Route on-time record
PHX to SLC: most on-time flights and the best time to fly
Phoenix (Phoenix Sky Harbor International Airport) to Salt Lake City (Salt Lake City International Airport). 5,749 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was Delta 1535 at 6:05 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
PHX → SLC
Phoenix to Salt Lake City: 5,749 nonstop flights a year
On time (12 months)
83%
Cancelled
0.6%
avg delay 11 min
Best time to leave
Before 9 AM
91% on time vs 65% after 9 PM
Most reliable airline
Delta
89% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 1535
6:05 AM → 8:43 AM1h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.3%
- Avg arrival delay
- 4 min
- Arrived on time 97% of the time (364 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 65%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Strong track record · 364 flights
Find Delta 1535 fares Opens this date on Aviasales#2 · Delta 1777
9:33 AM → 12:10 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
96%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (25 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (25 flights), so its score leans on the airline's record at this hour.
Limited track record · 25 flights
Find Delta 1777 fares Opens this date on Aviasales#3 · American 3165
7:30 AM → 10:18 AM1h 48m nonstop
Local times, typical schedule. Last flown 2026-04-06.
96%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 65%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Limited track record · 30 flights
Find American 3165 fares Opens this date on Aviasales#4 · Delta 1447
9:42 AM → 12:23 PM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-06.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.9%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (205 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Strong track record · 205 flights
Find Delta 1447 fares Opens this date on Aviasales#5 · Delta 1451
7:33 PM → 9:59 PM1h 41m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 90% of the time (151 flights, Jun 2025 to May 2026).
- Never cancelled in 151 scheduled flights.
- Departs inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 151 flights
Find Delta 1451 fares Opens this date on Aviasales#6 · Frontier 1440
6:40 AM → 9:22 AM1h 43m nonstop
Local times, typical schedule. Last flown 2026-05-30.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 1.1%
- Avg arrival delay
- 10 min
- Arrived on time 91% of the time (267 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 65%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- 58% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 267 flights
Find Frontier 1440 fares Opens this date on Aviasales#7 · SkyWest 6389 · sold as United Express, Delta Connection, American Eagle or Alaska
1:52 PM → 4:38 PM1h 46m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as SkyWest 6378; its record covers all of them.
89%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.8%
- Avg arrival delay
- 6 min
- Arrived on time 90% of the time (130 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
Moderate track record · 130 flights
Find 1:52 PM flight fares Opens this date on Aviasales#8 · Southwest 872
7:20 AM → 10:00 AM1h 40m nonstop
Local times, typical schedule. Last flown 2026-04-05.
89%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 94% of the time (18 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; After 9 PM: 65%).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- Short track record (18 flights), so its score leans on the airline's record at this hour.
Limited track record · 18 flights
Find Southwest 872 fares Opens this date on Aviasales#9 · SkyWest 6506 · sold as United Express, Delta Connection, American Eagle or Alaska
5:52 PM → 8:40 PM1h 48m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as SkyWest 4912; its record covers all of them.
88%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 92% of the time (78 flights, Jun 2025 to May 2026).
- Never cancelled in 78 scheduled flights.
- Departs inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 78 flights
Find 5:52 PM flight fares Opens this date on Aviasales#10 · Delta 1431
1:40 PM → 4:21 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.6%
- Avg arrival delay
- 11 min
- Arrived on time 87% of the time (327 flights, Jun 2025 to May 2026).
- Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
- 58% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 327 flights
Find Delta 1431 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines89%
1,709 flights · 90% on time as flown · 0.6% cancel
- American Airlines86%
296 flights · 87% on time as flown · 0.4% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)83%
1,115 flights · 83% on time as flown · 0.3% cancel
- Envoy Air (sold as American Eagle)83%
115 flights · 83% on time as flown · 0.4% cancel
- Frontier Airlines81%
657 flights · 83% on time as flown · 1.9% cancel
- Southwest Airlines76%
1,857 flights · 76% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
1,225 flights · avg delay 6 min
- 9 AM to noon88%
1,006 flights · avg delay 7 min
- Noon to 3 PM85%
1,120 flights · avg delay 10 min
- 3 to 6 PM78%
1,072 flights · avg delay 14 min
- 6 to 9 PM77%
1,028 flights · avg delay 15 min
- After 9 PM65%
298 flights · avg delay 23 min
Best day: Tuesday (88%). Worst: Sunday (81%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft53%
- Airline (crew, maintenance, boarding)40%
- Air traffic control and airport volume6%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
PHX to SLC questions
- What time of day is best to fly PHX to SLC?
- Before 9 AM: 91% of flights arrived on time, against 65% for departures after 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from PHX to SLC?
- Delta, with a season-adjusted 89% chance of operating and arriving on time over 1,709 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on PHX to SLC?
- July (79% on time); the best was November (88%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from PHX
- SLC to PHX (return)
- PHX to DEN 77%
- PHX to LAX 83%
- PHX to SEA 83%
- PHX to LAS 79%
- PHX to SAN 74%
- PHX to ORD 77%
- PHX to DFW 80%
- PHX to SFO 71%
- PHX to SNA 80%
- PHX to ATL 82%
- PHX to PDX 79%
- PHX to SMF 80%
Live status: FAA delays and ground stops