IAD - OSA

$468 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Osaka departing on 11/3. 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

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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Flight Deals

Cheap Flights from Dulles Intl to Osaka (IAD-OSA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 Dulles Intl to Osaka

Mon, Dec 1 - Thu, Dec 18
Logo
9:00 am - 7:25 pmIAD-KIX
20h 25m2 stops
Logo
8:00 am - 8:59 pmKIX-IAD
26h 59m2 stops
$1,038
Find Deal
Tue, Oct 14 - Tue, Oct 21
Logo
9:45 am - 7:30 pmIAD-KIX
20h 45m2 stops
Logo
6:05 pm - 9:38 amKIX-IAD
28h 33m2 stops
$1,042
Find Deal
Tue, Oct 14 - Fri, Nov 14
ANA Logo
12:25 pm - 9:45 pmIAD-UKB
20h 20m1 stop
ANA Logo
7:05 am - 9:10 amUKB-IAD
16h 05m1 stop
$1,082ANA
Find Deal
Tue, Nov 11 - Tue, Nov 25
ANA Logo
11:05 am - 6:10 pmIAD-ITM
17h 05m1 stop
ANA Logo
8:00 am - 9:10 amITM-IAD
15h 10m1 stop
$1,083ANA
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Tue, Jan 20 - Fri, Jan 30
Air Canada Logo
9:00 am - 8:20 pmIAD-ITM
21h 20m2 stops
Air Canada Logo
3:00 pm - 8:29 pmITM-IAD
19h 29m2 stops
$1,093Air Canada
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Mon, Feb 23 - Fri, Feb 27
Air Canada Logo
4:30 pm - 8:20 pmIAD-ITM
37h 50m2 stops
Air Canada Logo
4:00 pm - 8:29 pmITM-IAD
18h 29m2 stops
$1,104Air Canada
Find Deal
Tue, Nov 25 - Thu, Dec 25
United Airlines Logo
10:10 pm - 4:40 pmIAD-KIX
28h 30m1 stop
United Airlines Logo
8:20 am - 3:40 pmKIX-IAD
21h 20m1 stop
$1,113United Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 25
United Airlines Logo
6:00 am - 7:25 pmIAD-KIX
23h 25m2 stops
United Airlines Logo
8:20 am - 3:40 pmKIX-IAD
21h 20m1 stop
$1,119United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Cathay Pacific Logo
5:37 pm - 9:05 pmIAD-KIX
38h 28m2 stops
Cathay Pacific Logo
9:25 am - 10:33 pmKIX-IAD
27h 08m2 stops
$1,170Cathay Pacific
Find Deal
Mon, Nov 17 - Wed, Nov 26
Cathay Pacific Logo
5:27 pm - 5:50 pmIAD-KIX
34h 23m2 stops
Cathay Pacific Logo
7:05 pm - 4:11 pmKIX-IAD
59h 06m2 stops
$1,178Cathay Pacific
Find Deal

Everything you should know

Top airlines
ANA
Cheapest • from $1,082 (round-trip)
ANA
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
July
Cheapest • 72% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$1,038
Typical prices: $1,563-2190
Multiple Airlines
Mon 12/1Thu 12/18
IAD - KIX • 2 stops
Cheapest one-way
$468
Multiple Airlines
Mon 11/3
IAD - KIX • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Osaka!
Booking Insights

KAYAK's insights & trends for Dulles Intl to Osaka flights

Get data-powered insights and trends into flights from Dulles Intl 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. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Osaka is July, where tickets cost $373 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,873 and $1,869 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$468
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 73% lower on average.
Flight from Washington Dulles Airport to Osaka Kansai Intl

When to book flights from Dulles Intl to Osaka

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to Osaka flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Osaka was $468 for a one-way ticket and $1,038 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Osaka?

    A passport is required to fly from Washington Dulles Airport to Osaka.

  • Which airports will I be using when flying from Washington Dulles Airport to Osaka?

    Washington Dulles Airport is served by only 1 airport and there are 2 airports in Osaka. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and you will be arriving in Osaka at one of these airports: Osaka Itami or Osaka Kansai Intl.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Osaka?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Osaka?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Osaka, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Osaka.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Osaka from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl 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 Dulles Intl 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 961 reviews
8.7Crew
8.6Boarding
7.9Entertainment
8.2Comfort
7.7Food
Airline reviews

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

10.0 Excellentmichael, Sep 2025LHR - HND
Read more ANA reviews

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!

Business class on ANA was awesome. There lie flat seats made it easier to sleep on a 12 hour flight. Food was great and service was excellent.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Overall it was good. Making changes to the reservation on ANA’s website was little challenging. Would like to see those features improved in the future.

The flight crew was outstanding. Very cheerful and always respectful. I wish the same could be said about United. The AC wasn't the best on the plane.

The seats are uncomfortable. The flight attendants are not pleasant. They do their job, but not with a ray of sunshine and warmth. The food was awful, not what I would expect from an Asian airline. All of the other Asian airlines I have flown have far better food. The food was on par with United airlines food, which is really bad. Maybe ANA should get out of the alliance with United.

During booking, I selected the seats so that my wife and I would sit next to each other. However, the airline changed our seats at boarding so that we were seated apart. Very disappointing.

Everything you need to know for your flight from Dulles Intl to Osaka

Information on your arrival and departure airports

Washington Dulles Airport (IAD)

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