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Cheap flights from Washington, D.C. to Osaka from $457

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 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
ANA Logo
6:30 am - 4:40 pm
BWI
-
KIX
20h 10m1 stop
ANA Logo
7:05 am - 2:11 pm
KIX
-
BWI
21h 06m2 stops
$829ANA
Mon, Jan 5 - Thu, Jan 22
ANA Logo
6:15 am - 10:20 pm
BWI
-
KIX
26h 05m2 stops
ANA Logo
7:05 am - 2:11 pm
KIX
-
BWI
21h 06m2 stops
$830ANA
Sun, Jan 4 - Thu, Jan 22
ANA Logo
10:05 am - 9:45 pm
BWI
-
UKB
21h 40m2 stops
ANA Logo
9:15 pm - 2:11 pm
UKB
-
BWI
30h 56m2 stops
$835ANA
Tue, Jan 20 - Tue, Feb 3
ANA Logo
10:05 am - 7:30 am
BWI
-
ITM
31h 25m2 stops
ANA Logo
8:20 pm - 2:11 pm
ITM
-
BWI
31h 51m2 stops
$835ANA
Tue, Jan 20 - Tue, Feb 3
United Airlines Logo
6:30 am - 4:40 pm
BWI
-
KIX
20h 10m1 stop
United Airlines Logo
6:35 pm - 7:32 am
KIX
-
BWI
26h 57m1 stop
$839United Airlines
Mon, Jan 5 - Fri, Jan 23
United Airlines Logo
6:30 am - 4:40 pm
BWI
-
KIX
20h 10m1 stop
United Airlines Logo
8:20 am - 4:06 pm
KIX
-
BWI
21h 46m2 stops
$841United Airlines
Mon, Jan 5 - Fri, Jan 23
Delta Logo
6:05 am - 8:45 pm
BWI
-
KIX
24h 40m2 stops
Delta Logo
9:00 am - 11:44 pm
KIX
-
BWI
28h 44m2 stops
$853Delta
Tue, Jan 20 - Tue, Jan 27
Air Canada Logo
8:40 pm - 5:40 pm
DCA
-
KIX
31h 00m2 stops
Air Canada Logo
7:25 pm - 10:23 am
KIX
-
DCA
27h 58m2 stops
$1,084Air Canada
Sun, Mar 1 - Thu, Mar 12
Air Canada Logo
9:00 am - 7:10 pm
IAD
-
ITM
20h 10m2 stops
Air Canada Logo
4:00 pm - 8:26 pm
ITM
-
IAD
18h 26m2 stops
$1,087Air Canada
Tue, Jan 20 - Tue, Jan 27
Japan Airlines Logo
7:30 am - 7:15 pm
DCA
-
ITM
21h 45m2 stops
Japan Airlines Logo
8:25 am - 2:41 pm
ITM
-
DCA
19h 16m2 stops
$1,165Japan Airlines
Sun, Mar 1 - Thu, Mar 12

Air China flights from Washington, D.C. to Osaka

Our best Air China deals on Washington, D.C. to Osaka flight tickets
Air China
Apr 14
IAD11:00 pmWashington, D.C. Dulles Intl
27h 20m
1 stop
KIX3:20 pmOsaka Kansai Intl
Apr 24
KIX9:05 amOsaka Kansai Intl
23h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$1,031
Find similar
Air China
Jan 20
IAD10:00 pmWashington, D.C. Dulles Intl
24h 40m
1 stop
KIX12:40 pmOsaka Kansai Intl
Feb 3
KIX9:00 amOsaka Kansai Intl
23h 30m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$1,037
Find similar
Air China
Jan 6
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
$1,039
Find similar

Cathay Pacific flights from Washington, D.C. to Osaka

Our best Cathay Pacific deals on Washington, D.C. to Osaka flight tickets
Cathay Pacific
Feb 2
DCA9:35 amWashington, D.C. Reagan-National
30h 45m
2 stops
KIX6:20 amOsaka Kansai Intl
Feb 11
KIX7:05 pmOsaka Kansai Intl
37h 54m
2 stops
DCA6:59 pmWashington, D.C. Reagan-National
$1,255
Find similar
Cathay Pacific
Apr 15
DCA11:54 amWashington, D.C. Reagan-National
38h 01m
3 stops
KIX2:55 pmOsaka Kansai Intl
Apr 26
KIX10:00 amOsaka Kansai Intl
49h 15m
2 stops
DCA10:15 pmWashington, D.C. Reagan-National
$1,271
Find similar
Cathay Pacific
Dec 13
DCA9:41 amWashington, D.C. Reagan-National
39h 14m
3 stops
KIX2:55 pmOsaka Kansai Intl
Jan 10
KIX10:00 amOsaka Kansai Intl
26h 56m
2 stops
DCA10:56 pmWashington, D.C. Reagan-National
$3,294
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Osaka 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 8, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 1/5

