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 $836. Other airlines that can offer you cheap pricing are Air Canada, from $992, and Japan Airlines, from $1,019. Users have found that Air China is 41% 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 Delta, with whom users have recently found tickets for as low as $601. 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 is the cheapest month to book a flight from Washington, D.C. to Osaka?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Osaka (average of $888). Flying from Washington, D.C. to Osaka in June is currently the most expensive (average of $1,324). 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.

What is the cheapest day to fly from Washington, D.C. to Osaka?

Travelers seeking maximum savings on their Washington, D.C. to Osaka flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 Kansai Intl, Washington, D.C. Dulles Intl - Kobe or Baltimore/Washington - Osaka Kansai Intl as they are the most popular.

What is the cheapest day to fly round-trip from Washington, D.C. to Osaka?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 24% on your flight compared to booking on days when demand is much higher.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 3% on flights from Washington, D.C. to Osaka compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,013. For sooner than that we have options available in the next 3 days from $1,264.

What is the cheapest month to fly from Washington, D.C. to Osaka?

Our data shows that January tends to be the cheapest month to fly to Osaka from Washington, D.C.. Users have commonly found prices around $1,431 for the month, but tickets can be as low as $939. Due to multiple factors, prepare for potentially higher prices in December.

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.

$484+ Flights from Washington, D.C. to Osaka

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington, D.C. to Osaka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Osaka are usually found in January or October, booked 39 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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

Round-trip from	$836 (oojo)
One-way from	$484 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$1,742

From Washington, D.C. (WAS) to Osaka (OSA)

Search Deals

One-way flight from Washington, D.C. (WAS) to Osaka (OSA)

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($57 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 June 12, 2025.

Tue 10/1411:00 pmIAD - KIX

1 stop24h 40mAir China

Thu 10/232:00 pmKIX - IAD

1 stop42h 30mAir China

Deal found 6/9

$790

Tue 10/146:00 amDCA - KIX

2 stops21h 25mAir Canada

Thu 10/236:05 pmKIX - DCA

2 stops29h 15mAir Canada

Deal found 6/9

$941

Tue 8/196:26 amBWI - KIX

2 stops26h 49mMultiple Airlines

Tue 9/167:35 amKIX - BWI

2 stops26h 27mMultiple Airlines

Deal found 6/11

$963

Sun 8/249:13 amIAD - KIX

2 stops42h 12mAir Canada

Mon 9/86:05 pmKIX - IAD

2 stops28h 33mAir Canada

Deal found 6/11

$999

Wed 8/276:00 amBWI - ITM

2 stops24h 50mJapan Airlines

Wed 9/108:30 amITM - BWI

2 stops22h 21mJapan Airlines

Deal found 6/10

$1,019

Sun 9/286:45 amBWI - KIX

2 stops22h 10mANA

Mon 10/134:50 pmKIX - BWI

1 stop17h 40mANA

Deal found 6/10

$1,057

Sun 8/246:55 pmBWI - KIX

2 stops30h 55mUnited Airlines

Thu 9/114:50 pmKIX - BWI

2 stops28h 16mUnited Airlines

Deal found 6/10

$1,063

Sun 11/1610:56 amBWI - ITM

2 stops19h 39mANA

Sun 11/306:00 pmITM - BWI

2 stops41h 24mANA

Deal found 6/10

$1,067

Sun 9/286:30 amBWI - ITM

2 stops23h 10mAmerican Airlines

Mon 10/132:40 pmITM - BWI

2 stops20h 37mAmerican Airlines

Deal found 6/10

$1,085

Sun 8/2410:51 amBWI - UKB

2 stops21h 54mANA

Tue 9/97:05 amUKB - BWI

2 stops19h 43mANA

Deal found 6/10

$1,086

Wed 7/96:22 pmBWI - UKB

2 stops26h 38mMultiple Airlines

Wed 7/1611:00 amUKB - BWI

2 stops31h 33mMultiple Airlines

Deal found 6/9

$1,113

Wed 7/96:59 amDCA - KIX

2 stops20h 26mMultiple Airlines

Wed 7/166:45 amKIX - DCA

2 stops28h 42mMultiple Airlines

Deal found 6/9

$1,116

Best flights from Washington, D.C. to Osaka
Discover carefully curated flight deals from Washington, D.C. to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 8/1911:00 pmIAD - KIX

