Delta Air Lines SLC to SFO on-time performance
Delta Air Lines nonstop flights from Salt Lake City to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
64%
arrived < 15 min late
Cancelled
1.0%
17 flights
Avg arrival delay
20 min
53 min when late
Rank on route
#4 of 4
route average 66% on time
Key facts
- Delta Air Lines flights on SLC to SFO arrived on time 64% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 10% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 66% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (56%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion56%
- Airline (crew, maintenance, cleaning, fueling)27%
- Late-arriving aircraft16%
- Extreme weather0%
- Security0%
Other airlines on SLC to SFO
- SkyWest Airlines66% on time · 27 min avg delay
- United Airlines71% on time · 21 min avg delay
- Frontier Airlines67% on time · 34 min avg delay
Full SLC to SFO comparison →
Delta Air Lines on-time record across all routes →
1,707 Delta Air Lines flights tracked on this route; 17 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.