SFB to SDF flight delays & on-time performance
Nonstop flights from Orlando Sanford International Airport to Louisville Muhammad Ali International Airport · 698 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFB or SDF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Sanford (SFB) to Louisville (SDF) arrived on time 52% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.6% were cancelled, and 27% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 1pm did best (47% on time); around 6pm did worst (25%).
- Thursday was the most reliable day to fly (60% on time) and Sunday the least (40%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (33%).
Which airline is most on time from SFB 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 |
|---|---|---|---|---|---|
| Allegiant Air | 52% | 1.6% | 58 min | 27.2% | 127 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am100%10 flights
- 8am80%10 flights
- 12pm41%27 flights
- 1pm47%16 flights
- 5pm25%16 flights
- 6pm25%29 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday100%0.0% cancelled
- Tuesday83%0.0% cancelled
- Thursday60%0.0% cancelled
- Saturday48%0.0% cancelled
- Sunday40%4.1% 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)33%
- Late-arriving aircraft29%
- Extreme weather27%
- Air traffic control & airport congestion11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SFB to SDF: common questions
- How often are SFB to SDF flights on time?
- 52% 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 Sanford to Louisville cancelled?
- 1.6% of scheduled flights were cancelled (2 of 127).
- How long are typical delays?
- Across all flights the average arrival delay was 58 min (early arrivals count as zero). Flights that were late arrived 118 min behind schedule on average, and 27.2% of flights were an hour or more late.
- How long is taxi time at SFB?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SDF to SFB — 48% on time
More flights from Sanford
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SFB → SDF, nonstop flights by US airlines that report to the DOT. How we calculate this.