1 stop32h 30mAir China

Tue 9/169:05 amKIX - IAD

1 stop23h 25mAir China

Deal found 6/11

$836

Tue 8/196:26 amBWI - KIX

2 stops26h 49mMultiple Airlines

Tue 9/167:35 amKIX - BWI

2 stops26h 27mMultiple Airlines

Deal found 6/11

$963

Tue 8/194:30 pmDCA - KIX

2 stops34h 55mAir Canada

Tue 9/96:05 pmKIX - DCA

2 stops29h 15mAir Canada

Deal found 6/10

$992

Wed 8/276:00 amBWI - ITM

2 stops24h 50mJapan Airlines

Wed 9/108:30 amITM - BWI

2 stops22h 21mJapan Airlines

Deal found 6/10

$1,019

Sun 8/246:55 pmBWI - KIX

2 stops30h 55mUnited Airlines

Thu 9/114:50 pmKIX - BWI

2 stops28h 16mUnited Airlines

Deal found 6/10

$1,063

Sun 8/2410:51 amBWI - UKB

2 stops21h 54mANA

Tue 9/97:05 amUKB - BWI

2 stops19h 43mANA

Deal found 6/10

$1,086

Mon 9/86:41 amBWI - ITM

2 stops22h 59mAmerican Airlines

Sun 9/148:30 amITM - BWI

2 stops22h 20mAmerican Airlines

Deal found 6/9

$1,222

Fri 8/297:45 amDCA - KIX

2 stops24h 15mDelta

Sun 9/712:35 pmKIX - DCA

2 stops24h 01mDelta

Deal found 6/11

$1,238

Tue 8/198:20 amDCA - KIX

2 stops33h 20mCathay Pacific

Tue 9/164:20 pmKIX - DCA

3 stops31h 08mCathay Pacific

Deal found 6/11

$1,292

Tue 8/198:23 pmIAD - KIX

2 stops27h 27mChina Airlines

Tue 9/92:00 pmKIX - IAD

2 stops35h 02mChina Airlines

Deal found 6/10

$1,477

Wed 8/271:30 pmIAD - KIX

1 stop40h 30mTurkish Airlines

Tue 9/910:25 pmKIX - IAD

1 stop34h 20mTurkish Airlines

Deal found 6/10

$1,481

Mon 8/255:40 pmIAD - KIX

1 stop24h 35mLufthansa

Mon 9/89:30 amKIX - IAD

1 stop46h 55mLufthansa

Deal found 6/10

$1,564

Last-minute flights from Washington, D.C. to Osaka
Discover last-minute flight deals from Washington, D.C. to Osaka. Data last updated June 12, 2025 and is based on user searches.

