MIA to GSP flight delays
Miami, FL (MIA) Greer, SC (GSP) · 637 miles
726 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
81.01%
Arrived on time
Within 15 minutes of schedule
1.24%
Cancelled
Share of scheduled flights
41 min
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In September it ran 31.5 points more punctual than in January — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only Envoy Air flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
The Miami to Greer route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Envoy Air arrived on time most often on MIA to GSP. Flights ran closest to schedule in September and worst in January.
Every airline on MIA to GSP
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Envoy Air | 705 | 81.06% | 0.99% | 41 min | C |
| Republic Airways | 21 | 78.95% | 9.52% | 48 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
GSP to MIA Greer back to Miami 80.45% on time COther routes from Miami
Common questions
Are flights from Miami to Greer usually delayed?
81.01% of flights on the MIA to GSP route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Miami to Greer?
Only Envoy Air appears in the published record on this route, with 705 flights and 81.06% arriving on time.
How often are MIA to GSP flights cancelled?
1.24% of scheduled flights did not operate — about 12 in every thousand. That is in the normal range.
What is the best month to fly Miami to Greer?
September, when 93.8% of flights arrived on time. The worst was January at 62.3%.
When MIA to GSP flights are late, how late are they?
About 41 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MIA to GSP during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →