San Diego International Airport
San Diego, United StatesSAN / KSAN
Major airport · 90 direct destinations · 1 runway · longest runway 9,400 ft
91 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
San Diego → Louisville
SAN
San DiegoSan Diego International Airport
San DiegoSan Diego International AirportSDFLouisvilleLouisville Muhammad Ali International Airport
LouisvilleLouisville Muhammad Ali International Airport- Distance
- 1,801 mi
- Estimated flight time
- ~4h 5m
Louisville is currently 3 hours ahead of San Diego.
Observed nonstop
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
- 3 hr 27 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 2Jan2026
- 2Feb
- 2Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 2Aug
- 2Sep
- 2Oct2025
- 2Nov
- 2Dec
Airlines
Who flies it
UPS Airlinesall year
Through the day
Departure times
Local time in San Diego. Most departures between 06:00 and 09:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 1.9Tue
- 2Wed
- 1.8Thu
- 1.9Fri
- 2Sat
- 1Sun
Fleet
Aircraft observed
- Boeing 767-300B76398%
- Cessna Citation CJ3C25B0%
- Cessna Citation LatitudeC68A0%
- H25B0%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 2 | 44 |
|
| February 2026 | 2 | 45 |
|
| March 2026 | 2 | 46 |
|
| April 2026 | 2 | 51 |
|
| May 2026 | 2 | 44 |
|
| June 2026 | 2 | 44 |
|
| July 2026 | 2 | 49 |
|
| August 2026 | 2 | 46 |
|
| September 2026 | 2 | 47 |
|
| October 2025 | 2 | 49 |
|
| November 2025 | 2 | 43 |
|
| December 2025 | 2 | 40 |
|
Airlines observed on this route
From observed callsign routes on SAN-SDF - not a booking guarantee.
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 San Diego: 90.
- Direct destinations observed from Louisville: 142.
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
54 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
SNA SDFJohn Wayne Orange County International AirportSanta Ana is about 76 mi from San Diego.View route →SAN CVGCincinnati Northern Kentucky International AirportHebron is about 84 mi from Louisville.View route →LGB SDFLong Beach International AirportLong Beach is about 93 mi from San Diego.View route →
About the route from San Diego to Louisville
The observed direct connection between San Diego International Airport (SAN) and Louisville Muhammad Ali International Airport (SDF) covers approximately 1,801 mi. The estimated flight time is around 4h 5m. UPS Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is San Diego from Louisville by air?
- The great-circle distance between San Diego International Airport and Louisville Muhammad Ali International Airport is approximately 1,801 mi.
- How long is the flight from San Diego 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 San Diego to Louisville?
- Yes, a direct connection between SAN and SDF has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: UPS Airlines.
- How often is there a flight from San Diego to Louisville?
- On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 548 observed flights. Mainly UPS Airlines. That is an observation, not a timetable.
- What is the current time difference between San Diego and Louisville?
- Louisville is currently 3 hours ahead of San Diego.
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.