Route · GSP → MIA · 2020–2025 BTS data
Greer to Miami
The GSP–MIA corridor (Greer, SC → Miami, FL) runs ahead of the national average, served by 3 carriers across roughly 637 miles.
Data updated 2026-06-13
- 85.5%
- On-time
- +6.5 pts
- vs US avg
- 73 min
- Delay when late
- 1,977
- Flights
Cancelled
0.5%
Best Month
Oct 2025 96%
Worst Month
May 2024 66%
Distance
637 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 65 | 11 | 0 | 0 | YX,MQ |
| Nov 2025 | 63 | 10 | 1 | 0 | MQ,YX |
| Oct 2025 | 57 | 2 | 0 | 0 | MQ |
| Sep 2025 | 32 | 1 | 0 | 0 | MQ |
| Aug 2025 | 63 | 10 | 0 | 0 | YX,MQ |
| Jul 2025 | 65 | 16 | 0 | 0 | YX,MQ |
| Jun 2025 | 64 | 21 | 1 | 0 | YX,MQ |
| May 2025 | 58 | 11 | 0 | 0 | MQ |
| Apr 2025 | 30 | 4 | 0 | 0 | MQ |
| Mar 2025 | 40 | 1 | 0 | 1 | MQ |
| Feb 2025 | 56 | 10 | 0 | 0 | MQ |
| Jan 2025 | 62 | 7 | 1 | 0 | MQ |
| Dec 2024 | 60 | 12 | 0 | 0 | MQ |
| Nov 2024 | 57 | 2 | 0 | 0 | MQ |
| Oct 2024 | 47 | 4 | 0 | 0 | MQ |
| Sep 2024 | 30 | 2 | 1 | 0 | MQ |
| Aug 2024 | 31 | 0 | 0 | 0 | MQ |
| Jul 2024 | 31 | 5 | 0 | 0 | MQ |
| Jun 2024 | 34 | 6 | 0 | 0 | MQ |
| May 2024 | 62 | 21 | 0 | 0 | MQ |
| Apr 2024 | 57 | 6 | 0 | 0 | MQ |
| Mar 2024 | 31 | 2 | 0 | 0 | MQ |
| Jan 2024 | 31 | 6 | 2 | 0 | MQ |
| Dec 2023 | 31 | 3 | 0 | 0 | MQ |
Cancellation Rate
0.5%
6 of 1,157 flights
Diversion Rate
0.1%
1 of 1,157 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GSP - Greer
Full on-time, delay-cause, and seasonal performance for Greer, SC.
Origin airport →MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
Destination airport →Compare the two airports
See GSP and MIA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to GSP–MIA.
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What the Data Says About GSP to MIA
Greer to Miami (GSP to MIA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.5% on-time rate across 1,977 flights, with delays that do happen averaging 73.0 minutes. The corridor runs roughly 637 miles and is served by 3 carriers. Over the most recent 24 months, 6 of 1,157 flights were cancelled (0.5%) and 1 diverted (0.1%).
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 96% on-time, while May 2024 came in at just 66% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.