GSP to MIA flight delays & on-time performance
Nonstop flights from Greenville-Spartanburg International Airport to Miami International Airport · 637 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GSP or MIA 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 Miami (MIA) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.2% were cancelled, and 5% arrived an hour or more late.
- Departures scheduled around 6am did best (91% on time); around 8pm did worst (60%).
- Monday was the most reliable day to fly (86% on time) and Saturday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (49%).
Which airline is most on time from GSP to MIA?
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 |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 80% | 1.0% | 13 min | 4.8% | 701 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 74% | 8.0% | 19 min | 8.7% | 25 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am89%63 flights
- 6am91%263 flights
- 7am69%38 flights
- 10am80%15 flights
- 11am86%29 flights
- 12pm90%11 flights
- 4pm83%35 flights
- 6pm75%118 flights
- 7pm68%61 flights
- 8pm60%89 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%3.0% cancelled
- Tuesday83%0.0% cancelled
- Wednesday84%0.0% cancelled
- Thursday77%0.0% cancelled
- Friday78%0.0% cancelled
- Saturday74%2.3% cancelled
- Sunday82%3.1% 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)49%
- Late-arriving aircraft39%
- Air traffic control & airport congestion10%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather89%
- Air traffic control & airport congestion11%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
GSP to MIA: common questions
- How often are GSP to MIA flights on time?
- 80% 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 Miami cancelled?
- 1.2% of scheduled flights were cancelled (9 of 726).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 63 min behind schedule on average, and 4.9% of flights were an hour or more late.
- How long is taxi time at GSP?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to GSP — 80% 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 → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.