is the most reliable airline on the GSP to DCA route with a 92% on-time rate, compared to PSA Airlines at 76%. Based on 93 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GSP to DCA
Greenville to Washington — airline reliability comparison
On-Time Rate by Airline
92%
Republic Airways87%
PSA Airlines76%
GSP to DCA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| MQBest | 92% | 0.0% | 54m | 93 |
| Republic AirwaysYX | 87% | 1.6% | 53m | 227 |
| PSA AirlinesOHWorst | 76% | 3.7% | 78m | 3,258 |
Route Overview
77%
Overall On-Time
78m
Avg Delay
3.5%
Cancel Rate
3,608
Total Flights
Flying out of GSP? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.