Delta Air Lines SFO to SLC on-time performance
Delta Air Lines nonstop flights from San Francisco to Salt Lake City · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
1.0%
17 flights
Avg arrival delay
18 min
75 min when late
Rank on route
#1 of 4
route average 77% on time
Key facts
- Delta Air Lines flights on SFO to SLC arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 8% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (58%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft58%
- Airline (crew, maintenance, cleaning, fueling)35%
- Air traffic control & airport congestion5%
- Security1%
- Extreme weather0%
Other airlines on SFO to SLC
- SkyWest Airlines77% on time · 17 min avg delay
- United Airlines76% on time · 14 min avg delay
- Frontier Airlines70% on time · 25 min avg delay
Full SFO to SLC comparison →
Delta Air Lines on-time record across all routes →
1,709 Delta Air Lines flights tracked on this route; 17 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.