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Cheap flights from Washington, D.C. to Osaka from $394

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 2/28. 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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Find the cheapest flights from Washington, D.C. to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:05 am - 8:45 pmBWI-KIX
24h 40m2 stops
Delta Logo
9:00 am - 11:26 pmKIX-BWI
28h 26m2 stops
$852Delta
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Wed, Jan 14 - Wed, Jan 21
Delta Logo
6:05 am - 8:45 pmBWI-KIX
24h 40m2 stops
Delta Logo
9:00 am - 11:26 pmKIX-BWI
28h 26m2 stops
$972Delta
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Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
6:34 pm - 7:25 pmBWI-KIX
34h 51m2 stops
United Airlines Logo
6:35 pm - 7:27 amKIX-BWI
26h 52m1 stop
$974United Airlines
Find Deal
Mon, Feb 2 - Sat, Feb 14
United Airlines Logo
6:30 am - 7:25 pmBWI-KIX
22h 55m2 stops
United Airlines Logo
6:35 pm - 11:25 pmKIX-BWI
18h 50m2 stops
$979United Airlines
Find Deal
Mon, Feb 2 - Sat, Feb 14
ANA Logo
10:05 am - 9:50 pmBWI-KIX
21h 45m2 stops
ANA Logo
7:05 am - 9:21 pmKIX-BWI
28h 16m2 stops
$983ANA
Find Deal
Mon, Jan 26 - Mon, Feb 9
ANA Logo
10:05 am - 9:50 pmBWI-KIX
21h 45m2 stops
ANA Logo
6:45 am - 9:21 pmKIX-BWI
28h 36m2 stops
$990ANA
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Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
6:00 pm - 6:50 pmDCA-KIX
34h 50m2 stops
Multiple Airlines Logo
5:50 pm - 4:59 pmKIX-DCA
37h 09m2 stops
$1,010Multiple Airlines
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Fri, Jan 23 - Wed, Jan 28
Multiple Airlines Logo
6:00 am - 8:35 pmDCA-KIX
24h 35m2 stops
Multiple Airlines Logo
3:45 pm - 10:35 pmKIX-DCA
20h 50m2 stops
$1,039Multiple Airlines
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Wed, Jan 14 - Wed, Jan 21
Air Canada Logo
6:59 am - 5:40 pmDCA-KIX
20h 41m2 stops
Air Canada Logo
7:25 pm - 3:33 pmKIX-DCA
33h 08m2 stops
$1,046Air Canada
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Mon, Mar 2 - Mon, Mar 9
Air Canada Logo
9:00 am - 7:25 pmIAD-KIX
20h 25m2 stops
Air Canada Logo
3:45 pm - 8:29 pmKIX-IAD
18h 44m2 stops
$1,046Air Canada
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Mon, Feb 16 - Thu, Feb 26

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
Feb 2
BWI6:34 pmBaltimore/Washington
34h 51m
2 stops
KIX7:25 pmOsaka Kansai Intl
Feb 14
KIX6:35 pmOsaka Kansai Intl
26h 52m
1 stop
BWI7:27 amBaltimore/Washington
$974
Find similar
United Airlines
Feb 2
BWI6:30 amBaltimore/Washington
22h 55m
2 stops
KIX7:25 pmOsaka Kansai Intl
Feb 14
KIX6:35 pmOsaka Kansai Intl
18h 50m
2 stops
BWI11:25 pmBaltimore/Washington
$979
Find similar
United Airlines
Feb 27
BWI6:00 amBaltimore/Washington
23h 25m
2 stops
KIX7:25 pmOsaka Kansai Intl
Mar 9
KIX6:35 pmOsaka Kansai Intl
25h 44m
1 stop
BWI7:19 amBaltimore/Washington
$988
Find similar

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

Our best Air China deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
Air China
Mar 3
IAD10:00 pmWashington, D.C. Dulles Intl
32h 10m
1 stop
KIX8:10 pmOsaka Kansai Intl
Mar 10
KIX9:00 amOsaka Kansai Intl
23h 30m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$1,031
Find similar
Air China
Jan 30
IAD10:00 pmWashington, D.C. Dulles Intl
24h 40m
1 stop
KIX12:40 pmOsaka Kansai Intl
Feb 13
KIX9:00 amOsaka Kansai Intl
23h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,037
Find similar
Air China
Jan 16
IAD10:00 pmWashington, D.C. Dulles Intl
32h 10m
1 stop
KIX8:10 pmOsaka Kansai Intl
Jan 23
KIX9:00 amOsaka Kansai Intl
23h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,048
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 2, 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

Wed 1/14

6:05 am-8:45 pm

2 stops24h 40m

Osaka Kansai Intl

Wed 1/21

9:00 am-11:26 pm

2 stops28h 26m

$852

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Wed 1/14

6:05 am-8:45 pm

2 stops24h 40m

Osaka Kansai Intl

Wed 1/21

9:00 am-11:26 pm

2 stops28h 26m

$972

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 2/2

6:34 pm-7:25 pm

2 stops34h 51m

Osaka Kansai Intl

Sat 2/14

6:35 pm-7:27 am

1 stop26h 52m

$974

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 2/2

6:30 am-7:25 pm

2 stops22h 55m

Osaka Kansai Intl

Sat 2/14

6:35 pm-11:25 pm

2 stops18h 50m

$979

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 1/26

10:05 am-9:50 pm

2 stops21h 45m

Osaka Kansai Intl

Mon 2/9

7:05 am-9:21 pm

2 stops28h 16m

$983

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Fri 1/16

10:05 am-9:50 pm

2 stops21h 45m

Osaka Kansai Intl

Fri 1/23

6:45 am-9:21 pm

2 stops28h 36m

$990

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Fri 1/23

6:00 pm-6:50 pm

2 stops34h 50m

Osaka Kansai Intl

Wed 1/28

5:50 pm-4:59 pm

2 stops37h 09m

$1,010

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 1/14

6:00 am-8:35 pm

2 stops24h 35m

Osaka Kansai Intl

Wed 1/21

3:45 pm-10:35 pm

2 stops20h 50m

$1,039

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Mon 3/2

6:59 am-5:40 pm

2 stops20h 41m

Osaka Kansai Intl

Mon 3/9

7:25 pm-3:33 pm

2 stops33h 08m

$1,046

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 2/16

9:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Thu 2/26

3:45 pm-8:29 pm

2 stops18h 44m

$1,046

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Osaka from

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 typical price of a round-trip flight between Washington, D.C. and Osaka Kansai Intl Airport?

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

Fastest flight time

19h 20m

Direct flights

None
The fastest flight from Washington, D.C. to Osaka Kansai Intl Airport takes 19h 20m
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 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
9,065 reviews
Search United Airlines flights
ANAPriceFrom $1,134Free CancellationRating
8.4
1,016 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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