PHX to SDF flight delays & on-time performance
Nonstop flights from Phoenix Sky Harbor International Airport to Louisville Muhammad Ali International Airport · 1,506 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHX or SDF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Phoenix (PHX) to Louisville (SDF) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- Departures scheduled around 1pm did best (85% on time); around 4pm did worst (47%).
- Saturday was the most reliable day to fly (82% on time) and Tuesday the least (66%).
- The largest source of delay minutes was late-arriving aircraft (51%).
Which airline is most on time from PHX to SDF?
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 |
|---|---|---|---|---|---|
| American Airlines | 100% | 0.0% | 0 min | 0.0% | 3 |
| Southwest Airlines | 73% | 0.5% | 13 min | 6.3% | 369 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am79%19 flights
- 8am82%28 flights
- 9am84%64 flights
- 10am69%26 flights
- 11am89%10 flights
- 12pm80%52 flights
- 1pm85%39 flights
- 2pm86%14 flights
- 4pm47%19 flights
- 5pm53%59 flights
- 6pm67%27 flights
- 8pm54%13 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.0% cancelled
- Tuesday66%0.0% cancelled
- Wednesday75%0.0% cancelled
- Thursday75%0.0% cancelled
- Friday70%0.0% cancelled
- Saturday82%1.8% cancelled
- Sunday67%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft51%
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion12%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
PHX to SDF: common questions
- How often are PHX to SDF flights on time?
- 73% 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 Phoenix to Louisville cancelled?
- 0.5% of scheduled flights were cancelled (2 of 372).
- 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 43 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at PHX?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SDF to PHX — 83% on time
More flights from Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHX → SDF, nonstop flights by US airlines that report to the DOT. How we calculate this.