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Route

Louisville → Ontario

SDFLouisvilleLouisville Muhammad Ali International Airport
ONTOntarioOntario International Airport
Distance
1,792 mi
Estimated flight time
~4h 5m

Ontario is currently 3 hours behind Louisville.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Several times a day

On average around 4 flights a day, observed from October 2025 to September 2026.

4
flights per day
5
busiest month · Dec
4
quietest month · Oct
3 hr 52 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

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

Airlines

Who flies it

UPS Airlinesall year
Kalitta Airall year

Through the day

Departure times

Local time in Louisville. Most departures between 14:00 and 17:00.

  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. 0.3Mon
  2. 4.4Tue
  3. 4.6Wed
  4. 4Thu
  5. 4.3Fri
  6. 4.1Sat
  7. 3.6Sun

Fleet

Aircraft observed

  1. Boeing 767-300B76364%
  2. Boeing 747-400B74411%
  3. Boeing 747-8B74810%
  4. Boeing 777-300ERB77W7%
  5. McDonnell Douglas MD-11MD113%
All the numbers in a table
MonthPer daySeenAirlines
January 20264107
  • UPS Airlines98×
  • Kalitta Air9×
February 20264101
  • UPS Airlines91×
  • Kalitta Air10×
March 20264111
  • UPS Airlines102×
  • Kalitta Air9×
April 20264107
  • UPS Airlines97×
  • Kalitta Air10×
May 2026495
  • UPS Airlines83×
  • Kalitta Air11×
June 2026495
  • UPS Airlines81×
  • Kalitta Air13×
July 20264105
  • UPS Airlines95×
  • Kalitta Air10×
August 2026493
  • UPS Airlines84×
  • Kalitta Air8×
September 20264101
  • UPS Airlines89×
  • Kalitta Air12×
October 20254113
  • UPS Airlines113×
November 20254122
  • UPS Airlines122×
December 20255159
  • UPS Airlines151×
  • Kalitta Air7×

Airlines observed on this route

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

Kalitta Air

K4 · CKS

Hub: ANC Anchorage

44 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 Ontario: 63.

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

Ontario International Airport

Ontario, United StatesONT / KONT

Major airport · 63 direct destinations · 2 runways · longest runway 12,198 ft

89 °F · CloudySource: 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 SBDSan Bernardino International AirportSan Bernardino is about 21 mi from Ontario.View route →SDF SNAJohn Wayne Orange County International AirportSanta Ana is about 30 mi from Ontario.View route →SDF LGBLong Beach International AirportLong Beach is about 35 mi from Ontario.View route →SDF BURHollywood Burbank/Bob Hope AirportBurbank is about 45 mi from Ontario.View route →

About the route from Louisville to Ontario

The observed direct connection between Louisville Muhammad Ali International Airport (SDF) and Ontario International Airport (ONT) covers approximately 1,792 mi. The estimated flight time is around 4h 5m. Kalitta Air 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 Ontario by air?
The great-circle distance between Louisville Muhammad Ali International Airport and Ontario International Airport is approximately 1,792 mi.
How long is the flight from Louisville to Ontario?
Based on the distance, the estimated flight time is about 4h 5m. This is an estimate, not a schedule.
Is there a direct connection from Louisville to Ontario?
Yes, a direct connection between SDF and ONT has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Kalitta Air and UPS Airlines.
How often is there a flight from Louisville to Ontario?
On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,309 observed flights. Mainly UPS Airlines, Kalitta Air. That is an observation, not a timetable.
What is the current time difference between Louisville and Ontario?
Ontario is currently 3 hours behind Louisville.

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.