Route
GSP → BNA
Greenville-Spartanburg International Airport Nashville International Airport
How punctual is this route?
- On-time arrivals
- 83.7%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 730
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Airline (crew, maintenance, cleaning) 18%
- Air traffic control & airport 13%
- Extreme weather 4%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.7% | 30 |
| October 2025 | 71.0% | 31 |
| November 2025 | 97.0% | 33 |
| December 2025 | 81.8% | 33 |
| January 2026 | 93.3% | 32 |
| February 2026 | 96.4% | 28 |
| March 2026 | 92.8% | 85 |
| April 2026 | 92.1% | 90 |
| May 2026 | 78.5% | 93 |
| June 2026 | 66.7% | 90 |
| July 2026 | 72.8% | 92 |
| August 2026 | 89.2% | 93 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 730 | 83.7% | 0.4% | 51 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN4535
36% late · 61 flights
-
WN4705
7% late · 60 flights
-
WN2240
3% late · 58 flights
-
WN2242
37% late · 58 flights
-
WN4574
5% late · 58 flights
-
WN1940
12% late · 49 flights
-
WN3118
0% late · 33 flights
-
WN1292
14% late · 28 flights
-
WN1828
0% late · 28 flights
-
WN2982
63% late · 27 flights
-
WN2759
12% late · 24 flights
-
WN186
10% late · 21 flights
-
WN3281
5% late · 21 flights
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