Delta Air Lines SLC to DEN on-time performance
Delta Air Lines nonstop flights from Salt Lake City to Denver · Aug 2025 – Jul 2026
On-time arrivals
81%
arrived < 15 min late
Cancelled
0.2%
3 flights
Avg arrival delay
14 min
67 min when late
Rank on route
#2 of 5
route average 79% on time
Key facts
- Delta Air Lines flights on SLC to DEN arrived on time 81% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)52%
- Air traffic control & airport congestion25%
- Late-arriving aircraft21%
- Extreme weather3%
- Security0%
Other airlines on SLC to DEN
- Southwest Airlines73% on time · 14 min avg delay
- SkyWest Airlines85% on time · 11 min avg delay
- United Airlines81% on time · 13 min avg delay
- Frontier Airlines79% on time · 17 min avg delay
Full SLC to DEN comparison →
Delta Air Lines on-time record across all routes →
1,696 Delta Air Lines flights tracked on this route; 3 cancelled, 8 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.