IAD - OSA

$428 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 4/28. 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
$996
Typical prices: $1,564-$1,629
Delta
Mon 4/27Sun 5/3
IAD - KIX • 1 stop
Cheapest one-way
$428
Multiple Airlines
Tue 4/28
IAD - ITM • 3 stops
Top airlines
Cheapest • from $883 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Osaka. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $796 (round-trip)
Shortest trip • 10h 53m (one-way)
Insights
Insights
Insights
Insights
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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!
Flight Deals
Booking Insights
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, Apr 27 - Sun, May 3
Delta Logo
1:15 pm - 10:40 pm
IAD
-
KIX
20h 25m
1 stop
Delta Logo
2:15 am - 6:08 pm
KIX
-
IAD
28h 53m
2 stops
$996Delta
Thu, Apr 30 - Thu, May 7
Delta Logo
7:00 am - 8:45 pm
IAD
-
KIX
24h 45m
2 stops
Delta Logo
12:35 pm - 12:15 am
KIX
-
IAD
24h 40m
2 stops
$1,000Delta
Sun, May 10 - Mon, May 18
Delta Logo
10:11 am - 10:40 pm
IAD
-
KIX
23h 29m
2 stops
Delta Logo
2:15 am - 4:36 pm
KIX
-
IAD
27h 21m
2 stops
$1,002Delta
Tue, Apr 28 - Tue, May 5
Air Canada Logo
10:08 pm - 4:25 pm
IAD
-
KIX
29h 17m
2 stops
Air Canada Logo
6:00 pm - 11:14 am
KIX
-
IAD
30h 14m
2 stops
$1,009Air Canada
Tue, Apr 28 - Tue, May 5
Air Canada Logo
10:08 pm - 4:25 pm
IAD
-
KIX
29h 17m
2 stops
Air Canada Logo
6:00 pm - 11:14 am
KIX
-
IAD
30h 14m
2 stops
$1,015Air Canada
Sun, May 10 - Sat, May 23
Delta Logo
10:11 am - 10:40 pm
IAD
-
KIX
23h 29m
2 stops
Delta Logo
6:15 pm - 6:48 pm
KIX
-
IAD
37h 33m
2 stops
$1,052Delta
Tue, Apr 14 - Tue, Apr 28
ANA Logo
6:30 am - 2:50 pm
IAD
-
KIX
19h 20m
1 stop
ANA Logo
9:00 pm - 10:05 am
KIX
-
IAD
26h 05m
1 stop
$1,160ANA
Thu, Apr 23 - Wed, May 6
ANA Logo
12:15 pm - 9:45 pm
IAD
-
UKB
20h 30m
1 stop
ANA Logo
7:05 am - 10:05 am
UKB
-
IAD
16h 00m
1 stop
$1,183ANA
Mon, Apr 27 - Sun, May 3
Multiple Airlines Logo
1:15 pm - 8:45 pm
IAD
-
KIX
18h 30m
1 stop
Multiple Airlines Logo
2:15 am - 10:50 am
KIX
-
IAD
21h 35m
1 stop
$1,184Multiple Airlines
Thu, Apr 30 - Thu, May 7
Multiple Airlines Logo
7:10 am - 9:45 pm
IAD
-
UKB
25h 35m
2 stops
Multiple Airlines Logo
6:55 pm - 10:50 am
UKB
-
IAD
28h 55m
1 stop
$1,250Multiple Airlines
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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Osaka departing in April.

Good to know

Low seasonJuly
Cheapest flight$428
Best time to beat the crowds with an average 75% drop in price.
Most popular time to fly and prices are also 75% lower on average.
Flight from Washington Dulles Airport to Osaka Itami

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 $428 for a one-way ticket and $883 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?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport 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 $1,633 and an overall rating of 8.4, ANA is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,771 and an overall rating of 7.4.

  • 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 airlines 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 1129 reviews
8.2Comfort
7.8Food
8.6Boarding
8.0Entertainment
8.7Crew
Airline reviews

Their was $200 charge for 2nd luggage, airplane very new and flight smooth. Flight time seem faster then Asian stoping Korea then china.

10.0 ExcellentZhao, Mar 2026
HNL - NRT
Read more ANA reviews

Their was $200 charge for 2nd luggage, airplane very new and flight smooth. Flight time seem faster then Asian stoping Korea then china.

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

Seat was broken. Check in was not possible until we reached the gate, by then we were separated.

The food was not great; but I don’t expect much from airline food. However, the staff was incredible! I had gotten to the gate when I realized I had left my computer at the security checkpoint! I told a staff member and she said, “well, you will miss this flight if you go back to get it” It was a long way from the gate. I asked if I might get on the next flight. She sent for another staff member, and he took me to the gate desk. He found an open seat, and said,”okay, go run to get your computer, I will get you a new boarding pass.” I rran back, retrieved my computer, and returned to the gate. It was closed, but I found the gate nearby where the next ANA flight was leaving. Another staff member was ready for me, and printed me a new pass, and even made sure I still had an aisle seat that I requested! I got in line and continued my trip. These people are amazing, helpful, and friendly. My trip could have been ruined, or postponed at a great expense, but they saved the day! 5 stars!!!!

Best service! Food was Japanese fine dining and they even sang happy birthday to me since it was my birthday halfway through the flight. Bed was comfortable and cabin was quiet.

I originally thought I was booking with ANA airlines and didn't see "operated by United" until the day of. I even thought the United check-in update was a scam so ended up checking in 3 hours before the flight, causing separate seating and uncomfortable middle seats.

Very disappointing. Our flight was delayed for almost 6 hours with the lost time disrupting our travel plans. United should have known that any delay (approximately and hour) triggered a no-fly/work because according to the FAA they had to many flight hours. After the mechanical delay (approximately an hour) we had to wait for a fresh crew change. Seems to me that United could have anticipated this incident. Again, a very disappointing travel experience.

Excellent crew, food and comfort from LA to Narita. Flight from Narita to Manila was just okay, Food and comfort needs to improve. The business class was not comfortable.

Lots of leg room in premium. Departed exactly on time. Friendly crew.

My connecting flight from CTS to Narita was late and I missed my connection. A very nice agent met me when I deplaned and ensured that I caught the next flight back to SFO. Fantastic customer service :)

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

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

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

Information on your arrival and departure airports