Route · GSP → DCA · 2020–2025 BTS data
Greer to Washington
The GSP–DCA corridor (Greer, SC → Washington, DC) runs behind the national average, served by 8 carriers across roughly 396 miles.
Data updated 2026-06-13
- 78.8%
- On-time
- -0.2 pts
- vs US avg
- 79 min
- Delay when late
- 4,567
- Flights
Cancelled
4.0%
Best Month
Sep 2024 86%
Worst Month
Dec 2024 59%
Distance
396 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 75 | 23 | 4 | 0 | OH |
| Nov 2025 | 84 | 24 | 4 | 1 | OH,YX |
| Oct 2025 | 90 | 19 | 0 | 0 | OH,YX |
| Sep 2025 | 90 | 28 | 0 | 0 | OH,YX |
| Aug 2025 | 83 | 18 | 4 | 0 | AA,MQ,OH |
| Jul 2025 | 88 | 25 | 12 | 0 | OH,MQ |
| Jun 2025 | 90 | 25 | 13 | 0 | OH |
| May 2025 | 88 | 29 | 3 | 0 | OH |
| Apr 2025 | 86 | 17 | 2 | 0 | OH |
| Mar 2025 | 88 | 29 | 6 | 0 | OH |
| Feb 2025 | 69 | 23 | 4 | 2 | OH |
| Jan 2025 | 66 | 14 | 6 | 0 | OH |
| Dec 2024 | 85 | 35 | 1 | 2 | OH |
| Nov 2024 | 82 | 15 | 0 | 1 | OH |
| Oct 2024 | 88 | 13 | 0 | 0 | OH |
| Sep 2024 | 86 | 12 | 2 | 1 | OH |
| Aug 2024 | 87 | 13 | 2 | 1 | OH |
| Jul 2024 | 84 | 27 | 2 | 1 | OH |
| Jun 2024 | 80 | 15 | 2 | 0 | OH |
| May 2024 | 85 | 22 | 2 | 0 | OH |
| Apr 2024 | 82 | 23 | 0 | 0 | OH |
| Mar 2024 | 82 | 14 | 0 | 0 | OH,YX |
| Feb 2024 | 78 | 12 | 1 | 0 | OH,YX |
| Jan 2024 | 83 | 16 | 9 | 0 | YX,OH |
Cancellation Rate
4.0%
79 of 1,999 flights
Diversion Rate
0.5%
9 of 1,999 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 →DCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See GSP and DCA 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–DCA.
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What the Data Says About GSP to DCA
4,567 tracked flights put the GSP to DCA pairing (Greer to Washington) at a 78.8% on-time rate, squarely in line with the wider network. Delays that do occur run 78.6 minutes on average. Across the 396-mile route and its 8 carriers, the trailing 24 months show 4.0% cancelled and 0.5% diverted (1,999 flights sampled).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 86% on-time, while Dec 2024 came in at just 59% - a 27-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.