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Osaka

$431+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — OSA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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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 August 21, 2025.

Round-trip from

$983
(Air Canada)

One-way from

$431
(Kiwi.com)

Popular in

March

Cheapest in

July

Average price

$748
From Washington, D.C. Dulles Intl to Osaka (OSA)
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One-way flight from Washington, D.C. Dulles Intl to Osaka (OSA)
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Highest demand for flights based on searches. 18% potential increase in price ($300 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($61 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 21, 2025.

This Air Canada deal was found by Cheapflights users on 8/18. 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 12/210:11 pmIAD - ITM
2 stops30h 59mAir Canada
Tue 12/94:00 pmITM - IAD
2 stops18h 29mAir Canada
Deal found 8/18$959
This Air Canada deal was found by Cheapflights users on 8/20. 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.
Thu 11/275:50 pmIAD - KIX
2 stops33h 50mAir Canada
Thu 12/113:40 pmKIX - IAD
2 stops18h 49mAir Canada
Deal found 8/20$983
This Air Canada deal was found by Cheapflights users on 8/21. 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.
Thu 9/1810:20 amIAD - KIX
1 stop17h 05mAir Canada
Thu 9/256:05 pmKIX - IAD
2 stops28h 33mAir Canada
Deal found 8/21$988
This Air Canada deal was found by Cheapflights users on 8/21. 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.
Thu 11/2710:11 pmIAD - ITM
2 stops30h 59mAir Canada
Thu 12/113:00 pmITM - IAD
2 stops19h 29mAir Canada
Deal found 8/21$994
This Air Canada deal was found by Cheapflights users on 8/18. 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 12/29:00 amIAD - KIX
2 stops20h 25mAir Canada
Tue 12/93:40 pmKIX - IAD
2 stops18h 49mAir Canada
Deal found 8/18$997
This Orbitz deal was found by Cheapflights users on 8/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:20 amIAD - KIX
1 stop17h 05mAir Canada
Thu 10/236:05 pmKIX - IAD
2 stops28h 33mAir Canada
Deal found 8/19$998
This Air Canada deal was found by Cheapflights users on 8/19. 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.
Thu 10/301:20 pmIAD - KIX
2 stops39h 20mAir Canada
Mon 11/107:25 pmKIX - IAD
2 stops29h 58mAir Canada
Deal found 8/19$1,009
This Air Canada deal was found by Cheapflights users on 8/20. 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 9/2310:20 amIAD - KIX
2 stops20h 10mAir Canada
Thu 10/236:05 pmKIX - IAD
2 stops30h 08mAir Canada
Deal found 8/20$1,022
This Orbitz deal was found by Cheapflights users on 8/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:13 pmIAD - KIX
2 stops36h 42mMultiple Airlines
Tue 12/25:00 pmKIX - IAD
2 stops37h 36mMultiple Airlines
Deal found 8/19$1,038
This Air Canada deal was found by Cheapflights users on 8/19. 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.
Tue 11/115:50 pmIAD - KIX
2 stops33h 50mAir Canada
Sat 11/157:25 pmKIX - IAD
2 stops34h 56mAir Canada
Deal found 8/19$1,044
This Air Canada deal was found by Cheapflights users on 8/21. 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.
Sun 9/2110:20 amIAD - KIX
2 stops20h 10mAir Canada
Mon 9/296:05 pmKIX - IAD
2 stops30h 08mAir Canada
Deal found 8/21$1,057
This oojo deal was found by Cheapflights users on 8/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/95:40 pmIAD - KIX
2 stops30h 20mCathay Pacific
Thu 9/189:10 amKIX - IAD
2 stops38h 47mCathay Pacific
Deal found 8/21$1,066

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 August 21, 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.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 12/2

10:11 pm-7:10 pm

2 stops30h 59m

Osaka Itami

Tue 12/9

4:00 pm-8:29 pm

2 stops18h 29m

$959

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Thu 11/27

5:50 pm-5:40 pm

2 stops33h 50m

Osaka Kansai Intl

Thu 12/11

3:40 pm-8:29 pm

2 stops18h 49m

$983

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 2/1

9:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Sat 2/7

3:45 pm-8:29 pm

2 stops18h 44m

$988

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Thu 9/18

10:20 am-4:25 pm

1 stop17h 05m

Osaka Kansai Intl

Thu 9/25

6:05 pm-9:38 am

2 stops28h 33m

$988

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sat 1/10

9:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Tue 2/10

3:45 pm-8:29 pm

2 stops18h 44m

$990

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Thu 11/27

10:11 pm-7:10 pm

2 stops30h 59m

Osaka Itami

Thu 12/11

4:00 pm-9:20 pm

2 stops19h 20m

$994

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Thu 1/8

10:05 pm-7:25 pm

2 stops31h 20m

Osaka Kansai Intl

Thu 1/15

3:40 pm-8:29 pm

2 stops18h 49m

$997

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 2/17

9:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Fri 2/27

3:40 pm-8:29 pm

2 stops18h 49m

$997

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 9/23

10:20 am-7:30 pm

2 stops20h 10m

Osaka Kansai Intl

Thu 10/23

6:05 pm-11:13 am

2 stops30h 08m

$1,022

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Sat 1/31

10:05 pm-7:10 pm

2 stops31h 05m

Osaka Itami

Sat 2/14

4:00 pm-9:05 pm

2 stops19h 05m

$1,028

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 54 results
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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 August 21, 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 31% 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 August 21, 2025.
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
938 reviews

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.6

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me
ANA
8.4
Very good
938 reviews
ANA
8.4
Very good
938 reviews

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.6

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

SFO - NRT

ANA ground and flight crew are the best their is They are now officially my Airline of choice Crew are very attentive, friendly, sincere, helpful and respond to queries accurately, promptly and gives you the peace of mind when travelling Salute to the World’s Best Airline for me

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 $1,079, Air Canada can have you in Osaka from Washington, D.C. Dulles Intl Airport in 20h 30m. 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, United Airlines ($1,170), and ANA ($1,322) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. United Airlines is priced at 13% 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.

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Osaka (average of $871). Flying from Washington, D.C. Dulles Intl Airport to Osaka in June is currently the most expensive (average of $1,313). 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?

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

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Alternative routes for Dulles Intl to Osaka

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Kansai Intl flights
Reagan-National to Kansai Intl flights
Baltimore to Kansai Intl flights
Dulles Intl to Itami flights
Reagan-National to Itami flights
Baltimore to Itami flights

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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,170Average$1,667FlexibilityNo cancel feeOn-time69%
ANACheapest$1,322Average$1,660FlexibilityNo cancel feeOn-time80%

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