SDF to LAX flight delays & on-time performance
Nonstop flights from Louisville Muhammad Ali International Airport to Los Angeles International Airport · 1,843 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SDF or LAX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Louisville (SDF) to Los Angeles (LAX) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.7% were cancelled, and 6% arrived an hour or more late.
- Thursday was the most reliable day to fly (80% on time) and Sunday the least (61%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
Which airline is most on time from SDF to LAX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Spirit Airlines | 84% | 4.3% | 9 min | 6.8% | 46 |
| United Airlines | 50% | 0.0% | 22 min | 0.0% | 2 |
| American Airlines | 33% | 0.0% | 26 min | 0.0% | 3 |
| Delta Air Lines | 0% | 0.0% | 46 min | 0.0% | 2 |
| Southwest Airlines | 0% | 0.0% | 55 min | 0.0% | 1 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 4pm50%10 flights
- 6pm86%14 flights
- 8pm64%16 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%0.0% cancelled
- Tuesday100%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday80%0.0% cancelled
- Friday80%16.7% cancelled
- Saturday100%0.0% cancelled
- Sunday61%5.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)43%
- Late-arriving aircraft43%
- Air traffic control & airport congestion14%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)50%
- Extreme weather50%
- Air traffic control & airport congestion0%
- Security0%
SDF to LAX: common questions
- How often are SDF to LAX flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Louisville to Los Angeles cancelled?
- 3.7% of scheduled flights were cancelled (2 of 54).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 49 min behind schedule on average, and 5.8% of flights were an hour or more late.
- How long is taxi time at SDF?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAX to SDF — 85% on time
More flights from Louisville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SDF → LAX, nonstop flights by US airlines that report to the DOT. How we calculate this.