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Osaka

$352+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This oojo deal was found by Cheapflights users on 3/9. 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.
Wed 9/91:15 am
IAD
-
UKB
1 stop19h 45m
EVA Air
Mon 9/1411:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 3/9$876
This oojo deal was found by Cheapflights users on 3/9. 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.
Wed 9/91:15 am
IAD
-
KIX
1 stop19h 55m
EVA Air
Mon 9/141:10 pm
KIX
-
IAD
1 stop21h 50m
EVA Air
Deal found 3/9$880
This oojo deal was found by Cheapflights users on 3/7. 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 stop19h 55m
EVA Air
Sun 10/46:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Deal found 3/7$915
This KAYAK deal was found by Cheapflights users on 3/8. 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 9/141:15 am
IAD
-
KIX
1 stop19h 55m
EVA Air
Wed 9/161:10 pm
KIX
-
IAD
1 stop21h 50m
EVA Air
Deal found 3/8$919
This KAYAK deal was found by Cheapflights users on 3/8. 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.
Wed 9/91:15 am
IAD
-
UKB
1 stop19h 45m
EVA Air
Mon 9/2111:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 3/8$926
This KAYAK deal was found by Cheapflights users on 3/8. 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.
Wed 9/91:15 am
IAD
-
KIX
1 stop19h 55m
EVA Air
Sun 9/206:30 pm
KIX
-
IAD
1 stop40h 30m
EVA Air
Deal found 3/8$930
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/81:15 pm
IAD
-
KIX
1 stop20h 25m
Delta
Tue 4/142:15 am
KIX
-
IAD
2 stops34h 40m
Delta
Deal found 3/11$945
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:15 pm
IAD
-
KIX
1 stop18h 30m
Delta
Mon 4/202:15 am
KIX
-
IAD
2 stops27h 16m
Delta
Deal found 3/9$946
This oojo deal was found by Cheapflights users on 3/9. 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 9/121:15 am
IAD
-
UKB
1 stop19h 45m
EVA Air
Fri 9/1811:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 3/9$949
This KAYAK deal was found by Cheapflights users on 3/8. 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.
Sat 9/121:15 am
IAD
-
UKB
1 stop19h 45m
EVA Air
Wed 9/1611:00 am
UKB
-
IAD
1 stop24h 00m
EVA Air
Deal found 3/8$953
This oojo deal was found by Cheapflights users on 3/7. 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 9/51:15 am
IAD
-
KIX
1 stop21h 55m
EVA Air
Sat 9/1911:10 am
KIX
-
IAD
1 stop23h 50m
EVA Air
Deal found 3/7$953
This KAYAK deal was found by Cheapflights users on 3/8. 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 9/141:15 am
IAD
-
KIX
1 stop19h 55m
EVA Air
Sat 9/191:10 pm
KIX
-
IAD
1 stop21h 50m
EVA Air
Deal found 3/8$957

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$945
(Delta)

One-way from

$352
(Trip.com)

Popular in

December

Cheapest in

July

Average price

$2,486
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. 29% potential increase in price ($600 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($137 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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 - ITM

IADITM

Washington, D.C. Dulles Intl

Sun 4/19

12:15 pm-7:25 am

1 stop30h 10m

Osaka Itami

Tue 5/5

7:00 pm-10:05 am

1 stop28h 05m

$1,176

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Wed 5/20

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Fri 6/5

7:05 am-3:50 pm

1 stop21h 45m

$1,196
Quickest round-trip

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Sun 5/17

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Sun 5/31

7:05 am-10:05 am

1 stop16h 00m

$1,202

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sun 4/12

10:10 pm-5:05 pm

2 stops29h 55m

Osaka Itami

Thu 4/23

12:55 pm-10:05 am

1 stop34h 10m

$1,291

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Fri 4/24

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Fri 5/1

7:05 am-10:05 am

1 stop16h 00m

$1,303

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 4/26

6:30 am-2:50 pm

1 stop19h 20m

Osaka Kansai Intl

Sun 5/3

4:55 pm-7:02 am

1 stop27h 07m

$1,319

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-5:05 pm

2 stops22h 05m

Osaka Itami

Wed 4/22

12:55 pm-9:04 pm

2 stops21h 09m

$1,341

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Thu 5/21

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Fri 6/5

7:05 am-3:50 pm

1 stop21h 45m

$1,346

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sat 4/25

6:10 am-6:45 pm

1 stop23h 35m

Osaka Kansai Intl

Sat 5/2

5:45 pm-5:40 am

1 stop24h 55m

$1,383

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Sat 5/2

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Sun 5/17

7:05 am-2:03 pm

2 stops19h 58m

$1,384

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 60 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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 March 12, 2026.
See what other customers who have flown with ANA and United Airlines 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
1,125 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Crew

8.7

Food

7.8

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
ANA
8.4
Very good
1,125 reviews
ANA
8.4
Very good
1,125 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Crew

8.7

Food

7.8

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
United Airlines
7.4
Good
9,418 reviews
ANA
8.4
Very good
1,125 reviews

Comfort

8.2

Entertainment

8.0

Overall

8.4

Crew

8.7

Food

7.8

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!

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 $1,291, ANA can have you in Osaka from Washington, D.C. Dulles Intl Airport in 29h 55m. Airlines will cover a distance of 6921 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Osaka round-trip?

    According to our current data, ANA ($964), and United Airlines ($1,170) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. ANA is priced at 33% 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 - Osaka Itami or Washington, D.C. Dulles Intl - Kobe.

  • 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

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Top 2 airlines flying from Dulles Intl to Osaka

Discover the top 2 airlines 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$964Average$1,377FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,170Average$1,667FlexibilityNo cancel feeOn-time69%

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