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Osaka

$478+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSA
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
1 adult, Economy
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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 July 6, 2026.

This oojo deal was found by Cheapflights users on 7/2. 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 9/281:15 am
IAD
-
KIX
1 stop21h 55m
EVA Air
Sun 10/46:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Deal found 7/2$1,156
This Justfly.com deal was found by Cheapflights users on 7/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:50 am
IAD
-
UKB
1 stop27h 10m
EVA Air
Mon 9/1411:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 7/5$1,164
This Justfly.com deal was found by Cheapflights users on 7/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:55 pm
IAD
-
KIX
1 stop22h 00m
EVA Air
Sun 11/156:10 pm
KIX
-
IAD
1 stop40h 45m
EVA Air
Deal found 7/1$1,168
This oojo deal was found by Cheapflights users on 7/3. 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 9/251:15 am
IAD
-
KIX
1 stop27h 00m
EVA Air
Sun 10/46:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Deal found 7/3$1,198
This Justfly.com deal was found by Cheapflights users on 7/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:55 am
IAD
-
KIX
1 stop22h 00m
EVA Air
Mon 11/1610:55 am
KIX
-
IAD
1 stop24h 00m
EVA Air
Deal found 7/1$1,206
This EVA Air deal was found by Cheapflights users on 7/4. 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.
Mon 9/71:15 am
IAD
-
UKB
1 stop27h 45m
EVA Air
Wed 9/2311:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 7/4$1,211
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 11/211:55 pm
IAD
-
KIX
1 stop22h 00m
EVA Air
Wed 11/1812:55 pm
KIX
-
IAD
1 stop22h 00m
EVA Air
Deal found 7/1$1,212
This EVA Air deal was found by Cheapflights users on 7/4. 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.
Mon 9/71:15 am
IAD
-
KIX
1 stop27h 00m
EVA Air
Mon 9/211:10 pm
KIX
-
IAD
1 stop21h 50m
EVA Air
Deal found 7/4$1,216
This oojo deal was found by Cheapflights users on 7/3. 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.
Sat 11/1411:55 pm
IAD
-
KIX
1 stop22h 00m
EVA Air
Thu 11/266:10 pm
KIX
-
IAD
1 stop40h 45m
EVA Air
Deal found 7/3$1,232
This Justfly.com deal was found by Cheapflights users on 7/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:55 am
IAD
-
KIX
1 stop22h 00m
EVA Air
Sat 11/1412:55 pm
KIX
-
IAD
1 stop22h 00m
EVA Air
Deal found 7/1$1,244
This Air Canada deal was found by Cheapflights users on 7/3. 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 8/239:07 am
IAD
-
KIX
2 stops42h 18m
Air Canada
Mon 8/316:00 pm
KIX
-
IAD
2 stops40h 18m
Air Canada
Deal found 7/3$1,246
This Air Canada deal was found by Cheapflights users on 7/5. 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 9/19:07 am
IAD
-
KIX
2 stops42h 18m
Air Canada
Mon 9/146:00 pm
KIX
-
IAD
1 stop25h 30m
Air Canada
Deal found 7/5$1,247

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 July 6, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,156
(oojo)

One-way from

$478
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$324
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. 24% potential increase in price ($438 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($149 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 6, 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.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 9/29

4:56 pm-2:50 pm

3 stops32h 54m

Osaka Kansai Intl

Sun 10/4

7:25 pm-5:40 am

2 stops47h 15m

$1,264

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sat 9/5

1:15 am-12:10 pm

1 stop21h 55m

Osaka Kansai Intl

Thu 9/10

6:30 pm-10:00 pm

1 stop40h 30m

$1,296

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Mon 8/17

10:19 pm-9:45 pm

2 stops34h 26m

Kobe

Mon 8/24

7:05 am-11:21 am

2 stops41h 16m

$1,373

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 9/20

3:08 pm-2:50 pm

3 stops34h 42m

Osaka Kansai Intl

Sun 9/27

9:45 am-2:18 pm

2 stops41h 33m

$1,373

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Sat 10/17

1:15 am-6:00 pm

1 stop27h 45m

Kobe

Wed 11/4

11:00 am-8:55 pm

1 stop23h 55m

$1,391

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 9/22

4:56 pm-2:50 pm

3 stops32h 54m

Osaka Kansai Intl

Thu 10/8

9:05 am-11:23 pm

2 stops27h 18m

$1,417

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Tue 9/22

5:57 pm-11:45 am

2 stops28h 48m

Kobe

Thu 10/8

11:40 am-5:40 am

2 stops31h 00m

$1,424

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Wed 8/26

5:47 pm-11:45 am

2 stops28h 58m

Kobe

Sun 8/30

11:40 am-5:40 am

2 stops31h 00m

$1,465

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Thu 11/5

5:14 pm-10:30 am

2 stops27h 16m

Kobe

Thu 11/12

11:30 am-5:51 am

2 stops32h 21m

$1,474

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Sun 10/25

12:50 pm-10:10 am

1 stop32h 20m

Kobe

Mon 11/16

6:40 pm-9:50 am

1 stop29h 10m

$1,491

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 58 resultsSorted by cheapest first
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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 July.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Washington, D.C. Dulles Intl Airport-Osaka flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Osaka?

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Osaka (average of $247). Flying from Washington, D.C. Dulles Intl Airport to Osaka in December is currently the most expensive (average of $2,816). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 July 6, 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
8.3
Very good
1,263 reviews

Food

7.7

Boarding

8.5

Crew

8.7

Comfort

8.2

Entertainment

7.9

Overall

8.3

Reviews

1 / 20
4.0
Okay

PeggyLee,Jun 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
ANA
8.3
Very good
1,263 reviews
ANA
8.3
Very good
1,263 reviews

Food

7.7

Boarding

8.5

Crew

8.7

Comfort

8.2

Entertainment

7.9

Overall

8.3

Reviews

1 / 20
4.0
Okay

PeggyLee,Jun 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.

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 $1,519, EVA Air can have you in Osaka from Washington, D.C. Dulles Intl Airport in 19h 15m. Airlines will cover a distance of 6921 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 27% 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Osaka?

    Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Osaka (average of $247). Flying from Washington, D.C. Dulles Intl Airport to Osaka in December is currently the most expensive (average of $2,816). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Osaka?

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Nara

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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 July 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$964Average$1,230FlexibilityNo cancel feeOn-time80%

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