Delta Air Lines GSP to DTW on-time performance
Delta Air Lines nonstop flights from Greer to Detroit · Aug 2025 – Jul 2026
On-time arrivals
91%
arrived < 15 min late
Cancelled
2.6%
10 flights
Avg arrival delay
7 min
69 min when late
Rank on route
#1 of 2
route average 87% on time
Key facts
- Delta Air Lines flights on GSP to DTW arrived on time 91% of the time in Aug 2025 – Jul 2026.
- 2.6% were cancelled, and 4% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 87% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft31%
- Air traffic control & airport congestion12%
- Extreme weather11%
- Security0%
Other airlines on GSP to DTW
- SkyWest Airlines78% on time · 31 min avg delay
Full GSP to DTW comparison →
Delta Air Lines on-time record across all routes →
392 Delta Air Lines flights tracked on this route; 10 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.