GSP to SFB flight delays & on-time performance
Nonstop flights from Greenville-Spartanburg International Airport to Orlando Sanford International Airport · 426 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GSP or SFB right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Greer (GSP) to Sanford (SFB) arrived on time 63% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.8% were cancelled, and 17% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (88% on time); around 3pm did worst (43%).
- Friday was the most reliable day to fly (82% on time) and Sunday the least (58%).
- The largest source of delay minutes was late-arriving aircraft (76%).
Which airline is most on time from GSP to SFB?
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 | 63% | 0.8% | 33 min | 17.4% | 133 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am88%40 flights
- 3pm43%28 flights
- 4pm23%13 flights
- 5pm73%12 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%0.0% cancelled
- Tuesday71%0.0% cancelled
- Thursday62%0.0% cancelled
- Friday82%0.0% cancelled
- Saturday40%0.0% cancelled
- Sunday58%2.0% 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 aircraft76%
- Air traffic control & airport congestion12%
- Airline (crew, maintenance, cleaning, fueling)11%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
GSP to SFB: common questions
- How often are GSP to SFB flights on time?
- 63% 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 Greer to Sanford cancelled?
- 0.8% of scheduled flights were cancelled (1 of 133).
- How long are typical delays?
- Across all flights the average arrival delay was 33 min (early arrivals count as zero). Flights that were late arrived 86 min behind schedule on average, and 17.4% of flights were an hour or more late.
- How long is taxi time at GSP?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SFB to GSP — 68% on time
More flights from Greer
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GSP → SFB, nonstop flights by US airlines that report to the DOT. How we calculate this.