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$427+ Cheap flights from Washington, D.C. (WAS) 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — OSA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Washington, D.C. to Osaka are usually found in January or November, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 January 21, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$912
(American Airlines)

One-way from

$427
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$999
Provider with most accurate pricing for Washington, D.C. (WAS)-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Osaka (OSA) flights.
Search Deals
From Washington, D.C. (WAS) to Osaka (OSA)
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One-way flight from Washington, D.C. (WAS) to Osaka (OSA)
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Washington, D.C. to Osaka

Cheapest flights from Washington, D.C. to Osaka
Explore the most affordable flight options available from Washington, D.C. to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/196:13 amBWI - KIX
2 stops22h 37mAmerican Airlines
Wed 2/265:50 pmKIX - BWI
2 stops20h 28mAmerican Airlines
Deal found 1/21$912
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/186:30 amBWI - UKB
2 stops35h 30mANA
Mon 2/249:05 pmUKB - BWI
2 stops38h 07mANA
Deal found 1/20$923
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/46:05 amBWI - KIX
1 stop20h 30mUnited Airlines
Fri 2/76:30 pmKIX - BWI
1 stop26h 32mUnited Airlines
Deal found 1/21$925
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:09 amBWI - ITM
2 stops23h 26mJapan Airlines
Fri 9/198:30 amITM - BWI
2 stops26h 10mJapan Airlines
Deal found 1/21$950
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/186:15 amBWI - KIX
1 stop20h 20mANA
Mon 2/247:10 amKIX - BWI
2 stops28h 02mANA
Deal found 1/20$973
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/187:34 amBWI - ITM
2 stops21h 06mAmerican Airlines
Mon 2/247:25 amITM - BWI
2 stops24h 16mAmerican Airlines
Deal found 1/20$973
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1810:51 amBWI - KIX
2 stops21h 24mMultiple Airlines
Mon 2/246:30 pmKIX - BWI
2 stops26h 21mMultiple Airlines
Deal found 1/20$985
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Sun 4/68:40 pmDCA - KIX
2 stops30h 45mAir Canada
Tue 4/156:05 pmKIX - DCA
2 stops29h 14mAir Canada
Deal found 1/20$1,004
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:50 pmBWI - ITM
2 stops58h 15mUnited Airlines
Fri 5/212:00 pmITM - BWI
2 stops30h 23mUnited Airlines
Deal found 1/20$1,007
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:09 amBWI - KIX
2 stops27h 01mJapan Airlines
Fri 9/196:40 amKIX - BWI
2 stops28h 00mJapan Airlines
Deal found 1/21$1,013
This StudentUniverse deal was found by Cheapflights users on 1/20. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2110:05 amBWI - ITM
2 stops20h 30mANA
Fri 1/2412:00 pmITM - BWI
2 stops22h 48mANA
Deal found 1/20$1,053
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/48:24 amIAD - ITM
2 stops21h 26mMultiple Airlines
Tue 3/114:00 pmITM - IAD
2 stops18h 23mMultiple Airlines
Deal found 1/21$1,107

Find flights from Washington, D.C. to Osaka within your budget

Customize your flight search to find flights from Washington, D.C. 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Wed 2/19

6:13 am-6:50 pm

2 stops22h 37m

Osaka Kansai Intl

Wed 2/26

5:50 pm-12:18 am

2 stops20h 28m

$912

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Tue 2/4

7:30 am-5:35 pm

2 stops20h 05m

Osaka Itami

Fri 2/7

3:25 pm-11:27 pm

2 stops22h 02m

$915

BaltimoreKobe

BWI - UKB

BWIUKB

Baltimore/Washington

Tue 2/18

6:30 am-8:00 am

2 stops35h 30m

Kobe

Mon 2/24

9:05 pm-9:12 pm

2 stops38h 07m

$923

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 2/4

6:05 am-4:35 pm

1 stop20h 30m

Osaka Kansai Intl

Fri 2/7

6:30 pm-7:02 am

1 stop26h 32m

$925

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 2/18

6:15 am-4:35 pm

1 stop20h 20m

Osaka Kansai Intl

Mon 2/24

7:10 am-9:12 pm

2 stops28h 02m

$973

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 2/18

10:51 am-10:15 pm

2 stops21h 24m

Osaka Kansai Intl

Mon 2/24

6:30 pm-6:51 am

2 stops26h 21m

$985

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Wed 4/16

5:50 pm-5:05 pm

2 stops58h 15m

Osaka Itami

Fri 5/2

12:00 pm-5:23 am

2 stops30h 23m

$1,007

Washington, D.C.Osaka

DCA - ITM

DCAITM

Washington, D.C. Reagan-National

Tue 3/4

6:00 am-7:50 pm

2 stops23h 50m

Osaka Itami

Tue 3/11

3:00 pm-10:37 pm

2 stops20h 37m

$1,108

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Mon 3/31

10:50 am-7:30 am

2 stops31h 40m

Osaka Itami

Tue 4/8

9:00 am-9:42 pm

2 stops25h 42m

$1,129

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Mon 4/7

8:40 pm-4:25 pm

2 stops54h 45m

Osaka Kansai Intl

Mon 4/14

6:05 pm-8:53 am

2 stops27h 48m

$1,144

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Osaka in January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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.-Osaka flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Osaka flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Osaka flights, Cheapflights users trust AranGrant the most. AranGrant 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.-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 Washington, D.C. to Osaka

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

Travel insights for flights from Washington, D.C. to Osaka

Get recent, data-driven insights about flights from Washington, D.C. to Osaka including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Osaka?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Osaka. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Osaka, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest time of day to fly from WAS to OSA?

Find hourly flight availability from Washington, D.C. 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 January 21, 2025.

It’s typically best to fly out from Washington, D.C. to Osaka in the afternoon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Osaka by month

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

In terms of precipitation, rainfall in Osaka ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka when rainfall is around 1.6 in.

Temperature in Osaka by month

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

If weather is an important factor for your trip to Osaka, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 January 21, 2025.
See what other customers who have flown with American Airlines, ANA and United Airlines from Washington, D.C. to Osaka have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,360 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Overall

8.5

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Osaka. 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 flying from Washington, D.C. to Osaka round-trip?

    Cheapflights users have booked flights from Washington, D.C. to Osaka round-trip from $912. Other airlines that can offer you cheap pricing are ANA, from $918, and United Airlines, from $925. Users have found that American Airlines is 35% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $595. However, be on the lookout for offers from ANA and United Airlines, as they are both options that can get you from Washington, D.C. to Osaka for a low price.

  • What are the most popular routes from Washington, D.C. to Osaka?

    When deciding which route to take from Washington, D.C. to Osaka consider Washington, D.C. Dulles Intl - Osaka Itami, Washington, D.C. Dulles Intl - Osaka Kansai Intl or Baltimore/Washington - Osaka Kansai Intl as they are the most popular.

  • Can I find deals for flights from Washington, D.C. to Osaka that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Osaka?

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

  • Can I find deals for business class flights from Washington, D.C. to Osaka?

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Osaka (average of $950). Flying from Washington, D.C. to Osaka in December is currently the most expensive (average of $1,366). 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

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Book flights to Washington, D.C. if you plan to visit one of these locations
Nara
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Alternative routes for Washington, D.C. to Osaka

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

Top 3 airlines flying from Washington, D.C. to Osaka

Discover the top 3 airlines that operate flights from Washington, D.C. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$929Average$1,020FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,216Average$1,470FlexibilityNo cancel feeOn-time71%
ANACheapest$1,423Average$1,764FlexibilityNo cancel feeOn-time80%
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