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Cheap flights from Washington, D.C. Reagan-National Airport to Osaka from $304

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. Reagan-National Airport to Osaka departing on 1/14. 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. Reagan-National Airport to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:01 pm - 6:45 pmDCA-KIX
35h 44m3 stops
Alaska Airlines Logo
8:45 pm - 4:04 pmKIX-DCA
33h 19m2 stops
$981Alaska Airlines
Find Deal
Fri, Jan 30 - Fri, Feb 13
American Airlines Logo
8:47 am - 7:55 pmDCA-ITM
21h 08m2 stops
American Airlines Logo
2:40 pm - 7:46 pmITM-DCA
19h 06m2 stops
$988American Airlines
Find Deal
Fri, Jan 30 - Fri, Feb 13
Alaska Airlines Logo
5:09 pm - 6:45 pmDCA-KIX
35h 36m2 stops
Alaska Airlines Logo
8:45 pm - 4:01 pmKIX-DCA
33h 16m2 stops
$1,005Alaska Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 20
Multiple Airlines Logo
6:00 am - 5:40 pmDCA-KIX
45h 40m2 stops
Multiple Airlines Logo
3:00 pm - 10:35 pmKIX-DCA
21h 35m2 stops
$1,089Multiple Airlines
Find Deal
Thu, Nov 20 - Tue, Dec 2
Air Canada Logo
9:40 am - 8:20 pmDCA-ITM
20h 40m2 stops
Air Canada Logo
3:00 pm - 10:35 pmITM-DCA
21h 35m2 stops
$1,104Air Canada
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Fri, Jan 30 - Fri, Feb 13
Japan Airlines Logo
8:36 am - 7:55 pmDCA-ITM
21h 19m2 stops
Japan Airlines Logo
8:30 am - 6:57 pmITM-DCA
24h 27m2 stops
$1,165Japan Airlines
Find Deal
Wed, Dec 3 - Fri, Dec 26
Japan Airlines Logo
6:49 am - 7:20 pmDCA-ITM
22h 31m2 stops
Japan Airlines Logo
8:30 am - 12:46 pmITM-DCA
18h 16m2 stops
$1,168Japan Airlines
Find Deal
Mon, Dec 1 - Tue, Dec 16
Air Canada Logo
11:05 am - 4:25 pmDCA-KIX
40h 20m2 stops
Air Canada Logo
8:30 am - 10:27 pmKIX-DCA
26h 57m2 stops
$1,169Air Canada
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Thu, Apr 16 - Fri, May 8
United Airlines Logo
7:00 am - 4:40 pmDCA-KIX
19h 40m1 stop
United Airlines Logo
6:35 pm - 9:36 pmKIX-DCA
17h 01m1 stop
$1,213United Airlines
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Tue, Dec 2 - Fri, Dec 12
United Airlines Logo
7:00 am - 4:40 pmDCA-KIX
19h 40m1 stop
United Airlines Logo
8:20 am - 1:52 pmKIX-DCA
19h 32m2 stops
$1,215United Airlines
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Tue, Dec 2 - Fri, Dec 12

Cathay Pacific flights from Washington, D.C. Reagan-National Airport to Osaka

Our best Cathay Pacific deals on Washington, D.C. Reagan-National Airport to Osaka flight tickets
Cathay Pacific
Jan 13
DCA6:59 amWashington, D.C. Reagan-National
33h 21m
2 stops
KIX6:20 amOsaka Kansai Intl
Jan 20
KIX7:05 pmOsaka Kansai Intl
37h 39m
2 stops
DCA6:44 pmWashington, D.C. Reagan-National
$1,235
Find similar
Cathay Pacific
Mar 18
DCA11:59 amWashington, D.C. Reagan-National
37h 56m
3 stops
KIX2:55 pmOsaka Kansai Intl
Mar 30
KIX9:10 amOsaka Kansai Intl
28h 30m
2 stops
DCA12:40 amWashington, D.C. Reagan-National
$1,262
Find similar
Cathay Pacific
Jan 13
DCA9:35 amWashington, D.C. Reagan-National
39h 20m
3 stops
KIX2:55 pmOsaka Kansai Intl
Jan 20
KIX7:05 pmOsaka Kansai Intl
41h 50m
2 stops
DCA10:55 pmWashington, D.C. Reagan-National
$1,266
Find similar

