HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Osaka

$507+ Cheap flights from Dulles Intl (IAD) 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSA
May 19 — May 261
Tue 5/19
Tue 5/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Osaka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Osaka

Cheapest flights from Dulles Intl to Osaka
Explore the most affordable flight options available from Dulles Intl to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.

This Expedia deal was found by Cheapflights users on 4/15. 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.
Thu 9/109:55 am
IAD
-
KIX
1 stop17h 30m
Air Canada
Tue 9/226:00 pm
KIX
-
IAD
1 stop25h 30m
Air Canada
Deal found 4/15$1,046
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 9/284:00 pm
IAD
-
KIX
1 stop35h 25m
Air Canada
Wed 10/76:00 pm
KIX
-
IAD
1 stop34h 25m
Air Canada
Deal found 4/17$1,054
This FlightHub deal was found by Cheapflights users on 4/19. 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.
Wed 9/169:45 am
IAD
-
KIX
2 stops22h 05m
Multiple Airlines
Wed 9/236:00 pm
KIX
-
IAD
2 stops38h 00m
Multiple Airlines
Deal found 4/19$1,059
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 9/2810:36 pm
IAD
-
KIX
1 stop28h 49m
Air Canada
Fri 10/96:00 pm
KIX
-
IAD
1 stop35h 12m
Air Canada
Deal found 4/17$1,070
This Air Canada deal was found by Cheapflights users on 4/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:55 am
IAD
-
KIX
1 stop17h 30m
Air Canada
Sun 10/46:00 pm
KIX
-
IAD
1 stop15h 25m
Air Canada
Deal found 4/18$1,086
This FlightHub deal was found by Cheapflights users on 4/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:10 pm
IAD
-
KIX
2 stops29h 15m
Air Canada
Sun 10/46:00 pm
KIX
-
IAD
1 stop34h 25m
Air Canada
Deal found 4/18$1,088
This Air Canada deal was found by Cheapflights users on 4/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:00 pm
IAD
-
KIX
1 stop35h 25m
Air Canada
Wed 10/216:00 pm
KIX
-
IAD
1 stop15h 25m
Air Canada
Deal found 4/19$1,094
This FlightHub deal was found by Cheapflights users on 4/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:10 pm
IAD
-
KIX
2 stops29h 15m
Air Canada
Thu 10/86:00 pm
KIX
-
IAD
2 stops26h 43m
Air Canada
Deal found 4/18$1,122
This Air Canada deal was found by Cheapflights users on 4/14. 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 10/124:00 pm
IAD
-
KIX
1 stop35h 25m
Air Canada
Tue 10/206:00 pm
KIX
-
IAD
2 stops30h 23m
Air Canada
Deal found 4/14$1,124
This Priceline deal was found by Cheapflights users on 4/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:45 pm
IAD
-
ITM
2 stops38h 10m
Air Canada
Wed 9/162:00 pm
ITM
-
IAD
2 stops38h 00m
Air Canada
Deal found 4/14$1,152
This Air Canada deal was found by Cheapflights users on 4/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:45 am
IAD
-
ITM
2 stops20h 10m
Air Canada
Tue 9/152:00 pm
ITM
-
IAD
2 stops29h 30m
Air Canada
Deal found 4/18$1,249
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Wed 9/305:54 pm
IAD
-
UKB
2 stops27h 06m
Multiple Airlines
Wed 10/2111:00 am
UKB
-
IAD
1 stop24h 00m
Multiple Airlines
Deal found 4/16$1,300

Find flight deals from Dulles Intl to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 April 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,046
(Expedia)

One-way from

$507
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$769
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Osaka (OSA) flights.
Search Deals
From Washington, D.C. Dulles Intl to Osaka (OSA)
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($397 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($131 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 April 19, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Mon 7/6

12:50 pm-9:45 pm

1 stop19h 55m

Kobe

Wed 7/15

9:15 pm-10:05 am

1 stop25h 50m

$1,539

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Wed 5/27

6:30 am-2:50 pm

1 stop19h 20m

Osaka Kansai Intl

Sun 6/7

4:55 pm-9:24 am

2 stops29h 29m

$1,583

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 5/26

9:10 am-5:05 pm

2 stops42h 55m

Osaka Itami

Thu 6/11

12:50 pm-10:05 am

1 stop34h 15m

$1,649

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 5/26

9:10 am-5:05 pm

2 stops42h 55m

Osaka Itami

Wed 6/10

12:50 pm-10:05 am

1 stop34h 15m

$1,649

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Tue 7/7

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Thu 7/16

7:05 am-2:08 pm

2 stops20h 03m

$1,669

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Thu 9/10

12:35 pm-9:45 pm

1 stop20h 10m

Kobe

Sat 9/19

7:05 am-10:05 am

1 stop16h 00m

$1,675

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sun 7/5

6:33 am-5:05 pm

2 stops21h 32m

Osaka Itami

Fri 7/17

12:50 pm-12:55 am

2 stops25h 05m

$1,709

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Thu 6/11

8:29 am-7:50 pm

2 stops22h 21m

Osaka Kansai Intl

Fri 6/26

9:20 am-3:50 pm

1 stop19h 30m

$1,752

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sat 7/4

6:30 am-2:50 pm

1 stop19h 20m

Osaka Kansai Intl

Tue 7/14

4:55 pm-9:18 pm

1 stop17h 23m

$1,753

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 5/10

7:00 am-10:40 pm

2 stops26h 40m

Osaka Kansai Intl

Fri 5/22

2:15 am-11:39 pm

2 stops34h 24m

$1,769

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Showing 1-10 of 53 resultsSorted by cheapest first
1
2
3
...
6

Compare providers for flights from Dulles Intl to Osaka

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Osaka in April.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl 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. Dulles Intl Airport-Osaka flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl 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. Dulles Intl 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 Dulles Intl to Osaka

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

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Osaka?

Reviews of airlines servicing Osaka

Get insights into the airlines that provide service to Osaka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Osaka. Reviews last updated April 19, 2026.
See what other customers who have flown with ANA from Washington, D.C. Dulles Intl Airport to Osaka have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,179 reviews

Comfort

8.2

Overall

8.4

Food

7.8

Entertainment

8.0

Boarding

8.6

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

EWR - NRT

Flights were on time and flew ahead of schedule. Seating was comfortable. Meal quality left a little to be desired, and service was mostly mechanical.
ANA
8.4
Very good
1,179 reviews
ANA
8.4
Very good
1,179 reviews

Comfort

8.2

Overall

8.4

Food

7.8

Entertainment

8.0

Boarding

8.6

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

EWR - NRT

Flights were on time and flew ahead of schedule. Seating was comfortable. Meal quality left a little to be desired, and service was mostly mechanical.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Osaka?

    For as low as $1,583, ANA can have you in Osaka from Washington, D.C. Dulles Intl Airport in 19h 20m. Airlines will cover a distance of 6948 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Osaka round-trip?

    According to our current data, ANA ($964), offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. ANA is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Osaka?

    The most popular route from Washington, D.C. Dulles Intl Airport to Osaka is Washington, D.C. Dulles Intl - Osaka Kansai Intl. You may also consider Washington, D.C. Dulles Intl - Kobe or Washington, D.C. Dulles Intl - Osaka Itami.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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.

See more FAQs

Traveling to a place near Osaka?

Book flights to Osaka if you plan to visit one of these locations
Nara

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Dulles Intl to Osaka

Discover the top airline that operate flights from Dulles Intl to Osaka. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$964Average$1,269FlexibilityNo cancel feeOn-time80%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.