PHX to SLC flight delays & on-time performance
Nonstop flights from Phoenix Sky Harbor International Airport to Salt Lake City International Airport · 507 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHX or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Phoenix (PHX) to Salt Lake City (SLC) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (90% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 6am did best (96% on time); around 9pm did worst (64%).
- Tuesday was the most reliable day to fly (89% on time) and Thursday the least (79%).
- The largest source of delay minutes was late-arriving aircraft (52%).
Which airline is most on time from PHX to SLC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 90% | 0.6% | 8 min | 3.7% | 1,709 |
| Envoy AirRegional airline operating American Eagle flights. | 89% | 0.0% | 6 min | 0.0% | 64 |
| American Airlines | 88% | 0.4% | 10 min | 5.6% | 235 |
| Frontier Airlines | 85% | 1.4% | 11 min | 5.1% | 697 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 82% | 0.2% | 13 min | 6.8% | 1,209 |
| Southwest Airlines | 75% | 0.3% | 13 min | 5.9% | 1,859 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am96%471 flights
- 7am95%207 flights
- 8am86%559 flights
- 9am93%513 flights
- 10am87%278 flights
- 11am80%222 flights
- 12pm87%157 flights
- 1pm87%576 flights
- 2pm84%396 flights
- 3pm81%291 flights
- 4pm76%179 flights
- 5pm78%545 flights
- 6pm78%364 flights
- 7pm79%335 flights
- 8pm70%341 flights
- 9pm64%244 flights
- 10pm55%78 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.6% cancelled
- Tuesday89%0.4% cancelled
- Wednesday86%0.4% cancelled
- Thursday79%0.3% cancelled
- Friday82%0.4% cancelled
- Saturday86%0.4% cancelled
- Sunday80%0.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft52%
- Airline (crew, maintenance, cleaning, fueling)40%
- Air traffic control & airport congestion6%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)69%
- Extreme weather17%
- Air traffic control & airport congestion14%
- Security0%
PHX to SLC: common questions
- How often are PHX to SLC flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Phoenix to Salt Lake City cancelled?
- 0.5% of scheduled flights were cancelled (29 of 5,773).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 61 min behind schedule on average, and 5.2% of flights were an hour or more late.
- How long is taxi time at PHX?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to PHX — 84% on time
More flights from Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHX → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.