The cheapest times to fly from KIX to BUF are

  • January 8th to March 25th (except the week of March 12th)
  • May 7th to June 10th (except the weeks of May 14th and May 28th)
  • October 8th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from KIX to BUF is mid October. Prices can be as high as $2714 for Saturday flights during early to mid August, or as low as $959 for Tuesday flights around mid October.


When to Fly to Buffalo

Flying from Osaka (KIX) to Buffalo, NY (BUF) will usually cost between $988 to $1724 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $1038. Due to high demand the most expensive time to fly is early to mid August, with an average price of $2714. Planning your trip to low-cost times can easily save you $1676 on economy flights and even more on first-class flights. Generally, any price below $1217 can be considered a good price for a round-trip KIX to BUF flight.

See below for a graph of average weekly prices for the KIX to BUF route. All prices are for round-trip tickets in USD.

KIX to BUF Flight Prices

Compared to other flights, the KIX to BUF flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Osaka. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $320 (20%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1173. Return trip prices are from the BUF to KIX flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from KIX to BUF can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 60 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from KIX to BUF while comparing.

Destination alternative #1: Lester B. Pearson International Airport (YYZ) in Toronto

  • 68 miles (109 km) away from BUF
  • Usually 15.45% less expensive than BUF
  • 1-layover flights available

See KIX to YYZ flights


Flight Hacking KIX to BUF

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from KIX to BUF — but Champion Traveler does!

Hack #1: Los Angeles, CA (KIX > LAX > BUF)

  • Price for both tickets: $1070
  • Average savings: $148 (12.12%)

See KIX to PVG flights

Hack #2: Shanghai (KIX > PVG > BUF)

  • Price for both tickets: $1136
  • Average savings: $82 (6.7%)

See KIX to LAX flights

Hack #3: New York, NY (KIX > JFK > BUF)

  • Price for both tickets: $1191
  • Average savings: $26 (2.14%)

See KIX to JFK flights


Flight Questions Answered

Still have questions about flying from KIX to BUF? We’ve got answers.

Which airlines fly this route?

You can find 16 major airlines flying this route most often: Air Canada, Air China, Air France, American, ANA, Asiana, China Eastern, China Southern, Delta, Emirates, Hawaiian, JAL, JetBlue, KLM, Korean Air, United, and potentially more during busy seasons.

How far away is it from Buffalo Niagara International Airport to Kansai International Airport?

The distance between the two airports is roughly 6676 miles or 10744 kilometers.

How long does it take to fly from KIX to BUF?

The real-world flight time for a nonstop KIX to BUF flight is about 12 hour 60 minutes.

How many flights go between Osaka and Buffalo, NY?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from KIX to BUF.


Airport Location Info


Departing Airport

Origination codeKIX
Origination airport nameKansai International Airport

Return Airport

Destination codeBUF
Destination airport nameBuffalo Niagara International Airport
CityBuffalo, NY
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.