IAD - OSA

$413 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 9/22. 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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Flights 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

Tue, Oct 14 - Thu, Oct 23
Air China Logo
11:00 pm - 12:40 pmIAD-KIX
24h 40m1 stop
Air China Logo
2:00 pm - 7:30 pmKIX-IAD
42h 30m1 stop
$790Air China
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Tue, Aug 19 - Tue, Sep 16
Air China Logo
11:00 pm - 8:30 pmIAD-KIX
32h 30m1 stop
Air China Logo
9:05 am - 7:30 pmKIX-IAD
23h 25m1 stop
$836Air China
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Sun, Aug 24 - Mon, Sep 8
Air Canada Logo
9:13 am - 4:25 pmIAD-KIX
42h 12m2 stops
Air Canada Logo
6:05 pm - 9:38 amKIX-IAD
28h 33m2 stops
$999Air Canada
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Tue, Aug 19 - Tue, Sep 16
Air Canada Logo
10:20 am - 4:25 pmIAD-KIX
17h 05m1 stop
Air Canada Logo
6:05 pm - 9:38 amKIX-IAD
28h 33m2 stops
$1,005Air Canada
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Sat, Sep 13 - Tue, Sep 23
Delta Logo
7:20 am - 9:00 pmIAD-KIX
24h 40m2 stops
Delta Logo
9:05 am - 9:11 amKIX-IAD
37h 06m2 stops
$1,228Delta
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Fri, Aug 29 - Sun, Sep 7
Delta Logo
7:30 am - 9:00 pmIAD-KIX
24h 30m2 stops
Delta Logo
12:35 pm - 11:40 pmKIX-IAD
24h 05m2 stops
$1,238Delta
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Sat, Sep 6 - Mon, Dec 22
Cathay Pacific Logo
5:40 pm - 2:55 pmIAD-KIX
32h 15m3 stops
Cathay Pacific Logo
9:25 am - 10:14 pmKIX-IAD
26h 49m2 stops
$1,357Cathay Pacific
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Sat, Nov 1 - Sat, Nov 8
Cathay Pacific Logo
5:31 pm - 2:55 pmIAD-KIX
32h 24m3 stops
Cathay Pacific Logo
9:50 am - 10:18 pmKIX-IAD
26h 28m2 stops
$1,407Cathay Pacific
Find Deal
Sun, Aug 24 - Mon, Sep 8
ANA Logo
12:20 pm - 6:10 pmIAD-ITM
16h 50m1 stop
ANA Logo
8:20 pm - 10:05 amITM-IAD
26h 45m1 stop
$1,677ANA
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Tue, Aug 26 - Wed, Sep 10
ANA Logo
12:20 pm - 6:10 pmIAD-ITM
16h 50m1 stop
ANA Logo
7:30 am - 10:05 amITM-IAD
15h 35m1 stop
$1,680ANA
Find Deal
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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 January, where tickets cost $867 (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 $1,859 respectively.

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Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$413
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 3% 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 $413 for a one-way ticket and $790 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?

    SkyTeam, oneworld, and Star Alliance 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.

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.
8.3
ANAOverall score based on 882 reviews
7.9Entertainment
8.5Boarding
7.7Food
8.7Crew
8.2Comfort
Airline reviews

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.

8.0 ExcellentAnonymous, Jun 2025NRT - ITM
Read more ANA reviews

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.

The crew was amazing, really friendly and efficient. One of the best flights I have ever been on. They made the long flight comfortable and I noticed there were two birthdays on the flight. They gave to customers birthday cards and wished them a happy birthday. That was very nice to see.

Everything was great. Wifi was down,but that didn't matter to me.

The staff are very kind ,friendly and helpful .This is my first time flying with ANA and surely will fly again.

The best best best flight experience I have ever had. And I fly A LOT. THANK YOU, ANA!!!

My wife and I liked almost everything about ANA except for the economy seat space and the cold breakfast (croissant which seemed to just come out of the fridge)

Excellent service and comfortable seats. Friendly and helpful staff. No food for a 3hr flight over lunch time which was surprising (or is that a feature of domestic flights in Japan?)

When booking the flight i picked it because it said flying with ana even on our e-ticket as well but I showed up to the airport and I flew with united. I have flew with both airlines before and I prefer ana for the food quality and comfortable. So I was disappointed in that outcome and felt the food gave me minor ibs. The whole thing was missing leading with not getting what I thought I was paying for. Felt a bait and switched. Do not have confidence in using this app in the future trips

This was a large plane with an upper deck. It seems like business was upstairs. If it was a US airline then I would say I sat in economy plus, but I think it was just economy. Though since ANA would not allow me to choose seats for the price it may have been plus. Lots of movies to choose from, and good service.

This was the best airline I’ve ever taken. The staff are amazing. The food was great. The pilot was phenomenal. I would highly recommend this airline.

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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