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Dulles Intl

$578+ Cheap flights from Osaka (OSA) to Dulles Intl (IAD)

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.
OSA — IAD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Osaka to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Osaka (OSA) to Dulles Intl (IAD). 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 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,307
(SmartFares)

One-way from

$578
(Kiwi.com)

Popular in

March

Cheapest in

October
Provider with most accurate pricing for Osaka (OSA)-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Osaka (OSA)-Washington, D.C. Dulles Intl flights.
Search Deals
From Osaka (OSA) to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Osaka (OSA) to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($287 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($87 potential savings vs. average RT price).
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Find flight deals from Osaka to Dulles Intl

Cheapest flights from Osaka to Dulles Intl
Explore the most affordable flight options available from Osaka to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/133:10 pmKIX - IAD
2 stops29h 17mMultiple Airlines
Fri 6/206:13 pmIAD - KIX
2 stops30h 47mMultiple Airlines
Deal found 4/29$1,307
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1212:00 pmKIX - IAD
1 stop40h 35mKLM
Thu 6/195:25 pmIAD - KIX
1 stop27h 55mKLM
Deal found 4/28$1,604
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/204:55 pmKIX - IAD
1 stop27h 40mUnited Airlines
Sun 6/291:05 pmIAD - KIX
2 stops36h 45mUnited Airlines
Deal found 4/28$1,727
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/252:35 pmITM - IAD
2 stops21h 04mAmerican Airlines
Mon 6/306:27 amIAD - ITM
2 stops23h 13mAmerican Airlines
Deal found 4/29$1,779
This StudentUniverse deal was found by Cheapflights users on 4/29. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/122:35 pmITM - IAD
2 stops29h 52mJapan Airlines
Thu 6/196:30 amIAD - ITM
2 stops24h 15mJapan Airlines
Deal found 4/29$1,964
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:30 amITM - IAD
1 stop15h 35mANA
Mon 6/3012:15 pmIAD - ITM
1 stop16h 55mANA
Deal found 4/29$1,989
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:55 pmKIX - IAD
1 stop26h 45mQatar Airways
Fri 6/209:00 pmIAD - KIX
1 stop31h 25mQatar Airways
Deal found 4/29$2,038
This Emirates deal was found by Cheapflights users on 4/28. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1211:45 pmKIX - IAD
1 stop45h 55mEmirates
Thu 6/1910:55 amIAD - KIX
1 stop41h 20mEmirates
Deal found 4/28$2,052
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/139:05 amKIX - IAD
1 stop23h 25mAir China
Fri 6/2011:00 pmIAD - KIX
1 stop27h 20mAir China
Deal found 4/29$2,056
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:05 pmKIX - IAD
1 stop28h 36mAir Canada
Fri 6/205:31 pmIAD - KIX
2 stops33h 54mAir Canada
Deal found 4/29$2,141
This Air France deal was found by Cheapflights users on 4/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/138:30 amITM - IAD
2 stops47h 45mAir France
Fri 6/206:30 pmIAD - ITM
2 stops29h 05mAir France
Deal found 4/29$2,146
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/128:00 amITM - IAD
1 stop20h 45mMultiple Airlines
Thu 6/1912:20 pmIAD - ITM
1 stop17h 50mMultiple Airlines
Deal found 4/29$2,261

Cheapflights Fare Finder

Customize your flight search to find flights from Osaka to Dulles Intl 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 30, 2025.
Use the filters below to find and compare flights from Osaka to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Osaka

Fly to

Dulles Intl

Route

Depart

Return

Price

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 6/13

3:10 pm-7:27 am

2 stops29h 17m

Washington, D.C. Dulles Intl

Fri 6/20

6:13 pm-2:00 pm

2 stops30h 47m

$1,307

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 6/12

12:00 pm-3:35 pm

1 stop40h 35m

Washington, D.C. Dulles Intl

Thu 6/19

5:25 pm-10:20 am

1 stop27h 55m

$1,604

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 6/20

4:55 pm-7:35 am

1 stop27h 40m

Washington, D.C. Dulles Intl

Sun 6/29

1:05 pm-2:50 pm

2 stops36h 45m

$1,727

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 6/25

2:35 pm-10:39 pm

2 stops21h 04m

Washington, D.C. Dulles Intl

Mon 6/30

6:27 am-6:40 pm

2 stops23h 13m

$1,779

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 6/12

2:35 pm-7:27 am

2 stops29h 52m

Washington, D.C. Dulles Intl

Thu 6/19

6:30 am-7:45 pm

2 stops24h 15m

$1,964

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 6/25

7:30 am-10:05 am

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 6/30

12:15 pm-6:10 pm

1 stop16h 55m

$1,989

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 6/13

6:55 pm-8:40 am

1 stop26h 45m

Washington, D.C. Dulles Intl

Fri 6/20

9:00 pm-5:25 pm

1 stop31h 25m

$2,038

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Thu 6/12

11:45 pm-8:40 am

1 stop45h 55m

Washington, D.C. Dulles Intl

Thu 6/19

10:55 am-5:15 pm

1 stop41h 20m

$2,052

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 6/13

9:05 am-7:30 pm

1 stop23h 25m

Washington, D.C. Dulles Intl

Fri 6/20

11:00 pm-3:20 pm

1 stop27h 20m

$2,056

OsakaWashington, D.C.

KIX - IAD

KIXIAD

Osaka Kansai Intl

Fri 6/13

6:05 pm-9:41 am

1 stop28h 36m

Washington, D.C. Dulles Intl

Fri 6/20

5:31 pm-4:25 pm

2 stops33h 54m

$2,141

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 31 results
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Compare providers for flights from Osaka to Dulles Intl

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 Osaka to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 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 Osaka-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Osaka-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Osaka-Washington, D.C. Dulles Intl Airport 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 Osaka-Washington, D.C. Dulles Intl Airport 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 Osaka to Dulles Intl

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated April 30, 2025.
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very good
1,459 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Asiana Airlines
8.2
Very good
442 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Emirates
8.0
Very good
3,215 reviews
EVA Air
8.4
Very good
1,186 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Crew

8.6

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from Osaka to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airlines for a one-way flight from Osaka to Washington, D.C. Dulles Intl Airport are EVA Air ($801), Air Canada ($1,142), and Cathay Pacific ($1,167).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Osaka to Dulles Intl 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 Osaka to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Osaka to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Osaka to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
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Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Sterling
Bowie
National Harbor
Oxon Hill

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See prices for flight routes from nearby airports that may be better suited for you.
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