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Route

Ontario → Louisville

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

Louisville is currently 3 hours ahead of Ontario.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Several times a day

On average around 5.5 flights a day, observed from October 2025 to September 2026.

5.5
flights per day
6
busiest month · Oct
5
quietest month · Mar
3 hr 23 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

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

Airlines

Who flies it

UPS Airlinesall year
Kalitta Airall year
Silver Airnow and then

Through the day

Departure times

Local time in Ontario. 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. 1Mon
  2. 5.7Tue
  3. 5.9Wed
  4. 5.2Thu
  5. 5.5Fri
  6. 5.4Sat
  7. 3.5Sun

Fleet

Aircraft observed

  1. Boeing 767-300B76366%
  2. Boeing 747-8B7489%
  3. Boeing 747-400B7448%
  4. Boeing 777-300ERB77W6%
  5. Airbus A300-600A3065%
All the numbers in a table
MonthPer daySeenAirlines
January 20266138
  • UPS Airlines127×
  • Kalitta Air11×
February 20266147
  • UPS Airlines134×
  • Kalitta Air12×
March 20265137
  • UPS Airlines127×
  • Kalitta Air10×
April 20265139
  • UPS Airlines128×
  • Kalitta Air11×
May 20265119
  • UPS Airlines106×
  • Kalitta Air11×
  • Silver Air2×
June 20265125
  • UPS Airlines116×
  • Kalitta Air8×
  • Silver Air1×
July 20265136
  • UPS Airlines129×
  • Kalitta Air7×
August 20265121
  • UPS Airlines113×
  • Kalitta Air8×
September 20266143
  • UPS Airlines130×
  • Kalitta Air13×
October 20256150
  • UPS Airlines150×
November 20256144
  • UPS Airlines144×
December 20256173
  • UPS Airlines164×
  • Kalitta Air8×

Airlines observed on this route

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

Kalitta Air

K4 · CKS

Hub: ANC Anchorage

44 departure airportsView airline →

Silver Air

SIS

Hub: BFL Bakersfield

11 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 Ontario: 63.
  • Direct destinations observed from Louisville: 142.

The airports on this route

Ontario International Airport

Ontario, United StatesONT / KONT

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

84 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Louisville Muhammad Ali International Airport

Louisville, United StatesSDF / KSDF

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

55 °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.

SBD SDFSan Bernardino International AirportSan Bernardino is about 21 mi from Ontario.View route →SNA SDFJohn Wayne Orange County International AirportSanta Ana is about 30 mi from Ontario.View route →LGB SDFLong Beach International AirportLong Beach is about 35 mi from Ontario.View route →BUR SDFHollywood Burbank/Bob Hope AirportBurbank is about 45 mi from Ontario.View route →

About the route from Ontario to Louisville

The observed direct connection between Ontario International Airport (ONT) and Louisville Muhammad Ali International Airport (SDF) covers approximately 1,792 mi. The estimated flight time is around 4h 5m. Kalitta Air, Silver Air and UPS Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Ontario from Louisville by air?
The great-circle distance between Ontario International Airport and Louisville Muhammad Ali International Airport is approximately 1,792 mi.
How long is the flight from Ontario to Louisville?
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 Ontario to Louisville?
Yes, a direct connection between ONT and SDF has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Kalitta Air, Silver Air and UPS Airlines.
How often is there a flight from Ontario to Louisville?
On average around 5.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,672 observed flights. Mainly UPS Airlines, Kalitta Air, Silver Air. That is an observation, not a timetable.
What is the current time difference between Ontario and Louisville?
Louisville is currently 3 hours ahead of Ontario.

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.