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Louisville Muhammad Ali International Airport (SDF) delays and on-time record

Louisville, Kentucky KSDF #70 US airport by passengers

Live airport-wide delay programs from the FAA, the weather that causes them, and how each airline has actually performed at SDF.

FAA status
No delays reported Updated 3 min ago
Weather now
IFR 64°F Observed 22 min ago
Late departures
20.0%May 2026 to July 2026
Security line
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FAA delay status for SDF

The FAA is not reporting a ground stop, ground delay program or other delay at SDF right now.

Source: FAA National Airspace System Status, checked 3 min ago. Airline-specific delays are not shown here.

Current conditions at SDF

IFR

64°F18°C

Low cloud or poor visibility. Airports slow arrivals and delays become more likely.

Wind
330° 12 mph
Visibility
10+ mi
Clouds
BKN 800 ft, OVC 1,300 ft
Ceiling
800 ft
Pressure
29.96 inHg

METARSPECI KSDF 111621Z 33010KT 10SM BKN008 OVC013 18/16 A2996 RMK AO2 T01780161 $

Source: NOAA Aviation Weather Center. Observed 22 min ago.

On-time performance at SDF

Based on 6,331 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.

20.0%Departures late
24.2%Arrivals late
1.97%Cancelled
16.7 minAverage departure delay
On-time performance by airline at SDF
AirlineDeparturesLateCancelled
Republic Airways 1,726 11.8% 2.43%
Southwest Airlines 1,459 23.7% 0.75%
Delta Air Lines 744 14.5% 0.81%
SkyWest Airlines 576 21.5% 2.43%
American Airlines 568 26.9% 2.64%
PSA Airlines 490 23.7% 3.88%
Envoy Air 318 23.6% 1.57%
Allegiant Air 255 43.5% 0.39%
United Airlines 195 16.4% 0.51%

Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.

Late departures by month

AprMayJunJul

How delays work at SDF

A ground stop holds flights bound for SDF at their origin airports. A ground delay program spaces arrivals out so the airport is not overloaded. Departure and arrival delay messages describe the average wait the FAA expects. None of these tell you whether your own flight is late, so always check your airline as well.

Local tips

  • Reserve the Express Shuttle Lot at least four hours in advance for the lowest rate.
  • Check SDFPark.com for live lot status before you drive in.
  • Arrive two hours early to allow time to park and clear security.
  • The USO lounge location is disputed by sources, so confirm it before you plan a stop.