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Dulles Intl

$457+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — IAD
Jul 23 — Jul 301
Thu 7/23
Thu 7/30
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 June 23, 2026.

This Air Canada deal was found by Cheapflights users on 6/22. 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 8/36:00 pm
KIX
-
IAD
2 stops30h 12m
Air Canada
Mon 8/1710:19 pm
IAD
-
KIX
1 stop29h 06m
Air Canada
Deal found 6/22$1,195
This Air Canada deal was found by Cheapflights users on 6/22. 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.
Thu 9/36:00 pm
KIX
-
IAD
2 stops26h 43m
Air Canada
Wed 9/168:29 am
IAD
-
KIX
1 stop18h 56m
Air Canada
Deal found 6/22$1,203
This Gotogate deal was found by Cheapflights users on 6/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:00 pm
KIX
-
IAD
1 stop34h 24m
Air Canada
Sun 8/94:20 pm
IAD
-
KIX
2 stops35h 05m
Air Canada
Deal found 6/18$1,206
This Air Canada deal was found by Cheapflights users on 6/20. 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.
Tue 8/46:00 pm
KIX
-
IAD
1 stop25h 22m
Air Canada
Tue 8/119:55 am
IAD
-
KIX
1 stop17h 30m
Air Canada
Deal found 6/20$1,207
This Air Canada deal was found by Cheapflights users on 6/22. 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 8/316:00 pm
KIX
-
IAD
2 stops30h 13m
Air Canada
Tue 9/153:45 pm
IAD
-
KIX
2 stops35h 40m
Air Canada
Deal found 6/22$1,210
This Air Canada deal was found by Cheapflights users on 6/22. 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.
Sun 8/306:00 pm
KIX
-
IAD
1 stop34h 24m
Air Canada
Mon 9/148:29 am
IAD
-
KIX
1 stop18h 56m
Air Canada
Deal found 6/22$1,211
This Expedia deal was found by Cheapflights users on 6/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:00 pm
KIX
-
IAD
2 stops26h 44m
Air Canada
Mon 8/1010:14 pm
IAD
-
KIX
1 stop29h 11m
Air Canada
Deal found 6/19$1,212
This Gotogate deal was found by Cheapflights users on 6/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:00 pm
KIX
-
IAD
1 stop34h 24m
Air Canada
Wed 8/194:20 pm
IAD
-
KIX
1 stop35h 05m
Air Canada
Deal found 6/22$1,214
This Air Canada deal was found by Cheapflights users on 6/22. 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.
Sun 9/136:00 pm
KIX
-
IAD
2 stops40h 18m
Air Canada
Tue 9/299:55 am
IAD
-
KIX
1 stop17h 30m
Air Canada
Deal found 6/22$1,219
This Air Canada deal was found by Cheapflights users on 6/21. 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.
Sat 12/264:00 pm
ITM
-
IAD
2 stops18h 10m
Multiple Airlines
Sat 1/99:55 am
IAD
-
ITM
2 stops19h 15m
Multiple Airlines
Deal found 6/21$1,294
This Gotogate deal was found by Cheapflights users on 6/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:00 pm
ITM
-
IAD
2 stops18h 24m
Multiple Airlines
Mon 8/249:45 am
IAD
-
ITM
2 stops20h 10m
Multiple Airlines
Deal found 6/22$1,349
This Gotogate deal was found by Cheapflights users on 6/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:00 pm
ITM
-
IAD
2 stops18h 24m
Multiple Airlines
Tue 8/119:55 am
IAD
-
ITM
2 stops20h 15m
Multiple Airlines
Deal found 6/21$1,357

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 June 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,195
(Air Canada)

One-way from

$517
(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
Search Deals

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 June 23, 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

Tue 10/13

6:00 pm-7:43 am

2 stops26h 43m

Washington, D.C. Dulles Intl

Sun 10/18

10:10 pm-4:25 pm

2 stops29h 15m

$1,203

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Tue 8/4

6:00 pm-6:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Tue 8/11

9:55 am-4:25 pm

1 stop17h 30m

$1,207

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Mon 8/3

6:00 pm-7:44 am

2 stops26h 44m

Washington, D.C. Dulles Intl

Mon 8/10

10:14 pm-4:25 pm

1 stop29h 11m

$1,212

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 8/20

4:55 pm-12:57 am

1 stop21h 02m

Washington, D.C. Dulles Intl

Mon 8/24

6:42 am-2:50 pm

1 stop19h 08m

$1,300

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Sat 9/19

4:55 pm-10:19 pm

1 stop18h 24m

Washington, D.C. Dulles Intl

Sat 9/26

4:15 pm-2:50 pm

1 stop33h 35m

$1,307

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 8/4

3:00 pm-8:24 pm

2 stops18h 24m

Washington, D.C. Dulles Intl

Tue 8/11

9:55 am-7:10 pm

2 stops20h 15m

$1,357

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Mon 10/12

7:30 am-10:05 am

1 stop15h 35m

Washington, D.C. Dulles Intl

Sun 10/18

12:15 pm-7:10 pm

1 stop17h 55m

$1,358

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Mon 10/12

7:05 am-10:05 am

1 stop16h 00m

Washington, D.C. Dulles Intl

Mon 10/19

12:15 pm-7:10 pm

1 stop17h 55m

$1,358
Quickest round-trip

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Sun 10/11

7:05 am-10:05 am

1 stop16h 00m

Washington, D.C. Dulles Intl

Sun 10/18

12:15 pm-6:10 pm

1 stop16h 55m

$1,358

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 10/13

7:05 am-10:05 am

1 stop16h 00m

Washington, D.C. Dulles Intl

Tue 10/20

12:15 pm-8:15 pm

1 stop19h 00m

$1,358

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 43 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 15h 35m. There are 6921 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Laurel
Fredericksburg
Hanover
Chantilly
Manassas
Waldorf
Silver Spring
Largo
Clinton

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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