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Cheap flights from Washington, D.C. to Osaka from $472

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 4/18. 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.
EVA Air Logo
1:15 am - 5:15 pm
IAD
-
KIX
27h 00m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$929EVA Air
Mon, Sep 7 - Sun, Sep 13
EVA Air Logo
1:15 am - 12:10 pm
IAD
-
KIX
21h 55m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$932EVA Air
Mon, Sep 28 - Sun, Oct 4
EVA Air Logo
1:15 am - 12:10 pm
IAD
-
KIX
21h 55m
1 stop
EVA Air Logo
1:10 pm - 10:00 pm
KIX
-
IAD
21h 50m
1 stop
$936EVA Air
Wed, Sep 9 - Wed, Sep 16
EVA Air Logo
1:15 am - 12:10 pm
IAD
-
KIX
21h 55m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$965EVA Air
Wed, Sep 9 - Sun, Sep 13
EVA Air Logo
1:15 am - 5:15 pm
IAD
-
KIX
27h 00m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$967EVA Air
Fri, Sep 25 - Sun, Oct 4
Air Canada Logo
10:07 pm - 4:25 pm
IAD
-
KIX
29h 18m
2 stops
Air Canada Logo
6:00 pm - 7:50 am
KIX
-
IAD
26h 50m
2 stops
$973Air Canada
Tue, Apr 28 - Thu, May 7
Air Canada Logo
8:40 pm - 4:25 pm
DCA
-
KIX
30h 45m
2 stops
Air Canada Logo
6:00 pm - 10:20 am
KIX
-
DCA
29h 20m
2 stops
$974Air Canada
Tue, Sep 22 - Thu, Oct 8
EVA Air Logo
1:15 am - 5:15 pm
IAD
-
KIX
27h 00m
1 stop
EVA Air Logo
11:10 am - 10:00 pm
KIX
-
IAD
23h 50m
1 stop
$974EVA Air
Fri, Sep 4 - Mon, Sep 14
Air Canada Logo
10:08 pm - 4:25 pm
IAD
-
KIX
29h 17m
2 stops
Air Canada Logo
6:00 pm - 7:50 am
KIX
-
IAD
26h 50m
2 stops
$976Air Canada
Sun, Apr 26 - Thu, May 7
Multiple Airlines Logo
6:59 am - 4:25 pm
DCA
-
KIX
20h 26m
1 stop
Multiple Airlines Logo
7:35 am - 8:00 pm
KIX
-
DCA
25h 25m
2 stops
$1,008Multiple Airlines
Tue, Oct 6 - Thu, Oct 22

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

Our best EVA Air deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
EVA Air
Sep 7
IAD1:15 amWashington, D.C. Dulles Intl
27h 00m
1 stop
KIX5:15 pmOsaka Kansai Intl
Sep 13
KIX6:30 pmOsaka Kansai Intl
40h 30m
1 stop
IAD10:00 pmWashington, D.C. Dulles Intl
$929
EVA Air
Sep 28
IAD1:15 amWashington, D.C. Dulles Intl
21h 55m
1 stop
KIX12:10 pmOsaka Kansai Intl
Oct 4
KIX6:30 pmOsaka Kansai Intl
40h 30m
1 stop
IAD10:00 pmWashington, D.C. Dulles Intl
$932
EVA Air
Sep 9
IAD1:15 amWashington, D.C. Dulles Intl
21h 55m
1 stop
KIX12:10 pmOsaka Kansai Intl
Sep 16
KIX1:10 pmOsaka Kansai Intl
21h 50m
1 stop
IAD10:00 pmWashington, D.C. Dulles Intl
$936

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

Our best Air Canada deals on Washington, D.C. to Osaka Kansai Intl Airport flight tickets
Air Canada
Apr 28
IAD10:07 pmWashington, D.C. Dulles Intl
29h 18m
2 stops
KIX4:25 pmOsaka Kansai Intl
May 7
KIX6:00 pmOsaka Kansai Intl
26h 50m
2 stops
IAD7:50 amWashington, D.C. Dulles Intl
$973
Air Canada
Sep 22
DCA8:40 pmWashington, D.C. Reagan-National
30h 45m
2 stops
KIX4:25 pmOsaka Kansai Intl
Oct 8
KIX6:00 pmOsaka Kansai Intl
29h 20m
2 stops
DCA10:20 amWashington, D.C. Reagan-National
$974
Air Canada
Apr 26
IAD10:08 pmWashington, D.C. Dulles Intl
29h 17m
2 stops
KIX4:25 pmOsaka Kansai Intl
May 7
KIX6:00 pmOsaka Kansai Intl
26h 50m
2 stops
IAD7:50 amWashington, D.C. Dulles Intl
$976

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 April 13, 2026.
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

Cheapest round-trip

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 9/7

1:15 am-5:15 pm

1 stop27h 00m

Osaka Kansai Intl

Sun 9/13

6:30 pm-10:00 pm

1 stop40h 30m

$929

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 9/28

1:15 am-12:10 pm

1 stop21h 55m

Osaka Kansai Intl

Sun 10/4

6:30 pm-10:00 pm

1 stop40h 30m

$932
Quickest round-trip

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-12:10 pm

1 stop21h 55m

Osaka Kansai Intl

Wed 9/16

1:10 pm-10:00 pm

1 stop21h 50m

$936

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-12:10 pm

1 stop21h 55m

Osaka Kansai Intl

Sun 9/13

6:30 pm-10:00 pm

1 stop40h 30m

$965

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Fri 9/25

1:15 am-5:15 pm

1 stop27h 00m

Osaka Kansai Intl

Sun 10/4

6:30 pm-10:00 pm

1 stop40h 30m

$967

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 4/28

10:07 pm-4:25 pm

2 stops29h 18m

Osaka Kansai Intl

Thu 5/7

6:00 pm-7:50 am

2 stops26h 50m

$973

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 9/22

8:40 pm-4:25 pm

2 stops30h 45m

Osaka Kansai Intl

Thu 10/8

6:00 pm-10:20 am

2 stops29h 20m

$974

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Fri 9/4

1:15 am-5:15 pm

1 stop27h 00m

Osaka Kansai Intl

Mon 9/14

11:10 am-10:00 pm

1 stop23h 50m

$974

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 4/26

10:08 pm-4:25 pm

2 stops29h 17m

Osaka Kansai Intl

Thu 5/7

6:00 pm-7:50 am

2 stops26h 50m

$976

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 10/6

6:59 am-4:25 pm

1 stop20h 26m

Osaka Kansai Intl

Thu 10/22

7:35 am-8:00 pm

2 stops25h 25m

$1,008

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

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

You could potentially save up to 11% 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 30m

Direct flights

None
The fastest flight from Washington, D.C. to Osaka Kansai Intl Airport takes 17h 30m
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

Frequently asked questions about flying from Washington, D.C. to Osaka Kansai Intl Airport

  • 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 30m.

  • 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.

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
ANAPriceFrom $964Free CancellationRating
8.4
1,171 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.

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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