Delta Air Lines SAN to DTW on-time performance
Delta Air Lines nonstop flights from San Diego to Detroit · Aug 2025 – Jul 2026
On-time arrivals
86%
arrived < 15 min late
Cancelled
1.0%
12 flights
Avg arrival delay
9 min
52 min when late
Rank on route
#1 of 2
route average 85% on time
Key facts
- Delta Air Lines flights on SAN to DTW arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 3% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was late-arriving aircraft (37%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft37%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion28%
- Extreme weather0%
- Security0%
Other airlines on SAN to DTW
- Spirit Airlines72% on time · 14 min avg delay
Full SAN to DTW comparison →
Delta Air Lines on-time record across all routes →
1,253 Delta Air Lines flights tracked on this route; 12 cancelled, 1 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.