Air Canada flights from Washington, D.C. Reagan-National Airport to Osaka

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Osaka flight tickets
Air Canada
Jan 30
DCA9:40 amWashington, D.C. Reagan-National
20h 40m
2 stops
ITM8:20 pmOsaka Itami
Feb 13
ITM3:00 pmOsaka Itami
21h 35m
2 stops
DCA10:35 pmWashington, D.C. Reagan-National
$1,104
Find similar
Air Canada
Apr 16
DCA11:05 amWashington, D.C. Reagan-National
40h 20m
2 stops
KIX4:25 pmOsaka Kansai Intl
May 8
KIX8:30 amOsaka Kansai Intl
26h 57m
2 stops
DCA10:27 pmWashington, D.C. Reagan-National
$1,169
Find similar
Air Canada
Mar 18
DCA6:00 amWashington, D.C. Reagan-National
22h 40m
2 stops
KIX5:40 pmOsaka Kansai Intl
Mar 30
KIX6:05 pmOsaka Kansai Intl
27h 54m
2 stops
DCA8:59 amWashington, D.C. Reagan-National
$1,197
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 November 5, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Fri 1/30

5:01 pm-6:45 pm

3 stops35h 44m

Osaka Kansai Intl

Fri 2/13

8:45 pm-4:04 pm

2 stops33h 19m

$981

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Fri 1/30

8:47 am-7:55 pm

2 stops21h 08m

Osaka Itami

Fri 2/13

2:40 pm-7:46 pm

2 stops19h 06m

$988

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Mon 1/12

5:09 pm-6:45 pm

2 stops35h 36m

Osaka Kansai Intl

Tue 1/20

8:45 pm-4:01 pm

2 stops33h 16m

$1,005

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Thu 11/20

6:00 am-5:40 pm

2 stops45h 40m

Osaka Kansai Intl

Tue 12/2

3:00 pm-10:35 pm

2 stops21h 35m

$1,089

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Fri 1/30

9:40 am-8:20 pm

2 stops20h 40m

Osaka Itami

Fri 2/13

3:00 pm-10:35 pm

2 stops21h 35m

$1,104

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Wed 12/3

8:36 am-7:55 pm

2 stops21h 19m

Osaka Itami

Fri 12/26

8:30 am-6:57 pm

2 stops24h 27m

$1,165

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Mon 12/1

6:49 am-7:20 pm

2 stops22h 31m

Osaka Itami

Tue 12/16

8:30 am-12:46 pm

2 stops18h 16m

$1,168

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Thu 4/16

11:05 am-4:25 pm

2 stops40h 20m

Osaka Kansai Intl

Fri 5/8

8:30 am-10:27 pm

2 stops26h 57m

$1,169

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 12/2

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Fri 12/12

6:35 pm-9:36 pm

1 stop17h 01m

$1,213

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 12/2

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Fri 12/12

8:20 am-1:52 pm

2 stops19h 32m

$1,215

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Osaka from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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 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. Reagan-National Airport. 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. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National Airport to Osaka flights?

You could potentially save up to 48% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Osaka flight.

When to book flights from Washington, D.C. Reagan-National Airport to Osaka

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

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

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Osaka. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Osaka.
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  • How far is Washington, D.C. Reagan-National to Osaka by plane?

    Washington, D.C. Reagan-National and Osaka are 6942.5 mi apart from one another. A reasonable flight in good conditions will take 19h 30m.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Osaka refresh daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Reagan-National Airport 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.

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 enables you to select and highlight flights to Osaka from Washington, D.C. with this policy.

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

momondo provides multiple filters to help you find the best flight to Osaka from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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