Route
MIA → GSP
Miami International Airport Greenville-Spartanburg International Airport
637 miles
Return route GSP → MIA →
How punctual is this route?
- On-time arrivals
- 79.3%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 724
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Air traffic control & airport 37%
- Airline (crew, maintenance, cleaning) 19%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.8% | 32 |
| October 2025 | 89.5% | 57 |
| November 2025 | 87.3% | 64 |
| December 2025 | 84.4% | 65 |
| January 2026 | 62.3% | 67 |
| February 2026 | 78.3% | 60 |
| March 2026 | 74.6% | 65 |
| April 2026 | 91.7% | 60 |
| May 2026 | 82.8% | 64 |
| June 2026 | 81.2% | 64 |
| July 2026 | 62.1% | 66 |
| August 2026 | 71.7% | 60 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Envoy Air | 698 | 79.7% | 1.0% | 46 min |
| Republic Airways | 26 | 66.7% | 7.7% | 113 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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