$613 Cheap Flights from Buffalo (BUF) to Osaka (KIX)

View $613 flight on Wed, Sep 16, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)

Cheap Flights from Buffalo to Osaka (BUF-KIX)

Prices were available within the past 7 days and start at $613 for one-way flights and $1,215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sun, Sep 13 - Sun, Sep 20
BUF
Buffalo
KIX
Osaka
$1,215 Roundtrip, found 1 day ago
$1,215
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sun, Sep 13 from Buffalo to Osaka, returning Sun, Sep 20, priced at $1,215 found 1 day ago
JetBlue Airways
Tue, Sep 1 - Fri, Sep 18
BUF
Buffalo
KIX
Osaka
$1,250 Roundtrip, found 3 days ago
$1,250
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Sep 1 from Buffalo to Osaka, returning Fri, Sep 18, priced at $1,250 found 3 days ago
JetBlue Airways
Tue, Sep 1 - Tue, Sep 8
BUF
Buffalo
KIX
Osaka
$1,255 Roundtrip, found 2 days ago
$1,255
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Sep 1 from Buffalo to Osaka, returning Tue, Sep 8, priced at $1,255 found 2 days ago
Etihad Airways
Mon, May 4 - Mon, May 25
BUF
Buffalo
KIX
Osaka
$1,323 Roundtrip, found 4 days ago
$1,323
Roundtrip
found 4 days ago
Select Etihad Airways flight, departing Mon, May 4 from Buffalo to Osaka, returning Mon, May 25, priced at $1,323 found 4 days ago
JetBlue Airways
Tue, Sep 1 - Fri, Sep 18
BUF
Buffalo
KIX
Osaka
$1,326 Roundtrip, found 3 days ago
$1,326
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Sep 1 from Buffalo to Osaka, returning Fri, Sep 18, priced at $1,326 found 3 days ago
JetBlue Airways
Tue, Sep 1 - Tue, Sep 8
BUF
Buffalo
KIX
Osaka
$1,333 Roundtrip, found 2 days ago
$1,333
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Sep 1 from Buffalo to Osaka, returning Tue, Sep 8, priced at $1,333 found 2 days ago
JetBlue Airways
Tue, Apr 28 - Thu, May 7
BUF
Buffalo
KIX
Osaka
$1,375 Roundtrip, found 6 days ago
$1,375
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Tue, Apr 28 from Buffalo to Osaka, returning Thu, May 7, priced at $1,375 found 6 days ago
Korean Air
Mon, Apr 27 - Fri, May 22
BUF
Buffalo
KIX
Osaka
$1,378 Roundtrip, found 6 days ago
$1,378
Roundtrip
found 6 days ago
Select Korean Air flight, departing Mon, Apr 27 from Buffalo to Osaka, returning Fri, May 22, priced at $1,378 found 6 days ago
All Nippon Airways
Mon, Apr 27 - Fri, May 22
BUF
Buffalo
KIX
Osaka
$1,383 Roundtrip, found 6 days ago
$1,383
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Mon, Apr 27 from Buffalo to Osaka, returning Fri, May 22, priced at $1,383 found 6 days ago
United
Tue, Apr 21 - Tue, Apr 28
BUF
Buffalo
KIX
Osaka
$1,482 Roundtrip, found 5 days ago
$1,482
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 21 from Buffalo to Osaka, returning Tue, Apr 28, priced at $1,482 found 5 days ago

Alternative airports near Osaka

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kansai Intl. KIX. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $1,378
KIX
Kansai Intl.
Cheapest
Average driving time to city center40 min
Flights from $1,378

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) cost?
You can find cheap one-way flights from $613 and cheap return flights from $1,215 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) with Expedia. One-way flights usually range from $704 to $5047, and return flights typically cost between $1357 and $11922. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
The cheapest month to fly from BUF to KIX is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
Enter BUF to KIX and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
Air France is one of the cheapest airlines offering connecting flights from Buffalo Niagara Intl. (BUF) to Kansai Intl. (KIX) with a layover in Detroit Metropolitan Wayne County (DTW), starting from around $2,251 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
The earliest flight from Buffalo (BUF) to Osaka (KIX) generally departs at around 5:05 AM, operated by American Airlines and Japan Airlines. This flight is part of a seasonal service active in July, allowing you to make the most of your travel day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Kansai Intl. (KIX) are in the early morning, from 6am to 9am. About 52% of passengers prefer this time window. Many major carriers, including United Airlines, All Nippon Airways and JetBlue Airways, offer flights during this window. This timing works well because it allows you to start your day early and maximize your time upon arrival in Osaka.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
A flight from BUF to KIX with a layover takes around 24 hours 50 minutes, with the route covering approximately 6,677 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
Select the "Business class" and "First class" filters when looking for BUF to KIX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Osaka from Buffalo Niagara Intl. (BUF)?
From Buffalo Niagara Intl. (BUF), you can fly into Kansai Intl. (KIX) and Itami (ITM) in Osaka. Some flights may connect through major hubs like O'Hare Intl. (ORD), John F. Kennedy Intl. (JFK), Liberty Intl. (EWR) before reaching Osaka. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) Osaka Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Osaka (KIX-Kansai Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Kansai Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, British Airways, Delta, Etihad Airways, Japan Airlines, KLM, Korean Air, Qatar Airways, Turkish Airlines, United
Roundtrip price
$1,214
Distance
6676 mi

Book with confidence

Buffalo to Osaka Flights

The cheapest times to fly from Buffalo to Osaka

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Osaka are during the month of September. You can find some of the cheapest flights from Buffalo to Osaka with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Osaka

Sunday is one of the best days to book for cheap flights from Buffalo to Osaka: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buffalo to Osaka

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Osaka in 2026. You can also book with separate airlines for your outbound and return journeys, from $613 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Osaka flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Osaka airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Buffalo to Osaka Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia