 12
Multiple Airlines Logo
9:00 am - 10:20 pmIAD-KIX
23h 20m2 stops
Multiple Airlines Logo
3:00 pm - 8:26 pmKIX-IAD
19h 26m2 stops
$927Multiple Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
Air Canada Logo
8:40 pm - 7:25 pmDCA-KIX
32h 45m2 stops
Air Canada Logo
7:25 pm - 10:23 amKIX-DCA
27h 58m2 stops
$1,059Air Canada
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Sun, Feb 22 - Tue, Mar 10
Air Canada Logo
9:40 am - 7:25 pmDCA-KIX
19h 45m2 stops
Air Canada Logo
3:45 pm - 6:05 pmKIX-DCA
40h 20m2 stops
$1,067Air Canada
Find Deal
Mon, Feb 2 - Wed, Feb 18

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

Our best United Airlines deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
United Airlines
Jan 10
BWI6:34 pmBaltimore/Washington
32h 06m
1 stop
KIX4:40 pmOsaka Kansai Intl
Jan 23
KIX6:35 pmOsaka Kansai Intl
36h 51m
1 stop
BWI5:26 pmBaltimore/Washington
$832
Find similar
United Airlines
Jan 28
BWI8:00 amBaltimore/Washington
45h 25m
2 stops
KIX7:25 pmOsaka Kansai Intl
Feb 13
KIX6:35 pmOsaka Kansai Intl
26h 52m
1 stop
BWI7:27 amBaltimore/Washington
$846
Find similar
United Airlines
Jan 13
BWI8:00 amBaltimore/Washington
45h 25m
2 stops
KIX7:25 pmOsaka Kansai Intl
Jan 29
KIX8:20 amOsaka Kansai Intl
28h 05m
3 stops
BWI10:25 pmBaltimore/Washington
$848
Find similar

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
Jan 13
BWI10:05 amBaltimore/Washington
22h 15m
2 stops
KIX10:20 pmOsaka Kansai Intl
Jan 29
KIX11:05 amOsaka Kansai Intl
24h 36m
2 stops
BWI9:41 pmBaltimore/Washington
$838
Find similar
ANA
Jan 10
BWI10:05 amBaltimore/Washington
21h 45m
2 stops
KIX9:50 pmOsaka Kansai Intl
Jan 23
KIX2:05 pmOsaka Kansai Intl
21h 36m
2 stops
BWI9:41 pmBaltimore/Washington
$951
Find similar
ANA
Dec 2
BWI1:10 pmBaltimore/Washington
29h 25m
2 stops
KIX8:35 amOsaka Kansai Intl
Dec 19
KIX7:05 amOsaka Kansai Intl
23h 53m
2 stops
BWI4:58 pmBaltimore/Washington
$997
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 November 18, 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

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Sat 1/10

6:34 pm-4:40 pm

1 stop32h 06m

Osaka Kansai Intl

Fri 1/23

6:35 pm-5:26 pm

1 stop36h 51m

$832

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 1/13

10:05 am-10:20 pm

2 stops22h 15m

Osaka Kansai Intl

Thu 1/29

11:05 am-9:41 pm

2 stops24h 36m

$838

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Wed 1/28

8:00 am-7:25 pm

2 stops45h 25m

Osaka Kansai Intl

Fri 2/13

6:35 pm-7:27 am

1 stop26h 52m

$846

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 1/13

8:00 am-7:25 pm

2 stops45h 25m

Osaka Kansai Intl

Thu 1/29

8:20 am-10:25 pm

3 stops28h 05m

$848

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 1/13

8:42 am-4:40 pm

1 stop41h 58m

Osaka Kansai Intl

Thu 1/29

8:20 am-9:21 pm

2 stops27h 01m

$852

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Sun 2/22

6:08 pm-4:40 pm

2 stops32h 32m

Osaka Kansai Intl

Tue 3/10

6:35 pm-11:30 am

2 stops29h 55m

$901

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Sat 2/21

5:14 pm-4:40 pm

2 stops33h 26m

Osaka Kansai Intl

Thu 3/12

8:20 am-9:42 pm

2 stops26h 22m

$903

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 12/1

9:00 am-10:20 pm

2 stops23h 20m

Osaka Kansai Intl

Thu 12/11

3:00 pm-8:26 pm

2 stops19h 26m

$927

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Sun 2/22

8:40 pm-7:25 pm

2 stops32h 45m

Osaka Kansai Intl

Tue 3/10

7:25 pm-10:23 am

2 stops27h 58m

$1,059

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Mon 2/2

9:40 am-7:25 pm

2 stops19h 45m

Osaka Kansai Intl

Wed 2/18

3:45 pm-6:05 pm

2 stops40h 20m

$1,067

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest day to depart on your flight to Osaka Kansai Intl Airport?

The cheapest day to depart from Washington, D.C. to Osaka Kansai Intl Airport is on a Tuesday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Tuesday will often find tickets for as low as $1,363. Flights from Washington, D.C. to Osaka Kansai Intl Airport on a Saturday will generally be more expensive and average around $1,655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Osaka Kansai Intl Airport?

Our data shows that the cheapest Washington, D.C. to Osaka Kansai Intl Airport flights are usually those with departure times at noon. Our users have found flights to Osaka Kansai Intl Airport at noon for as low as $990. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,515 on average. Flights to Osaka Kansai Intl Airport from Washington, D.C. in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 29% 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

Direct flights

None
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.
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  • 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 18h 15m.

  • 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
9,016 reviews
Search United Airlines flights
ANAPriceFrom $1,134Free CancellationRating
8.4
1,007 reviews
Search ANA flights

Traveling to a place near Osaka?

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

I’m not ready to book a flight from Washington, D.C. to Osaka right now. Can momondo alert me if prices change?

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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