SDF to DTW flight delays & on-time performance
Nonstop flights from Louisville Muhammad Ali International Airport to Detroit Metropolitan Wayne County Airport · 306 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SDF or DTW 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 Detroit (DTW) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 8% arrived an hour or more late.
- Republic Airways was the most punctual airline here (90% on time); SkyWest Airlines was the least (79%).
- Departures scheduled around 7pm did best (90% on time); around 5pm did worst (60%).
- Wednesday was the most reliable day to fly (88% on time) and Friday the least (77%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (70%).
Which airline is most on time from SDF to DTW?
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 | 100% | 0.0% | 0 min | 0.0% | 10 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 90% | 0.2% | 9 min | 4.2% | 408 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 79% | 1.3% | 28 min | 11.0% | 699 |
| Delta Air Lines | 64% | 0.0% | 43 min | 18.2% | 11 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am90%364 flights
- 10am85%348 flights
- 1pm75%12 flights
- 2pm77%143 flights
- 3pm86%42 flights
- 5pm60%71 flights
- 6pm75%106 flights
- 7pm90%40 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday79%0.6% cancelled
- Tuesday85%0.0% cancelled
- Wednesday88%1.3% cancelled
- Thursday81%0.0% cancelled
- Friday77%1.2% cancelled
- Saturday87%1.4% cancelled
- Sunday84%1.8% 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)70%
- Extreme weather18%
- Air traffic control & airport congestion9%
- Late-arriving aircraft3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather70%
- Air traffic control & airport congestion20%
- Airline (crew, maintenance, cleaning, fueling)10%
- Security0%
SDF to DTW: common questions
- How often are SDF to DTW flights on time?
- 83% 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 Detroit cancelled?
- 0.9% of scheduled flights were cancelled (10 of 1,128).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 119 min behind schedule on average, and 8.5% of flights were an hour or more late.
- How long is taxi time at SDF?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DTW to SDF — 79% 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 → DTW, nonstop flights by US airlines that report to the DOT. How we calculate this.