6:30 am-4:40 pm

1 stop20h 10m

Osaka Kansai Intl

Thu 1/22

7:05 am-2:11 pm

2 stops21h 06m

$829

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Sun 1/4

6:15 am-10:20 pm

2 stops26h 05m

Osaka Kansai Intl

Thu 1/22

7:05 am-2:11 pm

2 stops21h 06m

$830

BaltimoreKobe

BWI - UKB

BWIUKB

Baltimore/Washington

Tue 1/20

10:05 am-9:45 pm

2 stops21h 40m

Kobe

Tue 2/3

9:15 pm-2:11 pm

2 stops30h 56m

$835

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Tue 1/20

10:05 am-7:30 am

2 stops31h 25m

Osaka Itami

Tue 2/3

8:20 pm-2:11 pm

2 stops31h 51m

$835

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 1/5

6:30 am-4:40 pm

1 stop20h 10m

Osaka Kansai Intl

Fri 1/23

6:35 pm-7:32 am

1 stop26h 57m

$839

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Mon 1/5

6:30 am-4:40 pm

1 stop20h 10m

Osaka Kansai Intl

Fri 1/23

8:20 am-4:06 pm

2 stops21h 46m

$841

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 1/20

6:05 am-8:45 pm

2 stops24h 40m

Osaka Kansai Intl

Tue 1/27

9:00 am-11:44 pm

2 stops28h 44m

$853

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Sun 3/1

8:40 pm-5:40 pm

2 stops31h 00m

Osaka Kansai Intl

Thu 3/12

7:25 pm-10:23 am

2 stops27h 58m

$1,084

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 1/20

9:00 am-7:10 pm

2 stops20h 10m

Osaka Itami

Tue 1/27

4:00 pm-8:26 pm

2 stops18h 26m

$1,087

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Sun 3/1

7:30 am-7:15 pm

2 stops21h 45m

Osaka Itami

Thu 3/12

8:25 am-2:41 pm

2 stops19h 16m

$1,165

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

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 month to fly to Osaka?

In general, September is the cheapest month to fly from Washington, D.C. to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,152. If you are unable to visit Osaka during the month of September, then departing from Washington, D.C. during the month October is also very affordable. Most momondo users find prices during this month for around $1,167.

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

According to our data, Wednesday is the cheapest day to fly to Osaka from Washington, D.C.. The lowest ticket price found for a Wednesday departure recently was $1,352. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Osaka for around $1,681.

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

Our data shows that the cheapest Washington, D.C. to Osaka flights are usually those with departure times in the evening. Our users have found flights to Osaka in the evening for as low as $1,390. Flights to Osaka are more costly in the morning, with an average ticket price of $1,475. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 29% on your flight if you consider stops on a Washington, D.C. to Osaka flight.

When to book flights from Washington, D.C. to Osaka

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Osaka 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 (WAS to OSA) flight deals and tips

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

Fastest flight time

17h 00m

Direct flights

None
The fastest flight from Washington, D.C. to Osaka takes 17h 00m
There are no direct flights from Washington, D.C. to Osaka. There are no popular flight routes from Washington, D.C. to Osaka.
Search flight deals

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

    There are 6939.3 mi between Washington, D.C. and Osaka. Flights usually cover this in 16h 55m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    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.

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

    The travel and health documents required for your trip to Osaka can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Osaka. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Washington, D.C. to Osaka

Compare and see reviews for airlines that fly from Washington, D.C. to Osaka with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $157Free CancellationRating
7.4
9,078 reviews
Search United Airlines flights
ANAPriceFrom $1,134Free CancellationRating
8.4
1,020 reviews
Search ANA flights

Traveling to a place near Osaka?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Osaka from Washington, D.C..

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

Yes. momondo allows you to filter the results for Washington, D.C. to Osaka flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and Osaka by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Osaka from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Japan

Fly into one of these airports located in Osaka

Airports listed have a maximum distance of 22.5 mi from Osaka
Osaka Itami Airport
Osaka Kansai Intl Airport