Delta Air Lines GRR to DTW on-time performance
Delta Air Lines nonstop flights from Grand Rapids to Detroit · Aug 2025 – Jul 2026
On-time arrivals
76%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
24 min
98 min when late
Rank on route
#3 of 3
route average 79% on time
Key facts
- Delta Air Lines flights on GRR to DTW arrived on time 76% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 12% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (76%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion76%
- Airline (crew, maintenance, cleaning, fueling)24%
- Late-arriving aircraft0%
- Extreme weather0%
- Security0%
Other airlines on GRR to DTW
- SkyWest Airlines78% on time · 24 min avg delay
- Republic Airways92% on time · 4 min avg delay
Full GRR to DTW comparison →
Delta Air Lines on-time record across all routes →
17 Delta Air Lines flights tracked on this route; 0 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.