Frederick W. Smith International Airport
Memphis, United StatesMEM / KMEM
Major airport · 147 direct destinations · 4 runways · longest runway 11,119 ft
62 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Memphis → Louisville
MEM
MemphisFrederick W. Smith International Airport
MemphisFrederick W. Smith International AirportSDFLouisvilleLouisville Muhammad Ali International Airport
LouisvilleLouisville Muhammad Ali International Airport- Distance
- 319 mi
- Estimated flight time
- ~1h 10m
Louisville is currently 1 hour ahead of Memphis.
Observed nonstop
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
- 4
- busiest month · Oct
- 3
- quietest month · Jan
- 52 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 3Jan2026
- 4Feb
- 4Mar
- 3Apr
- 4May
- 3Jun
- 4Jul
- 3.5Aug
- 4Sep
- 4Oct2025
- 3.5Nov
- 4Dec
Airlines
Who flies it
UPS Airlinesall year
FedExall year
Kalitta Charters IInow and then
Atlas Airnow and then
Through the day
Departure times
Local time in Memphis. Most departures between 21:00 and 00:00.
- 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
- 0.6Mon
- 4.5Tue
- 4.1Wed
- 4.2Thu
- 4.1Fri
- 3.1Sat
- 1.1Sun
Fleet
Aircraft observed
- Airbus A300-600A30652%
- Boeing 767-300B76334%
- Boeing 757-200B7526%
- Boeing 747-400B7443%
- Boeing 737-400B7342%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 3 | 75 |
|
| February 2026 | 4 | 94 |
|
| March 2026 | 4 | 93 |
|
| April 2026 | 3 | 89 |
|
| May 2026 | 4 | 83 |
|
| June 2026 | 3 | 93 |
|
| July 2026 | 4 | 108 |
|
| August 2026 | 3.5 | 99 |
|
| September 2026 | 4 | 98 |
|
| October 2025 | 4 | 100 |
|
| November 2025 | 3.5 | 84 |
|
| December 2025 | 4 | 102 |
|
Airlines observed on this route
From observed callsign routes on MEM-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 Memphis: 147.
- 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
52 °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.
About the route from Memphis to Louisville
The observed direct connection between Frederick W. Smith International Airport (MEM) and Louisville Muhammad Ali International Airport (SDF) covers approximately 319 mi. The estimated flight time is around 1h 10m. Atlas Air, FedEx, Kalitta Charters II and UPS Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Memphis from Louisville by air?
- The great-circle distance between Frederick W. Smith International Airport and Louisville Muhammad Ali International Airport is approximately 319 mi.
- How long is the flight from Memphis to Louisville?
- Based on the distance, the estimated flight time is about 1h 10m. This is an estimate, not a schedule.
- Is there a direct connection from Memphis to Louisville?
- Yes, a direct connection between MEM and SDF has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Atlas Air, FedEx, Kalitta Charters II and UPS Airlines.
- How often is there a flight from Memphis to Louisville?
- On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,118 observed flights. Mainly UPS Airlines, FedEx, Kalitta Charters II. That is an observation, not a timetable.
- What is the current time difference between Memphis and Louisville?
- Louisville is currently 1 hour ahead of Memphis.
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.