Southwest Airlines PHX to SLC on-time performance
Southwest Airlines nonstop flights from Phoenix to Salt Lake City · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
0.3%
5 flights
Avg arrival delay
13 min
49 min when late
Rank on route
#6 of 6
route average 83% on time
Key facts
- Southwest Airlines flights on PHX to SLC arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #6 of 6 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was late-arriving aircraft (61%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft61%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion5%
- Extreme weather0%
- Security0%
Other airlines on PHX to SLC
- Delta Air Lines90% on time · 8 min avg delay
- SkyWest Airlines82% on time · 13 min avg delay
- Frontier Airlines85% on time · 11 min avg delay
- American Airlines88% on time · 10 min avg delay
- Envoy Air89% on time · 6 min avg delay
Full PHX to SLC comparison →
Southwest Airlines on-time record across all routes →
1,859 Southwest Airlines flights tracked on this route; 5 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.