Delta Air Lines PHL to SLC on-time performance
Delta Air Lines nonstop flights from Philadelphia to Salt Lake City · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
1.2%
7 flights
Avg arrival delay
14 min
63 min when late
Rank on route
#1 of 2
route average 78% on time
Key facts
- Delta Air Lines flights on PHL to SLC arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (39%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion31%
- Late-arriving aircraft27%
- Extreme weather3%
- Security0%
Other airlines on PHL to SLC
- American Airlines73% on time · 31 min avg delay
Full PHL to SLC comparison →
Delta Air Lines on-time record across all routes →
598 Delta Air Lines flights tracked on this route; 7 cancelled, 0 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.