Salt Lake City (SLC) to Phoenix (PHX): On-Time Performance
Data through July 2026
On this route, when you fly matters more than who you fly. Book the morning: morning departures from SLC reach PHX on time 91% of the time, versus 76% later in the day. Overall the route posts a 84% on-time rate, ahead of the national 78%. Among carriers, Envoy Air has the edge at 89%.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 16
- last 12 months
- Duration
- 1h 46m
- scheduled
- Distance
- 507 mi
Best airline from SLC to PHX
6 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 89% | 5 min | 0.3% | 290 |
| SkyWest Airlines | 87% | 13 min | 0.1% | 2,429 |
| American Airlines | 87% | 21 min | 0.2% | 526 |
| Delta Air Lines | 86% | 9 min | 0.5% | 3,585 |
| Frontier Airlines | 81% | 17 min | 1.4% | 1,407 |
| Southwest Airlines | 81% | 12 min | 0.4% | 3,877 |
Monthly on-time trend
Best time to fly from SLC to PHX
Aim for departures around 5 a.m. (97% on-time); avoid 8 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 13 min |
| Tuesdaybest | 87% | 10 min |
| Wednesday | 86% | 12 min |
| Thursday | 82% | 13 min |
| Friday | 83% | 12 min |
| Saturday | 86% | 10 min |
| Sunday | 82% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations42%
- National airspace system10%
- Weather2%
Frequently asked questions
- How often are flights from SLC to PHX delayed?
- 16% of SLC–PHX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from SLC to PHX?
- Envoy Air has the best on-time record on this route at 89%, based on 290 flights. 6 airlines flew SLC–PHX frequently enough to compare in this period.
- What is the best time of day to fly from SLC to PHX?
- Departures around 5 a.m. have the best record (97% on-time), while departures around 8 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to PHX?
- The scheduled SLC–PHX flight time averages 1h 46m over 507 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are SLC to PHX flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for SLC to PHX?
- Tuesday flights have the best record at 87% on-time. Day-of-week differences on this route are modest.
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Based on 12,114 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.