Delta Air Lines SAN to SLC on-time performance
Delta Air Lines nonstop flights from San Diego to Salt Lake City · Aug 2025 – Jul 2026
On-time arrivals
89%
arrived < 15 min late
Cancelled
0.8%
14 flights
Avg arrival delay
9 min
76 min when late
Rank on route
#1 of 4
route average 84% on time
Key facts
- Delta Air Lines flights on SAN to SLC arrived on time 89% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 4% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was late-arriving aircraft (56%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft56%
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion6%
- Extreme weather0%
- Security0%
Other airlines on SAN to SLC
- SkyWest Airlines79% on time · 14 min avg delay
- Southwest Airlines76% on time · 12 min avg delay
- Frontier Airlines83% on time · 17 min avg delay
Full SAN to SLC comparison →
Delta Air Lines on-time record across all routes →
1,733 Delta Air Lines flights tracked on this route; 14 cancelled, 3 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.