WAS - OSA

$289 Find Cheap Flights from Washington, D.C. to Osaka

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Osaka departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Osaka

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Osaka, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Osaka, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$824
Multiple Airlines
ter 1/13ter 1/20
BWI - KIX • 3 stops
Cheapest one-way
$304
Multiple Airlines
qua 1/14
DCA - KIX • 3 stops
Top airlines
Alaska Airlines
Cheapest • from $975 (round-trip)
ANA
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 15% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Osaka!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Osaka (WAS-OSA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Osaka that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Osaka

ter, jan 13 - ter, jan 20
Multiple Airlines Logo
8:26 pm - 8:35 pmBWI-KIX
34h 09m3 stops
Multiple Airlines Logo
7:50 am - 7:19 pmKIX-BWI
25h 29m2 stops
$824Multiple Airlines
Find Deal
ter, jan 13 - ter, jan 20
Multiple Airlines Logo
6:45 am - 6:50 pmBWI-KIX
22h 05m2 stops
Multiple Airlines Logo
7:50 am - 7:19 pmKIX-BWI
25h 29m2 stops
$959Multiple Airlines
Find Deal
ter, jan 13 - ter, jan 20
ANA Logo
10:05 am - 7:30 amBWI-ITM
31h 25m2 stops
ANA Logo
7:30 am - 2:11 pmITM-BWI
20h 41m2 stops
$978ANA
Find Deal
seg, jan 12 - ter, jan 20
ANA Logo
10:05 am - 9:50 pmBWI-KIX
21h 45m2 stops
ANA Logo
8:20 am - 9:41 pmKIX-BWI
27h 21m2 stops
$984ANA
Find Deal
seg, dez 1 - ter, dez 16
United Airlines Logo
6:35 pm - 4:40 pmBWI-KIX
32h 05m1 stop
United Airlines Logo
6:35 pm - 11:00 pmKIX-BWI
18h 25m2 stops
$993United Airlines
Find Deal
seg, jan 12 - ter, jan 20
United Airlines Logo
6:34 pm - 4:40 pmBWI-KIX
32h 06m1 stop
United Airlines Logo
6:35 pm - 3:04 pmKIX-BWI
34h 29m2 stops
$1,007United Airlines
Find Deal
qua, dez 3 - sáb, dez 13
Japan Airlines Logo
7:48 am - 7:55 pmBWI-ITM
22h 07m2 stops
Japan Airlines Logo
8:30 am - 6:59 pmITM-BWI
24h 29m2 stops
$1,043Japan Airlines
Find Deal
qua, dez 3 - ter, dez 9
Japan Airlines Logo
7:48 am - 7:55 pmBWI-ITM
22h 07m2 stops
Japan Airlines Logo
2:40 pm - 10:13 pmITM-BWI
21h 33m2 stops
$1,102Japan Airlines
Find Deal
sex, jan 30 - sex, fev 13
Air Canada Logo
9:40 am - 8:20 pmDCA-ITM
20h 40m2 stops
Air Canada Logo
3:00 pm - 10:35 pmITM-DCA
21h 35m2 stops
$1,104Air Canada
Find Deal
sex, jan 30 - sex, fev 13
Air Canada Logo
9:00 am - 7:10 pmIAD-ITM
20h 10m2 stops
Air Canada Logo
3:00 pm - 8:30 pmITM-IAD
19h 30m2 stops
$1,104Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Osaka flights

Get data-powered insights and trends into flights from Washington, D.C. to Osaka to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Osaka, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Osaka is September, where tickets cost $1,152 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,732 and $1,588 respectively.

Good to know

Low seasonJanuary
Cheapest flight$304
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Reagan Washington National Airport to Osaka

When to book flights from Washington, D.C. to Osaka

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Osaka based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Osaka

  • What is the cheapest flight from Washington, D.C. to Osaka?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Osaka was $304 for a one-way ticket and $824 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Osaka?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Osaka?

    There are 2 airports in Washington, D.C. (Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl) and 2 airports in Osaka (Osaka Itami and Osaka Kansai Intl). The cheapest flights are generally found on the Washington Dulles Airport to Osaka Kansai Intl flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Osaka?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Osaka?

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and Osaka.

