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Osaka

$532+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSA
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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Find 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 October 31, 2025.

This Air Canada deal was found by Cheapflights users on 10/30. 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 11/271:20 pmIAD - KIX
2 stops38h 20mMultiple Airlines
Thu 12/118:00 amKIX - IAD
2 stops26h 59mMultiple Airlines
Deal found 10/30$1,084
This Expedia deal was found by Cheapflights users on 10/30. 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 11/249:00 amIAD - KIX
2 stops23h 15mMultiple Airlines
Mon 12/89:05 pmKIX - IAD
2 stops37h 21mMultiple Airlines
Deal found 10/30$1,123
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/2411:10 amIAD - UKB
1 stop20h 35mANA
Mon 12/89:15 pmUKB - IAD
1 stop25h 55mANA
Deal found 10/30$1,198
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/2411:10 amIAD - ITM
1 stop19h 25mANA
Mon 12/88:20 pmITM - IAD
1 stop26h 50mANA
Deal found 10/30$1,198
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/2411:10 amIAD - KIX
1 stop18h 15mANA
Mon 12/89:10 pmKIX - IAD
1 stop26h 00mANA
Deal found 10/30$1,201
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:42 pmIAD - KIX
3 stops35h 23mMultiple Airlines
Sat 12/67:50 amKIX - IAD
3 stops27h 09mMultiple Airlines
Deal found 10/29$1,216
This Air Canada deal was found by Cheapflights users on 10/30. 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 11/2710:11 pmIAD - ITM
2 stops30h 59mAir Canada
Thu 12/114:00 pmITM - IAD
2 stops18h 26mAir Canada
Deal found 10/30$1,222
This Air Canada deal was found by Cheapflights users on 10/28. 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 12/710:11 pmIAD - KIX
2 stops31h 14mAir Canada
Sun 12/143:45 pmKIX - IAD
2 stops18h 41mAir Canada
Deal found 10/28$1,225
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:20 pmIAD - KIX
1 stop20h 00mANA
Fri 12/267:05 amKIX - IAD
1 stop22h 35mANA
Deal found 10/29$1,229
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:20 amIAD - ITM
2 stops20h 35mANA
Fri 12/267:05 amITM - IAD
1 stop16h 05mANA
Deal found 10/29$1,231
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/2711:10 amIAD - ITM
1 stop17h 00mANA
Thu 12/117:30 amITM - IAD
1 stop15h 40mANA
Deal found 10/30$1,248
This FlightHub deal was found by Cheapflights users on 10/30. 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 11/2711:10 amIAD - KIX
1 stop18h 15mANA
Thu 12/117:05 amKIX - IAD
1 stop16h 05mANA
Deal found 10/30$1,251

Cheap 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 October 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,067
(Air Canada)

One-way from

$532
(Kiwi.com)

Popular in

May

Cheapest in

July

Average price

$1,633
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. 23% potential increase in price ($408 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 31, 2025.
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

Dulles Intl

Fly to

Osaka

Route

Depart

Return

Price

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Sun 4/19

12:10 pm-9:45 pm

1 stop20h 35m

Kobe

Wed 4/29

9:15 pm-10:05 am

1 stop25h 50m

$1,092

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sun 4/19

12:15 pm-7:10 pm

1 stop17h 55m

Osaka Itami

Wed 4/29

7:30 am-10:05 am

1 stop15h 35m

$1,093

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 1/13

11:10 am-6:10 pm

1 stop17h 00m

Osaka Itami

Sat 1/31

2:00 pm-3:40 pm

1 stop15h 40m

$1,137

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Thu 4/16

12:15 pm-9:45 pm

1 stop20h 30m

Kobe

Fri 5/8

9:15 pm-10:05 am

1 stop25h 50m

$1,182

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sun 1/11

9:45 am-7:55 pm

2 stops20h 10m

Osaka Itami

Sun 1/18

3:00 pm-8:26 pm

2 stops19h 26m

$1,185

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 1/11

9:00 am-10:20 pm

2 stops23h 20m

Osaka Kansai Intl

Sun 1/18

3:45 pm-8:29 pm

2 stops18h 44m

$1,195

Washington, D.C.Kobe

IAD - UKB

IADUKB

Washington, D.C. Dulles Intl

Mon 11/24

11:10 am-9:45 pm

1 stop20h 35m

Kobe

Mon 12/8

9:15 pm-9:10 am

1 stop25h 55m

$1,198

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 2/16

11:10 am-7:25 pm

1 stop18h 15m

Osaka Kansai Intl

Thu 2/26

8:20 am-3:40 pm

1 stop21h 20m

$1,201

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sat 3/14

10:23 pm-6:10 pm

2 stops30h 47m

Osaka Itami

Thu 3/26

1:00 pm-4:40 pm

1 stop16h 40m

$1,210

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 2/17

6:03 am-7:25 pm

2 stops23h 22m

Osaka Kansai Intl

Fri 2/27

8:20 am-3:40 pm

1 stop21h 20m

$1,212

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 52 results
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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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Osaka flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 time of day to fly from IAD to OSA?

Find hourly flight availability from Dulles Intl to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Osaka, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 35% versus a flight at noon.

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 October 31, 2025.
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
998 reviews

Food

7.8

Comfort

8.2

Entertainment

7.9

Crew

8.7

Boarding

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
ANA
8.4
Very good
998 reviews
ANA
8.4
Very good
998 reviews

Food

7.8

Comfort

8.2

Entertainment

7.9

Crew

8.7

Boarding

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
United Airlines
7.4
Good
8,995 reviews
ANA
8.4
Very good
998 reviews

Food

7.8

Comfort

8.2

Entertainment

7.9

Crew

8.7

Boarding

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

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 $1,092, ANA can have you in Osaka from Washington, D.C. Dulles Intl Airport in 20h 35m. Airlines will cover a distance of 6935 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 ($1,134), and United Airlines ($1,170) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. ANA is priced at 17% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Osaka one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Osaka are Alaska Airlines ($625), ANA ($672), and Japan Airlines ($684).

  • 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
Nishinomiya

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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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$1,134Average$1,663FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$1,170Average$1,770FlexibilityNo cancel feeOn-time69%

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