Wed 6/186:51 amBWI - ITM

2 stops21h 14mUnited Airlines

Wed 7/212:00 pmITM - BWI

2 stops22h 42mUnited Airlines

Deal found 6/11

$1,540

Wed 6/186:40 amBWI - UKB

2 stops36h 10mANA

Wed 7/29:15 pmUKB - BWI

2 stops37h 27mANA

Deal found 6/11

$1,556

Wed 6/188:19 pmIAD - KIX

2 stops32h 51mMultiple Airlines

Wed 7/910:00 amKIX - IAD

2 stops33h 50mMultiple Airlines

Deal found 6/10

$1,866

Wed 6/1812:55 pmDCA - KIX

3 stops35h 05mMultiple Airlines

Wed 7/23:20 pmKIX - DCA

3 stops33h 43mMultiple Airlines

Deal found 6/11

$1,913

Wed 6/181:00 pmIAD - KIX

2 stops38h 25mAir Canada

Wed 7/96:05 pmKIX - IAD

1 stop28h 32mAir Canada

Deal found 6/11

$1,974

Wed 6/186:59 amDCA - KIX

2 stops20h 26mAir Canada

Wed 7/26:05 pmKIX - DCA

1 stop36h 57mAir Canada

Deal found 6/11

$2,249

Wed 6/1812:15 pmIAD - UKB

1 stop30h 35mANA

Wed 7/27:05 amUKB - IAD

1 stop16h 00mANA

Deal found 6/11

$2,305

Thu 6/193:05 pmBWI - KIX

2 stops39h 25mUnited Airlines

Sun 6/294:55 pmKIX - BWI

1 stop25h 33mUnited Airlines

Deal found 6/11

$1,572

Thu 6/197:00 pmBWI - ITM

2 stops33h 05mMultiple Airlines

Sun 6/297:30 amITM - BWI

2 stops27h 12mMultiple Airlines

Deal found 6/11

$1,578

Thu 6/192:08 pmBWI - KIX

3 stops29h 12mMultiple Airlines

Sun 6/297:40 amKIX - BWI

2 stops24h 49mMultiple Airlines

Deal found 6/11

$1,827

Thu 6/196:00 amDCA - KIX

2 stops26h 15mCathay Pacific

Sun 6/2910:00 amKIX - DCA

2 stops37h 43mCathay Pacific

Deal found 6/11

$1,859

Thu 6/1911:50 amIAD - KIX

2 stops36h 10mCathay Pacific

Sun 6/296:35 pmKIX - IAD

2 stops49h 15mCathay Pacific

Deal found 6/11

$2,104

One-way flights from Washington, D.C. to Osaka
Search for one-way flight options from Washington, D.C. to Osaka. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Tue 8/56:15 pmBWI - KIX

