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Route

Louisville → Buffalo

SDFLouisvilleLouisville Muhammad Ali International Airport
BUFBuffaloBuffalo Niagara International Airport
Distance
493 mi
Estimated flight time
~1h 30m

Same local time in Louisville and Buffalo.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

A couple of times a day

On average around 2 flights a day, observed from October 2025 to September 2026.

2
flights per day
2
busiest month · Oct
1
quietest month · May
1 hr 9 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

  1. 2Jan2026
  2. 2Feb
  3. 2Mar
  4. 1.5Apr
  5. 1May
  6. 2Jun
  7. 2Jul
  8. 2Aug
  9. 1Sep
  10. 2Oct2025
  11. 2Nov
  12. 2Dec

Airlines

Who flies it

UPS Airlinesall year
Republic Airwaysnow and then

Through the day

Departure times

Local time in Louisville. Most departures between 04:00 and 07:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.1Mon
  2. 1.8Tue
  3. 1.8Wed
  4. 1.7Thu
  5. 1.9Fri
  6. 1.1Sat
  7. 1Sun

Fleet

Aircraft observed

  1. Airbus A300-600A30680%
  2. Boeing 767-300B76313%
  3. Boeing 757-200B7523%
  4. Bombardier Challenger 300CL301%
  5. Embraer 175E75L1%
All the numbers in a table
MonthPer daySeenAirlines
January 2026241
  • UPS Airlines39×
February 2026237
  • UPS Airlines37×
March 2026244
  • UPS Airlines40×
April 20261.540
  • UPS Airlines36×
  • Republic Airways2×
May 2026136
  • UPS Airlines34×
June 2026239
  • UPS Airlines38×
July 2026251
  • UPS Airlines46×
  • Republic Airways2×
August 2026242
  • UPS Airlines41×
September 2026134
  • UPS Airlines31×
  • Republic Airways1×
October 2025246
  • UPS Airlines45×
November 2025240
  • UPS Airlines39×
December 2025241
  • UPS Airlines40×

Airlines observed on this route

From observed callsign routes on SDF-BUF - not a booking guarantee.

Republic Airways

YX · RPA

Hub: ORD Chicago

107 departure airportsView airline →

UPS Airlines

5X · UPS

Hub: SDF Louisville

154 departure airportsView airline →

About this route

  • Domestic route: both airports are in the same country.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Louisville: 142.
  • Direct destinations observed from Buffalo: 62.

The airports on this route

Louisville Muhammad Ali International Airport

Louisville, United StatesSDF / KSDF

Regional airport · 142 direct destinations · 3 runways · longest runway 11,886 ft

55 °F · RainSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Buffalo Niagara International Airport

Buffalo, United StatesBUF / KBUF

Regional airport · 62 direct destinations · 2 runways · longest runway 8,829 ft

60 °F · RainSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

SDF ROCFrederick Douglass Greater Rochester International AirportRochester is about 55 mi from Buffalo.View route →SDF YHMJohn C. Munro Hamilton International AirportHamilton is about 63 mi from Buffalo.View route →SDF YYZToronto Pearson International AirportToronto is about 68 mi from Buffalo.View route →SDF YKFRegion of Waterloo International AirportKitchener is about 90 mi from Buffalo.View route →

About the route from Louisville to Buffalo

The observed direct connection between Louisville Muhammad Ali International Airport (SDF) and Buffalo Niagara International Airport (BUF) covers approximately 493 mi. The estimated flight time is around 1h 30m. Republic Airways and UPS Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Louisville from Buffalo by air?
The great-circle distance between Louisville Muhammad Ali International Airport and Buffalo Niagara International Airport is approximately 493 mi.
How long is the flight from Louisville to Buffalo?
Based on the distance, the estimated flight time is about 1h 30m. This is an estimate, not a schedule.
Is there a direct connection from Louisville to Buffalo?
Yes, a direct connection between SDF and BUF has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Republic Airways and UPS Airlines.
How often is there a flight from Louisville to Buffalo?
On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 491 observed flights. Mainly UPS Airlines, Republic Airways. That is an observation, not a timetable.
What is the current time difference between Louisville and Buffalo?
Same local time in Louisville and Buffalo.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.