SDF to DAL flight delays & on-time performance
Nonstop flights from Louisville Muhammad Ali International Airport to Dallas Love Field · 725 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SDF or DAL 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 Dallas (DAL) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.6% were cancelled, and 4% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (95% on time); around 12pm did worst (80%).
- Friday was the most reliable day to fly (92% on time) and Sunday the least (76%).
- The largest source of delay minutes was late-arriving aircraft (52%).
Which airline is most on time from SDF to DAL?
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 | 84% | 0.6% | 9 min | 4.1% | 350 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am100%13 flights
- 6am95%22 flights
- 7am88%17 flights
- 10am87%24 flights
- 12pm80%100 flights
- 1pm88%79 flights
- 3pm81%78 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.0% cancelled
- Tuesday88%0.0% cancelled
- Wednesday88%0.0% cancelled
- Thursday83%0.0% cancelled
- Friday92%0.0% cancelled
- Saturday82%2.9% cancelled
- Sunday76%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 aircraft52%
- Air traffic control & airport congestion24%
- Airline (crew, maintenance, cleaning, fueling)18%
- Extreme weather4%
- Security2%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SDF to DAL: common questions
- How often are SDF to DAL flights on time?
- 84% 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 Dallas cancelled?
- 0.6% of scheduled flights were cancelled (2 of 350).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 49 min behind schedule on average, and 4.1% of flights were an hour or more late.
- How long is taxi time at SDF?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DAL to SDF — 75% 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 → DAL, nonstop flights by US airlines that report to the DOT. How we calculate this.