3 stops38h 35mMultiple Airlines

Deal found 6/12

$484

Wed 8/66:45 pmIAD - KIX

2 stops55h 15mMultiple Airlines

Deal found 6/12

$506

Wed 7/306:45 pmIAD - ITM

3 stops34h 25mMultiple Airlines

Deal found 6/12

$507

Tue 8/58:59 amDCA - KIX

3 stops36h 06mMultiple Airlines

Deal found 6/12

$575

Mon 6/306:35 pmDCA - KIX

2 stops27h 45mDelta

Deal found 6/11

$601

Mon 6/306:20 amIAD - KIX

2 stops25h 40mDelta

Deal found 6/11

$601

Thu 7/179:59 amDCA - ITM

2 stops45h 36mMultiple Airlines

Deal found 6/12

$647

Wed 7/3012:15 pmIAD - ITM

1 stop30h 10mANA

Deal found 6/12

$653

Fri 8/86:42 amBWI - KIX

1 stop19h 08mANA

Deal found 6/12

$656

Mon 8/116:42 amBWI - KIX

1 stop19h 08mUnited Airlines

Deal found 6/12

$658

Wed 8/66:59 amDCA - KIX

2 stops20h 26mAir Canada

Deal found 6/12

$660

Sun 7/276:42 amBWI - ITM

2 stops21h 23mUnited Airlines

Deal found 6/12

$673

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 8/19

11:00 pm-8:30 pm

1 stop32h 30m

Osaka Kansai Intl

Tue 9/16

9:05 am-7:30 pm

1 stop23h 25m

$836

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Tue 8/19

6:26 am-10:15 pm

2 stops26h 49m

Osaka Kansai Intl

Tue 9/16

7:35 am-9:02 pm

2 stops26h 27m

$963

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Tue 8/19

4:30 pm-4:25 pm

2 stops34h 55m

Osaka Kansai Intl

Tue 9/9

6:05 pm-10:20 am

2 stops29h 15m

$992

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 8/24

9:13 am-4:25 pm

2 stops42h 12m

Osaka Kansai Intl

Mon 9/8

6:05 pm-9:38 am

2 stops28h 33m

$999

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Wed 8/27

6:00 am-7:50 pm

2 stops24h 50m

Osaka Itami

Wed 9/10

8:30 am-5:51 pm

2 stops22h 21m

$1,019

BaltimoreOsaka

BWI - KIX

BWIKIX

Baltimore/Washington

Sun 8/24

6:55 pm-2:50 pm

2 stops30h 55m

Osaka Kansai Intl

Thu 9/11

4:50 pm-5:48 am

1 stop25h 58m

$1,063

BaltimoreKobe

BWI - UKB

BWIUKB

Baltimore/Washington

Sun 8/24

10:51 am-9:45 pm

2 stops21h 54m

Kobe

Tue 9/9

7:05 am-1:48 pm

2 stops19h 43m

$1,086

BaltimoreOsaka

BWI - ITM

BWIITM

Baltimore/Washington

Sun 8/24

6:15 am-6:55 pm

2 stops23h 40m

Osaka Itami

Fri 9/12

8:00 am-1:48 pm

2 stops18h 48m

$1,086

BaltimoreKobe

BWI - UKB

BWIUKB

Baltimore/Washington

Wed 7/9

6:22 pm-10:00 am

2 stops26h 38m

Kobe

Wed 7/16

11:00 am-5:33 am

2 stops31h 33m

$1,113

Washington, D.C.Osaka

DCA - KIX

DCAKIX

Washington, D.C. Reagan-National

Wed 7/9

6:59 am-4:25 pm

2 stops20h 26m

Osaka Kansai Intl

Wed 7/16

6:45 am-10:27 pm

2 stops28h 42m

$1,116

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 60 results

...

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Osaka

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Osaka, you should look to book at least 39 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?

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

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

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

See what other customers who have flown with EVA Air, Korean Air and Japan 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.

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,202 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,088 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Japan Airlines

8.3

Very good

1,489 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

China Airlines

8.3

Very good

738 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.3

Very good

882 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

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 $836. Other airlines that can offer you cheap pricing are Air Canada, from $992, and Japan Airlines, from $1,019. Users have found that Air China is 41% 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 Delta, with whom users have recently found tickets for as low as $601. 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 Kansai Intl, Washington, D.C. Dulles Intl - Kobe 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Osaka (average of $888). Flying from Washington, D.C. to Osaka in June is currently the most expensive (average of $1,324). 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

Nara

Nishinomiya

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Osaka

Dulles Intl to Kansai Intl flights

Reagan-National to Kansai Intl flights

Dulles Intl to Itami flights

Reagan-National to Itami flights

Other flights to Osaka

Honolulu to Kansai Intl flights

Los Angeles to Kansai Intl flights

San Francisco to Kansai Intl flights

Osaka Kansai Intl Airport to Tokyo Narita Airport flights

Osaka Kansai Intl Airport to Sapporo Chitose Airport flights

Osaka Kansai Intl Airport to Okinawa flights

Osaka Kansai Intl Airport to Tokyo Narita Airport flights

Osaka Kansai Intl Airport to Shanghai Pu Dong Airport flights

Osaka Kansai Intl Airport to Incheon Intl Airport flights

Kobe to Okinawa flights

Osaka Kansai Intl Airport to Okinawa flights

Osaka Itami Airport to Tokyo Narita Airport flights

Osaka Itami Airport to Tokyo Haneda Airport flights

Osaka Kansai Intl Airport to Tokyo Haneda Airport flights

Osaka Kansai Intl Airport to Incheon Intl Airport flights

Osaka Kansai Intl Airport to Busan flights

Osaka Kansai Intl Airport to Hong Kong flights

Osaka Kansai Intl Airport to Busan flights

Osaka Kansai Intl Airport to Cebu City flights

Osaka Kansai Intl Airport to Seoul Gimpo Intl Airport flights

Osaka Kansai Intl Airport to Tokyo Haneda Airport flights

Top 2 airlines flying from Washington, D.C. to Osaka

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$929	Average$1,020	FlexibilityNo cancel fee	On-time67%
ANA	Cheapest$1,457	Average$1,888	FlexibilityNo cancel fee	On-time80%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$484+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Osaka with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Osaka are usually found in January or October, booked 39 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

Cheapest flights from Washington, D.C. to OsakaExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Osaka that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Osaka

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 June 9, 2025.

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 June 12, 2025.

Rainfall in Osaka by month

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

Temperature in Osaka by month

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

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 June 12, 2025.

See what other customers who have flown with EVA Air, Korean Air and Japan 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.

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?

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

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

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

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

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

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

Traveling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Osaka

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

Top 2 airlines flying from Washington, D.C. to Osaka

100% Free

Book with Flexibility

Travel Smart

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 June 12, 2025.