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$467+ Cheap flights from Reagan-National (DCA) to Osaka (OSA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — OSA
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Reagan-National to Osaka

Cheapest flights from Reagan-National to Osaka
Explore the most affordable flight options available from Reagan-National to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This oojo deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:36 amDCA - KIX
2 stops37h 09mCathay Pacific
Thu 1/89:25 amKIX - DCA
2 stops27h 35mCathay Pacific
Deal found 12/26$1,877
This Mytrip deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:59 amDCA - KIX
2 stops25h 21mMultiple Airlines
Mon 1/58:00 amKIX - DCA
3 stops28h 35mMultiple Airlines
Deal found 12/24$2,055
This oojo deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:36 amDCA - KIX
2 stops37h 09mCathay Pacific
Mon 1/59:25 amKIX - DCA
2 stops27h 34mCathay Pacific
Deal found 12/24$2,070
This Air Canada deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:40 amDCA - KIX
2 stops20h 55mMultiple Airlines
Thu 1/83:45 pmKIX - DCA
2 stops20h 50mMultiple Airlines
Deal found 12/24$2,143
This oojo deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmDCA - KIX
3 stops30h 20mCathay Pacific
Tue 1/64:15 pmKIX - DCA
3 stops44h 45mCathay Pacific
Deal found 12/25$2,154
This Mytrip deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amDCA - ITM
3 stops23h 55mMultiple Airlines
Mon 1/52:40 pmITM - DCA
2 stops21h 16mMultiple Airlines
Deal found 12/24$2,550
This Mytrip deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amDCA - ITM
2 stops23h 55mMultiple Airlines
Tue 1/62:30 pmITM - DCA
2 stops22h 05mMultiple Airlines
Deal found 12/25$2,760
This Cheapflightsfares deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:30 amDCA - ITM
2 stops21h 25mJapan Airlines
Thu 1/87:25 amITM - DCA
2 stops19h 19mJapan Airlines
Deal found 12/26$3,005
This KAYAK deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:30 amDCA - ITM
2 stops21h 25mJapan Airlines
Mon 1/58:10 pmITM - DCA
2 stops34h 58mJapan Airlines
Deal found 12/24$3,044
This Ovago deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:30 amDCA - ITM
2 stops22h 15mJapan Airlines
Tue 1/63:25 pmITM - DCA
2 stops18h 19mJapan Airlines
Deal found 12/25$3,083
This Cheapflightsfares deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:30 amDCA - ITM
2 stops21h 25mJapan Airlines
Sat 1/310:30 amITM - DCA
2 stops22h 10mJapan Airlines
Deal found 12/23$3,399
This business-class.com deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:25 pmDCA - ITM
2 stops26h 15mJapan Airlines
Thu 1/12:30 pmITM - DCA
2 stops20h 15mJapan Airlines
Deal found 12/25$9,661

Find flight deals from Reagan-National to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Osaka (OSA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$873
(Air Canada)

One-way from

$467
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,559
Provider with most accurate pricing for Washington, D.C. Reagan-National-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Osaka (OSA) flights.
Search Deals
From Washington, D.C. Reagan-National to Osaka (OSA)
Search Deals
One-way flight from Washington, D.C. Reagan-National to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated December 26, 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

Reagan-National

Fly to

Osaka

Route

Depart

Return

Price

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Sat 1/24

8:40 pm-7:10 pm

2 stops32h 30m

Osaka Itami

Sat 1/31

3:25 pm-10:35 pm

2 stops21h 10m

$913

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Fri 1/30

6:59 am-7:10 pm

2 stops22h 11m

Osaka Itami

Fri 2/13

4:00 pm-10:35 pm

2 stops20h 35m

$913

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Wed 3/4

8:27 am-7:50 pm

2 stops21h 23m

Osaka Itami

Wed 3/18

2:35 pm-10:16 pm

2 stops20h 41m

$944

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Wed 1/28

8:47 am-7:55 pm

2 stops21h 08m

Osaka Itami

Tue 2/10

2:40 pm-10:37 pm

2 stops21h 57m

$966

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Sun 1/18

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Fri 3/6

6:35 pm-9:45 pm

1 stop17h 10m

$969

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Mon 1/19

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Thu 3/5

6:35 pm-9:45 pm

1 stop17h 10m

$969

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Sun 1/18

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Wed 3/4

6:35 pm-9:39 pm

1 stop17h 04m

$969

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 1/21

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Thu 3/5

6:35 pm-9:45 pm

1 stop17h 10m

$969

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 3/4

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Wed 3/18

8:20 am-10:52 pm

2 stops27h 32m

$971

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 1/21

7:00 am-4:40 pm

1 stop19h 40m

Osaka Kansai Intl

Tue 3/3

8:20 am-8:59 pm

2 stops26h 39m

$971

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 44 results
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  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Osaka flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Osaka flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Osaka flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Osaka flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Osaka
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Osaka?

    For as low as $969, Air Canada can have you in Osaka from Washington, D.C. Reagan-National Airport in 19h 40m. The distance between Washington, D.C. Reagan-National Airport and Osaka is about 6964 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Osaka?

    When deciding which route to take from Washington, D.C. Reagan-National Airport to Osaka consider Washington, D.C. Reagan-National - Osaka Kansai Intl, Washington, D.C. Reagan-National - Osaka Itami or Washington, D.C. Reagan-National - Kobe as they are the most popular.

  • Can I find deals for flights from Reagan-National to Osaka that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Osaka?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Osaka.

  • Can I find deals for business class flights from Reagan-National to Osaka?

    Yes. Cheapflights offers flight deals from Reagan-National to Osaka by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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