SFB to GSP flight delays & on-time performance
Nonstop flights from Orlando Sanford International Airport to Greenville-Spartanburg International Airport · 426 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFB or GSP 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 Greer (GSP) arrived on time 68% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.8% were cancelled, and 11% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (85% on time); around 1pm did worst (37%).
- Friday was the most reliable day to fly (91% on time) and Thursday the least (64%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
Which airline is most on time from SFB to GSP?
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 | 68% | 0.8% | 27 min | 11.4% | 133 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am85%40 flights
- 1pm37%38 flights
- 2pm92%13 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%0.0% cancelled
- Tuesday71%0.0% cancelled
- Thursday64%0.0% cancelled
- Friday91%0.0% cancelled
- Saturday40%0.0% cancelled
- Sunday69%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.
- Airline (crew, maintenance, cleaning, fueling)54%
- Air traffic control & airport congestion21%
- Late-arriving aircraft20%
- Extreme weather5%
- 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 GSP: common questions
- How often are SFB to GSP flights on time?
- 68% 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 Greer cancelled?
- 0.8% of scheduled flights were cancelled (1 of 133).
- How long are typical delays?
- Across all flights the average arrival delay was 27 min (early arrivals count as zero). Flights that were late arrived 81 min behind schedule on average, and 11.4% 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: GSP to SFB — 63% 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 → GSP, nonstop flights by US airlines that report to the DOT. How we calculate this.