  • Which is the best airline for flights from Washington, D.C. to Osaka, ANA or Japan Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Osaka are ANA and Japan Airlines. With an average price for the route of $1,496 and an overall rating of 8.4, ANA is the most popular choice. Japan Airlines is also a great choice for the route, with an average price of $1,226 and an overall rating of 8.3.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Osaka?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Osaka.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Osaka?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Osaka?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Osaka with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Osaka?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Osaka from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Washington, D.C. to Osaka

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Osaka. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Osaka? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
ANAOverall score based on 1002 reviews
8.6Boarding
7.7Food
8.2Comfort
7.9Entertainment
8.7Crew
Airline reviews

Great experienced staff and very pleasant compared to some other international airlines

10.0 ExcellentAshok, Nov 2025OKA - HND
Read more ANA reviews

Great experienced staff and very pleasant compared to some other international airlines

Flight was good and comfortable, even for long haul economy. No complaints.

Check in was fast, lounge was good. Special section for ANA passengers in the Plaza Premium lounge. Boarding was organized and quick. Crew was very nice. They ran out of the Japanese meal so they asked me to switch to the international meal. Beef was room temperature and not hot. It tasted ok. Japanese meal was served hot. Movies were not great. Chair was very old and recline was not good. TV monitor was very old and not HD. Plane layout in business was 2-2-2. Should switch to the 1-2-1 layout for more privacy. Overall flight was average to good. Service was good but hard product should be updated to compete against much nicer Taiwanese airlines.

They lost my luggage on the inbound flight and then lost it again on this flight. I called online travel agent to change earlier flight to get a longer layover in Vancouver but ANA denied it

Suite lounge in Honolulu is very exclusive and boarding from the lounge into the plane is unique. First suites were huge and comfortable. Japanese meal is like a high end omakase meal. All the staff were very kind and provided sophisticated service. Fast Track upon landing was appreciated but not needed this time because immigration was so empty and easy.

I like the service very much. The food just okay but maybe different culture who like, who don't like.

Everything was excellent. Only the fish entree in the Japanese meal was overcooked and quite dry but everything else was great

Great first time experience on this airline. Very professional staff and great service.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

I was able to change my flight last minute. It was more expensive, but that was my fault. Thank you for allowing me to fly!

I felt that the customer service improved compared to a several years ago.

I traveled business class from Lax to Narita flight Jl61. The crew was attentive and polite. Food was good quality and service was as it should be. Narita to Bengaluru Jl753was another story in business class. The cabin was darkened for the 9hr:30min flight, food was mediocre, service was below standard and crew can't speak English to save their lives. When you ask for noodles soup from Ala carte they gave cup of noodles while Lax to Narita i was served the best Ramen noodles in a big bowl. Why the disparity on this leg of the journey.....or is it because there were mostly Indian passengers and it really did not matter to Jal to bother as its a poor country and Indians refrain from speaking up? A good airline but differentiation like this brings their reputation and business down.

Japan Airlines was excellent as usual once on the plane. Cabin crew was wonderful as usual. Boarding was solid on the Honolulu leg. For Thai Airways the boarding was less organized. I was in an earlier group but they weren’t clear with the numbers or instructions. Flight crew from Japan to Thailand was very good.

Terrible. Our flight was delayed by 15 hours. We lost a full day of our vacation.

highly recommend for trip to japan only reason why i gave good not excellent is because their selection of movies and tv shows in English is more limited .

We asked for Hindu vegetarian meal in advance and the quality of the food was horrendous. Never flying JAL again!

Japan airline is excellent service .I recommend to Kayak and Japan airline to Frend.

Overall a great experience. One complain was the vegetarian food that my wife had which was mostly boiled vegetables with not much flavor.

Very accommodating and kind airline crews. The plane is also big which makes the passengers more comfortable and relax

I actually didn’t make it onto the flight. I spent quite a few hours trying to rebook the flight just to get screwed out of $5000. Fun!

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Pitch was very small. Knees were on the seat back in front of me.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Snacks were just placed and many people were hungry and unaware they were available. Ran out of water bottles. Attendants not available. Missed entire meal.

The cabin crew was professional and there were plenty of movie choices, but the food was a bit sub-standard.

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

The flight was delayed an hour, but not because of Air Canada. The crew was polite, professional, and competent. The food was above average for Air Canada, but just fine. The stand out for me in the 10 hour flight was the entertainment package. The best of any airline I’ve experienced so far. Looking forward to my return flight to finish some more of the shows I was watching.

Very good!👍!especially the typhoon coming, the speaking Chinese language service is excellent 👍!

Not to out myself as both a child at heart and kind of a terrible person, but the Pokémon safety video was the first time I watched an airplane safety video in like a decade. It was ADORABLE!! A great way to encourage attention from young and old alike.

Seamless! Long but the seat back entertainment kept us all busy the whole time! Meals were excellent! Crew fantastic! Very attentive!

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

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

Cabin class types available on flights from Washington, D.C. to Osaka

Cabin classes available on flights from Washington, D.C. to Osaka. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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