Delta Air Lines DTW to SAN on-time performance
Delta Air Lines nonstop flights from Detroit to San Diego · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
0.9%
11 flights
Avg arrival delay
16 min
59 min when late
Rank on route
#2 of 2
route average 75% on time
Key facts
- Delta Air Lines flights on DTW to SAN arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)41%
- Air traffic control & airport congestion29%
- Late-arriving aircraft26%
- Extreme weather4%
- Security0%
Other airlines on DTW to SAN
- Spirit Airlines89% on time · 4 min avg delay
Full DTW to SAN comparison →
Delta Air Lines on-time record across all routes →
1,253 Delta Air Lines flights tracked on this route; 11 cancelled, 7 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.