Route on-time record
GSP to BNA: most on-time flights and the best time to fly
Greenville/Greer/Spartanburg (Greenville-Spartanburg International Airport) to Nashville (Nashville International Airport). 547 nonstop flights in Jun 2025 to May 2026, 89% arrived within 15 minutes and 0.5% were cancelled. The most reliable flight number was Southwest 2240 at 6:25 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
GSP → BNA
Greenville/Greer/Spartanburg to Nashville: 547 nonstop flights a year
On time (12 months)
89%
Cancelled
0.5%
avg delay 5 min
Best time to leave
Before 9 AM
98% on time vs 66% 6 to 9 PM
Most reliable airline
Southwest
88% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Southwest 2240
6:25 AM → 6:40 AM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3118; its record covers all of them.
96%
chance on time
- On time (history)
- 98%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 98% of the time (88 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 98% on time; 6 to 9 PM: 66%).
Moderate track record · 88 flights
Find Southwest 2240 fares Opens this date on Aviasales#2 · Southwest 1940
12:35 PM → 12:50 PM1h 15m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3792; its record covers all of them.
92%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (59 flights, Jun 2025 to May 2026).
- Never cancelled in 59 scheduled flights.
- Short track record (59 flights), so its score leans on the airline's record at this hour.
Limited track record · 59 flights
Find Southwest 1940 fares Opens this date on Aviasales#3 · Southwest 1958
10:45 AM → 11:05 AM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-30.
91%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 1958 fares Opens this date on Aviasales#4 · Southwest 1292
12:25 PM → 12:50 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-04-06.
87%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (28 flights, Jun 2025 to May 2026).
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 1292 fares Opens this date on Aviasales#5 · Southwest 747
6:00 PM → 6:20 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-04-05.
81%
chance on time
- On time (history)
- 89%
- Cancelled
- 10.0%
- Avg arrival delay
- 3 min
- Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 98%).
- Lands inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find Southwest 747 fares Opens this date on Aviasales#6 · Southwest 2242
6:25 PM → 6:45 PM1h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 4698; its record covers all of them.
74%
chance on time
- On time (history)
- 68%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 68% of the time (68 flights, Jun 2025 to May 2026).
- Never cancelled in 70 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 66% on time; Before 9 AM: 98%).
- Lands inside BNA's trouble window: 64% of its 44 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 68 flights
Find Southwest 2242 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Southwest Airlines88%
547 flights · 89% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM98%
88 flights · avg delay 1 min
- 9 AM to noon90%
286 flights · avg delay 4 min
- Noon to 3 PM92%
79 flights · avg delay 5 min
- 6 to 9 PM66%
68 flights · avg delay 15 min
Best day: Saturday (92%). Worst: Friday (83%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft63%
- Air traffic control and airport volume18%
- Airline (crew, maintenance, boarding)15%
- Security2%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
GSP to BNA questions
- What time of day is best to fly GSP to BNA?
- Before 9 AM: 98% of flights arrived on time, against 66% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from GSP to BNA?
- Southwest, with a season-adjusted 88% chance of operating and arriving on time over 547 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on GSP to BNA?
- May (79% on time); the best was November (97%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from GSP
- BNA to GSP (return)
- GSP to ATL 89%
- GSP to ORD 75%
- GSP to CLT 83%
- GSP to DFW 74%
- GSP to DCA 68%
- GSP to LGA 76%
- GSP to EWR 86%
- GSP to MIA 80%
- GSP to BWI 89%
- GSP to DTW 85%
- GSP to PHL 88%
- GSP to DEN 79%
Live status: FAA delays and ground stops