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Cheap flights from Washington, D.C. Reagan-National Airport to Osaka from $451

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 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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.
Multiple Airlines Logo
11:35 am - 12:55 pm
DCA
-
KIX
36h 20m
2 stops
Multiple Airlines Logo
9:45 am - 11:59 pm
KIX
-
DCA
27h 14m
2 stops
$1,212Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
11:35 am - 12:55 pm
DCA
-
KIX
36h 20m
2 stops
Multiple Airlines Logo
9:45 am - 11:59 pm
KIX
-
DCA
27h 14m
2 stops
$1,213Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
11:35 am - 9:15 pm
DCA
-
KIX
44h 40m
2 stops
Multiple Airlines Logo
9:45 am - 11:59 pm
KIX
-
DCA
27h 14m
2 stops
$1,216Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Multiple Airlines Logo
11:35 am - 9:15 pm
DCA
-
KIX
44h 40m
2 stops
Multiple Airlines Logo
9:45 am - 11:59 pm
KIX
-
DCA
27h 14m
2 stops
$1,217Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Cathay Pacific Logo
11:31 am - 6:40 am
DCA
-
KIX
30h 09m
2 stops
Cathay Pacific Logo
9:45 am - 11:59 pm
KIX
-
DCA
27h 14m
2 stops
$1,230Cathay Pacific
Tue, Sep 22 - Thu, Oct 8
ANA Logo
9:30 am - 6:10 pm
DCA
-
ITM
19h 40m
2 stops
ANA Logo
2:00 pm - 8:09 pm
ITM
-
DCA
19h 09m
2 stops
$1,422ANA
Mon, Oct 12 - Tue, Oct 20
ANA Logo
9:30 am - 7:10 pm
DCA
-
ITM
20h 40m
2 stops
ANA Logo
2:00 pm - 8:09 pm
ITM
-
DCA
19h 09m
2 stops
$1,423ANA
Tue, Sep 22 - Thu, Oct 8
Air Canada Logo
11:00 am - 6:55 pm
DCA
-
ITM
18h 55m
2 stops
Air Canada Logo
2:00 pm - 7:59 pm
ITM
-
DCA
18h 59m
2 stops
$1,487Air Canada
Sun, Sep 20 - Mon, Sep 28
Air Canada Logo
9:40 am - 6:55 pm
DCA
-
ITM
20h 15m
2 stops
Air Canada Logo
4:00 pm - 7:58 pm
ITM
-
DCA
17h 58m
2 stops
$1,530Air Canada
Sun, Oct 18 - Wed, Nov 4
American Airlines Logo
8:04 am - 7:50 pm
DCA
-
ITM
22h 46m
2 stops
American Airlines Logo
1:25 pm - 9:27 pm
ITM
-
DCA
21h 02m
2 stops
$1,591American Airlines
Sat, Aug 15 - Tue, Aug 25

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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
Sep 22
DCA11:31 amWashington, D.C. Reagan-National
30h 09m
2 stops
KIX6:40 amOsaka Kansai Intl
Oct 8
KIX9:45 amOsaka Kansai Intl
27h 14m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
$1,230
Cathay Pacific
Oct 12
DCA6:59 pmWashington, D.C. Reagan-National
34h 06m
2 stops
KIX6:05 pmOsaka Kansai Intl
Oct 22
KIX9:05 amOsaka Kansai Intl
27h 54m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
$1,249
Cathay Pacific
Sep 26
DCA11:31 amWashington, D.C. Reagan-National
30h 09m
2 stops
KIX6:40 amOsaka Kansai Intl
Oct 4
KIX4:15 pmOsaka Kansai Intl
40h 44m
3 stops
DCA7:59 pmWashington, D.C. Reagan-National
$1,258

Japan Airlines flights from Washington, D.C. Reagan-National Airport to Osaka

Our best Japan Airlines deals on Washington, D.C. Reagan-National Airport to Osaka flight tickets
Japan Airlines
Oct 12
DCA7:45 amWashington, D.C. Reagan-National
23h 05m
2 stops
ITM7:50 pmOsaka Itami
Oct 20
ITM2:35 pmOsaka Itami
20h 24m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
$1,652
Japan Airlines
Aug 17
DCA6:00 amWashington, D.C. Reagan-National
23h 40m
2 stops
ITM6:40 pmOsaka Itami
Aug 31
ITM8:00 pmOsaka Itami
33h 29m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
$1,754
Japan Airlines
Aug 1
DCA8:40 amWashington, D.C. Reagan-National
21h 05m
1 stop
KIX6:45 pmOsaka Kansai Intl
Aug 14
KIX5:45 pmOsaka Kansai Intl
35h 44m
1 stop
DCA4:29 pmWashington, D.C. Reagan-National
$1,886

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 July 24, 2026.
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

Cheapest round-trip

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Thu 9/3

11:35 am-12:55 pm

2 stops36h 20m

Osaka Kansai Intl

Thu 9/10

9:45 am-11:59 pm

2 stops27h 14m

$1,212

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Thu 9/3

11:35 am-12:55 pm

2 stops36h 20m

Osaka Kansai Intl

Thu 9/10

9:45 am-11:59 pm

2 stops27h 14m

$1,213

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 9/1

11:35 am-9:15 pm

2 stops44h 40m

Osaka Kansai Intl

Tue 9/15

9:45 am-11:59 pm

2 stops27h 14m

$1,216

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 9/1

11:35 am-9:15 pm

2 stops44h 40m

Osaka Kansai Intl

Tue 9/15

9:45 am-11:59 pm

2 stops27h 14m

$1,217

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 9/22

11:31 am-6:40 am

2 stops30h 09m

Osaka Kansai Intl

Thu 10/8

9:45 am-11:59 pm

2 stops27h 14m

$1,230

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Mon 10/12

9:30 am-6:10 pm

2 stops19h 40m

Osaka Itami

Tue 10/20

2:00 pm-8:09 pm

2 stops19h 09m

$1,422

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Tue 9/22

9:30 am-7:10 pm

2 stops20h 40m

Osaka Itami

Thu 10/8

2:00 pm-8:09 pm

2 stops19h 09m

$1,423
Quickest round-trip

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Sun 9/20

11:00 am-6:55 pm

2 stops18h 55m

Osaka Itami

Mon 9/28

2:00 pm-7:59 pm

2 stops18h 59m

$1,487

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Sun 10/18

9:40 am-6:55 pm

2 stops20h 15m

Osaka Itami

Wed 11/4

4:00 pm-7:58 pm

2 stops17h 58m

$1,530

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Sat 8/15

8:04 am-7:50 pm

2 stops22h 46m

Osaka Itami

Tue 8/25

1:25 pm-9:27 pm

2 stops21h 02m

$1,591

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. 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

Can stopping save me money on Washington, D.C. Reagan-National Airport to Osaka flights?

You could potentially save up to 45% 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

Fastest flight time

18h 55m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Osaka takes 18h 55m
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.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Osaka

  • 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 18h 55m.

  • 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.

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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