$579 Cheap Flights from Buffalo (BUF) to Osaka (KIX)

View $579 flight on Tue, Nov 25, 2025Opens in a new window

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

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Cheap Flights from Buffalo to Osaka (BUF-KIX)

Prices were available within the past 7 days and start at $579 for one-way flights and $1,007 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Dec 30 - Thu, Jan 15
BUF
Buffalo
KIX
Osaka
$1,007 Roundtrip, found 1 day ago
$1,007
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 30 from Buffalo to Osaka, returning Thu, Jan 15, priced at $1,007 found 1 day ago
United
Tue, Dec 30 - Fri, Jan 16
BUF
Buffalo
KIX
Osaka
$1,007 Roundtrip, found 4 days ago
$1,007
Roundtrip
found 4 days ago
Select United flight, departing Tue, Dec 30 from Buffalo to Osaka, returning Fri, Jan 16, priced at $1,007 found 4 days ago
United
Wed, Jan 14 - Thu, Jan 22
BUF
Buffalo
KIX
Osaka
$1,012 Roundtrip, found 2 days ago
$1,012
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 14 from Buffalo to Osaka, returning Thu, Jan 22, priced at $1,012 found 2 days ago
United
Tue, Nov 25 - Tue, Dec 23
BUF
Buffalo
KIX
Osaka
$1,013 Roundtrip, found 2 days ago
$1,013
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 25 from Buffalo to Osaka, returning Tue, Dec 23, priced at $1,013 found 2 days ago
United
Tue, Nov 25 - Tue, Dec 23
BUF
Buffalo
KIX
Osaka
$1,015 Roundtrip, found 2 days ago
$1,015
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 25 from Buffalo to Osaka, returning Tue, Dec 23, priced at $1,015 found 2 days ago
United
Mon, Dec 1 - Tue, Dec 16
BUF
Buffalo
KIX
Osaka
$1,017 Roundtrip, found 1 day ago
$1,017
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 1 from Buffalo to Osaka, returning Tue, Dec 16, priced at $1,017 found 1 day ago
All Nippon Airways
Tue, Nov 25 - Tue, Dec 23
BUF
Buffalo
KIX
Osaka
$1,027 Roundtrip, found 2 days ago
$1,027
Roundtrip
found 2 days ago
Select All Nippon Airways flight, departing Tue, Nov 25 from Buffalo to Osaka, returning Tue, Dec 23, priced at $1,027 found 2 days ago
Delta
Thu, Jan 15 - Thu, Jan 22
BUF
Buffalo
KIX
Osaka
$1,067 Roundtrip, found 2 days ago
$1,067
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jan 15 from Buffalo to Osaka, returning Thu, Jan 22, priced at $1,067 found 2 days ago
Japan Airlines
Tue, Jan 13 - Tue, Jan 20
BUF
Buffalo
KIX
Osaka
$1,086 Roundtrip, found 3 days ago
$1,086
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Tue, Jan 13 from Buffalo to Osaka, returning Tue, Jan 20, priced at $1,086 found 3 days ago
American Airlines
Mon, Jan 12 - Sat, Jan 24
BUF
Buffalo
KIX
Osaka
$1,215 Roundtrip, found 2 days ago
$1,215
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jan 12 from Buffalo to Osaka, returning Sat, Jan 24, priced at $1,215 found 2 days ago

Alternative airports near Osaka

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

Select flight to Itami ITM. Closest option available. Average driving time to city center is 10 minutes. Flights from $1,347
ITM
Itami
Closest
Average driving time to city center10 min
Flights from $1,347
Select flight to Kobe Airport UKB. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $1,271
UKB
Kobe Airport
Cheapest
Average driving time to city center32 min
Flights from $1,271
Flights from Buffalo (BUF) to Osaka (KIX)
Origin airport
Buffalo Niagara Intl.
Destination airport
Kansai Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, British Airways, Delta, Etihad Airways, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Turkish Airlines, United
Roundtrip price
$1,006
Distance
6676 mi

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 December. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $579 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.

 

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX) cost?
Secure a cheap one-way flight from $579 or cheap return flight from $1,007 from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)?
December is the cheapest month to fly from BUF to KIX. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)?
To find the cheapest airline flying from BUF to KIX, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)?
Direct flights from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BUF to KIX?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)?
To touch down at Kansai Intl. Airport (KIX) without delays, pick a flight that leaves Buffalo Niagara Intl. Airport (BUF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX) last-minute?
Booking your ticket from BUF to KIX right before your getaway is typically more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a BUF to KIX flight and hotel package?
You can save money by booking a BUF to KIX flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Kansai Intl. Airport (KIX)?
In most instances, you're able to reschedule or cancel your BUF to KIX flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.