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Dulles Intl

$456+ Cheap flights from Osaka (OSA) to Dulles Intl (IAD)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — IAD
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap flight deals from Osaka to Dulles Intl

Cheapest flights from Osaka to Dulles Intl
Explore the most affordable flight options available from Osaka to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This FlightHub deal was found by Cheapflights users on 3/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Fri 10/301:15 am
IAD
-
KIX
1 stop21h 40m
EVA Air
Deal found 3/19$952
This SmartFares deal was found by Cheapflights users on 3/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:10 pm
KIX
-
IAD
1 stop21h 50m
Multiple Airlines
Fri 10/305:38 pm
IAD
-
KIX
2 stops29h 17m
Multiple Airlines
Deal found 3/19$974
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:10 pm
KIX
-
IAD
1 stop22h 20m
EVA Air
Fri 7/241:50 am
IAD
-
KIX
1 stop21h 20m
EVA Air
Deal found 3/19$975
This FlightHub deal was found by Cheapflights users on 3/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 pm
KIX
-
IAD
2 stops25h 58m
Multiple Airlines
Fri 10/301:15 am
IAD
-
KIX
1 stop21h 40m
Multiple Airlines
Deal found 3/19$977
This EVA Air deal was found by Cheapflights users on 3/19. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/286:30 pm
KIX
-
IAD
1 stop41h 00m
EVA Air
Fri 7/171:50 am
IAD
-
KIX
1 stop26h 25m
EVA Air
Deal found 3/19$990
This SmartFares deal was found by Cheapflights users on 3/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:10 pm
KIX
-
IAD
1 stop21h 50m
Multiple Airlines
Fri 11/65:38 pm
IAD
-
KIX
2 stops26h 17m
Multiple Airlines
Deal found 3/19$1,003
This FlightHub deal was found by Cheapflights users on 3/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:10 pm
KIX
-
IAD
1 stop21h 50m
EVA Air
Wed 10/281:15 am
IAD
-
KIX
1 stop21h 40m
EVA Air
Deal found 3/19$1,034
This Trip.com deal was found by Cheapflights users on 3/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:05 am
KIX
-
IAD
1 stop23h 25m
Air China
Fri 10/3011:00 pm
IAD
-
KIX
1 stop32h 10m
Air China
Deal found 3/19$1,070
This EVA Air deal was found by Cheapflights users on 3/19. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Mon 10/261:15 am
IAD
-
KIX
1 stop26h 40m
EVA Air
Deal found 3/19$1,074
This oojo deal was found by Cheapflights users on 3/19. 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.
Fri 10/2311:10 am
KIX
-
IAD
1 stop23h 50m
EVA Air
Fri 11/611:55 pm
IAD
-
KIX
1 stop27h 00m
EVA Air
Deal found 3/19$1,093
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:30 pm
ITM
-
IAD
2 stops22h 29m
Multiple Airlines
Thu 8/276:30 am
IAD
-
ITM
2 stops36h 00m
Multiple Airlines
Deal found 3/18$1,457
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:25 pm
ITM
-
IAD
2 stops24h 34m
Multiple Airlines
Tue 9/19:00 am
IAD
-
ITM
2 stops21h 50m
Multiple Airlines
Deal found 3/18$1,512

Find flight deals from Osaka to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Osaka (OSA) to Dulles Intl (IAD). 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$975
(Kiwi.com)

One-way from

$456
(Kiwi.com)
Provider with most accurate pricing for Osaka (OSA)-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Osaka (OSA)-Washington, D.C. Dulles Intl flights.
Search Deals
From Osaka (OSA) to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Osaka (OSA) to Washington, D.C. Dulles Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Osaka to Dulles Intl 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 March 22, 2026.
Use the filters below to find and compare flights from Osaka to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Mon 5/4

6:00 pm-11:17 am

2 stops30h 17m

Washington, D.C. Dulles Intl

Mon 5/11

10:14 pm-4:25 pm

2 stops53h 11m

$1,323

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 5/1

10:30 am-5:50 am

2 stops32h 20m

Washington, D.C. Dulles Intl

Fri 5/8

1:20 pm-6:05 pm

1 stop39h 45m

$1,473

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Mon 5/4

8:45 pm-5:41 pm

2 stops33h 56m

Washington, D.C. Dulles Intl

Fri 5/8

1:20 pm-10:30 pm

1 stop20h 10m

$1,504

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 8/20

2:30 pm-11:59 pm

2 stops22h 29m

Washington, D.C. Dulles Intl

Thu 9/3

6:30 am-7:35 am

2 stops36h 05m

$1,512

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 9/10

6:00 pm-7:43 am

2 stops26h 43m

Washington, D.C. Dulles Intl

Mon 9/14

3:45 pm-4:25 pm

2 stops59h 40m

$1,544

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 5/1

1:25 pm-5:50 am

2 stops29h 25m

Washington, D.C. Dulles Intl

Wed 5/6

7:20 pm-12:15 pm

2 stops27h 55m

$1,568

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Wed 9/16

4:55 pm-5:25 am

2 stops25h 30m

Washington, D.C. Dulles Intl

Sun 9/20

6:35 pm-2:50 pm

1 stop31h 15m

$1,629

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 9/2

12:50 pm-9:22 pm

2 stops21h 32m

Washington, D.C. Dulles Intl

Sun 9/6

6:35 pm-5:05 pm

2 stops33h 30m

$1,636

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 9/9

12:50 pm-9:22 pm

2 stops21h 32m

Washington, D.C. Dulles Intl

Sun 9/13

5:48 pm-5:05 pm

2 stops34h 17m

$1,639

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 7/3

9:20 am-12:55 am

2 stops28h 35m

Washington, D.C. Dulles Intl

Wed 7/15

6:30 am-2:50 pm

1 stop19h 20m

$1,650

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 40 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Osaka-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Osaka-Washington, D.C. Dulles Intl Airport 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 Osaka-Washington, D.C. Dulles Intl Airport 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 Osaka to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Osaka 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 Osaka to Washington, D.C. Dulles Intl Airport
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 Osaka to Dulles Intl. 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 Osaka to Washington, D.C. Dulles Intl Airport?

    Departing from Osaka to Washington, D.C. Dulles Intl Airport will take you 29h 25m. There are 6948 mi between Osaka and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Osaka to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Osaka to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Osaka to Dulles Intl?

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

  • Can I find deals for business class flights from Osaka to Dulles Intl?

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

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Osaka to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Kansai Intl to Dulles Intl flights
Osaka Itami to Dulles Intl flights

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