WAS - OSA

$502 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 8/30. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$935
United Airlines
Tue 9/22Wed 9/30
BWI - KIX • 2 stops
Cheapest one-way
$502
Multiple Airlines
Sun 8/30
IAD - KIX • 3 stops
Top airlines
Cheapest • from $935 (round-trip)
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Osaka. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $796 (round-trip)
Shortest trip • 17h 05m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 78% price drop
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

Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
5:35 pm - 2:50 pm
BWI
-
KIX
32h 15m
2 stops
United Airlines Logo
4:55 pm - 6:56 am
KIX
-
BWI
27h 01m
2 stops
$935United Airlines
Sun, Sep 20 - Wed, Sep 30
ANA Logo
8:00 am - 6:55 pm
BWI
-
ITM
21h 55m
2 stops
ANA Logo
12:50 pm - 9:02 pm
ITM
-
BWI
21h 12m
2 stops
$952ANA
Tue, Sep 22 - Wed, Sep 30
ANA Logo
8:00 am - 2:50 pm
BWI
-
KIX
41h 50m
1 stop
ANA Logo
7:00 am - 9:02 pm
KIX
-
BWI
27h 02m
2 stops
$954ANA
Thu, Sep 3 - Fri, Sep 11
United Airlines Logo
5:40 pm - 2:50 pm
BWI
-
KIX
32h 10m
2 stops
United Airlines Logo
4:55 pm - 7:15 am
KIX
-
BWI
27h 20m
1 stop
$1,035United Airlines
Mon, Sep 28 - Sun, Oct 4
EVA Air Logo
1:15 am - 12:10 pm
IAD
-
KIX
21h 55m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$1,144EVA Air
Mon, Sep 28 - Sun, Oct 4
EVA Air Logo
1:15 am - 12:10 pm
IAD
-
KIX
21h 55m
1 stop
EVA Air Logo
6:30 pm - 10:00 pm
KIX
-
IAD
40h 30m
1 stop
$1,147EVA Air
Sun, Aug 16 - Tue, Sep 1
Air Canada Logo
6:59 am - 4:25 pm
DCA
-
KIX
20h 26m
2 stops
Air Canada Logo
6:00 pm - 10:18 am
KIX
-
DCA
29h 18m
2 stops
$1,221Air Canada
Mon, Aug 24 - Mon, Aug 31
Air Canada Logo
8:29 am - 4:25 pm
IAD
-
KIX
18h 56m
1 stop
Air Canada Logo
6:00 pm - 6:30 am
KIX
-
IAD
25h 30m
1 stop
$1,234Air Canada
Tue, Sep 22 - Thu, Oct 8
Japan Airlines Logo
11:31 am - 8:30 pm
DCA
-
ITM
19h 59m
2 stops
Japan Airlines Logo
10:20 am - 4:13 pm
ITM
-
DCA
18h 53m
2 stops
$1,365Japan Airlines
Tue, Aug 4 - Tue, Aug 18
Japan Airlines Logo
7:35 am - 6:40 pm
DCA
-
ITM
22h 05m
2 stops
Japan Airlines Logo
2:30 pm - 10:42 pm
ITM
-
DCA
21h 12m
2 stops
$1,366Japan Airlines
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.

How much is a round-trip flight from Washington, D.C. to Osaka?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Osaka departing in September.

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 October, where tickets cost $178 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $1,251 and $1,236 respectively.

Good to know

Low seasonFebruary
Cheapest flight$502
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Washington Dulles Airport to Osaka Kansai Intl

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 5 days, the lowest price for a flight from Washington, D.C. to Osaka was $502 for a one-way ticket and $935 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 Baltimore/Washington Airport to Kobe 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Osaka are ANA and United Airlines. With an average price for the route of $1,525 and an overall rating of 8.3, ANA is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,507 and an overall rating of 7.4.

  • 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 3 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.
8.3
ANAOverall score based on 1258 reviews
7.9Entertainment
8.7Crew
8.2Comfort
7.7Food
8.5Boarding
Airline reviews

12 of the 14 hours were in the dark, all during daylight. Didn’t use my light because it disturbed other people it was illuminating. 14 hours sitting upright in a cramped space was horrible.

2.0 MediocreAnonymous, Jun 2026
IAD - HND
Read more ANA reviews

12 of the 14 hours were in the dark, all during daylight. Didn’t use my light because it disturbed other people it was illuminating. 14 hours sitting upright in a cramped space was horrible.

The food was terrible and totally inedible. If you are flying with ANA/United bring your own food it was a long flight to be hingry

Delays, plane transfer due to malfunction, no entertainment, limited beverage service.

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

Due to turbulence there was no inflight service, which is very understandable, The flight is very short, and safety is more important. There was a bit of a delay with take off, but was to be expected with the rain.

Seats had more space than expected. No recline, that is good.

We purchased premium economy seats 9 months ago and got bumped to economy when we tried to board the plane. It was a huge fiasco while they struggled to find us seats. I tried reaching out to Kayak to see how we can get refunded for the extra money we spent on premium but have heard nothing back. It was a 14 hour flight and were disappointed that we lost our seats after selecting them 9 months ago.

Excellent. All the ticket prices have gone up so much. With only economy as the option, I thought I better pay for a good airline and I am glad I took ANA. The only thing is the long layover at Hanaeda enroute to Singapore. Any chance to bring back the service to land at Narita instead for the transit and a shorter layover will be fantastic. I am a fan of ANA.

The flight was canceled due to a mechanical problem. The rebooked flights were snot good. Many complexities. Will not use a third party booking again.

Our flight that was before this one was delayed, and I appreciate that this airline sent a very nice flight attendant to pick us up at the Chicago airport and walked us to the gate. They waited for us, so we didn't miss the flight. That was amazing and outstanding customer service! We appreciate you so much!!

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United Airlines changed my flight 5 hours before I arrived at the airport. This messed up my entire day that I arrived in Japan.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

Flight home was delayed multiple times, did not get home until 2am

I checked a bag and there was only one agent to assist all customers with any issues.

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

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

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.

The flight was delayed at the last moment quoting an absurd weather reason. This delay led to an issue with my connecting flight. I was made to run (literary) from this flight to the next one ( as they preponed departure. I was still in my DCA to YYZ flight when the boarding started for the next connecting flight. After my sprint to get the connecting flight, found that no place for my carry on. Had to sit for 3 hours with my back-pack on my lap , it was the most uncomfortable and inconvenient journey with little to no empathy shown by cabin crew in both flights. Another poor show from Air Canada!! Cant help because of lack of options !!

Made me check my carry on despite there being dozens of empty bins when I boarded which significantly inconvenienced me.

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.