Route Reliability
Greenville → Atlanta
GSP–ATL · 153 miles · Greenville–Spartanburg International Airport to Hartsfield–Jackson Atlanta International Airport
- 90%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 1.7%
- Cancelled
- 2,814
- Flights in the data
Data through May 2026.
Delta Air Lines is the only airline in this data on this route, arriving on time 90% of the time across 2,814 flights. No comparison to make.
What the data says
Morning flights do better here.
GSP–ATL flights departing between 3–6 AM arrived on time 95% of the time, versus 81% between 6–9 PM.
Sunday scaries are real for this one.
GSP–ATL flights arrived on time 93% of the time on Wednesdays. On Sundays: 86%.
Slipping a little lately.
GSP–ATL flights arrived on time 89% of the time over the last three months in the data, compared with 93% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon87%(423 flights)
- Tue90%(380 flights)
- Wed93%(379 flights)
- Thu91%(421 flights)
- Fri90%(421 flights)
- Sat90%(328 flights)
- Sun86%(410 flights)
- 3–6 AM95%(338 flights)
- 6–9 AM93%(705 flights)
- 9 AM–12 PM92%(547 flights)
- 12–3 PM89%(425 flights)
- 3–6 PM82%(526 flights)
- 6–9 PM81%(221 flights)
Jun 76% → May 88% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 230 |
| July 2025 | 85% | 251 |
| August 2025 | 89% | 251 |
| September 2025 | 94% | 237 |
| October 2025 | 91% | 254 |
| November 2025 | 94% | 226 |
| December 2025 | 90% | 204 |
| January 2026 | 95% | 192 |
| February 2026 | 94% | 200 |
| March 2026 | 83% | 226 |
| April 2026 | 96% | 237 |
| May 2026 | 88% | 254 |
Keep nerding
Based on 2,814 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.