DAL to SDF flight delays & on-time performance
Nonstop flights from Dallas Love Field to Louisville Muhammad Ali International Airport · 725 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAL or SDF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Dallas (DAL) to Louisville (SDF) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.1% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (94% on time); around 4pm did worst (55%).
- Wednesday was the most reliable day to fly (85% on time) and Thursday the least (62%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from DAL 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 |
|---|---|---|---|---|---|
| Southwest Airlines | 75% | 1.1% | 15 min | 6.4% | 350 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 10am94%17 flights
- 11am82%110 flights
- 12pm70%31 flights
- 1pm64%85 flights
- 2pm76%55 flights
- 4pm55%21 flights
- 6pm77%14 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%1.9% cancelled
- Tuesday81%0.0% cancelled
- Wednesday85%0.0% cancelled
- Thursday62%0.0% cancelled
- Friday73%1.9% cancelled
- Saturday68%2.9% cancelled
- Sunday73%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 aircraft47%
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion13%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather75%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
DAL to SDF: common questions
- How often are DAL to SDF 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 Dallas to Louisville cancelled?
- 1.1% of scheduled flights were cancelled (4 of 350).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 6.4% of flights were an hour or more late.
- How long is taxi time at DAL?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SDF to DAL — 84% on time
More flights from Dallas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DAL → SDF, nonstop flights by US airlines that report to the DOT. How we calculate this.