Route · SLC → PHX · 2020–2025 BTS data
Salt Lake City to Phoenix
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to PHX (Salt Lake City to Phoenix) ranks #117 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.2%
- On-time
- +4.2 pts
- vs US avg
- 73 min
- Delay when late
- 30,395
- Flights
- #117 of 4927
- Corpus placement
Cancelled
0.5%
Best Month
May 2025 90%
Worst Month
Jul 2024 76%
Distance
507 mi
Carriers
38
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 514 | 63 | 3 | 0 | DL,WN,F9,AA,MQ,OO |
| Nov 2025 | 478 | 101 | 8 | 0 | OO,DL,F9,MQ,AA,WN |
| Oct 2025 | 476 | 98 | 0 | 0 | AA,OO,WN,DL,F9,MQ |
| Sep 2025 | 413 | 50 | 1 | 3 | MQ,WN,OO,DL,F9,AA |
| Aug 2025 | 429 | 60 | 1 | 2 | AA,OO,WN,F9,MQ,DL |
| Jul 2025 | 431 | 88 | 5 | 0 | AA,DL,OO,WN,F9,MQ |
| Jun 2025 | 428 | 80 | 3 | 2 | AA,DL,OO,WN,F9,MQ |
| May 2025 | 496 | 49 | 0 | 2 | AA,DL,OO,WN,F9,MQ |
| Apr 2025 | 511 | 91 | 3 | 0 | DL,F9,MQ,OO,WN,AA |
| Mar 2025 | 595 | 113 | 0 | 0 | AA,DL,OO,WN,F9,MQ |
| Feb 2025 | 471 | 81 | 1 | 0 | AA,DL,OO,WN,F9,MQ |
| Jan 2025 | 491 | 59 | 2 | 0 | AA,DL,OO,WN,F9,MQ |
| Dec 2024 | 541 | 85 | 0 | 0 | AA,DL,F9,MQ,OO,WN |
| Nov 2024 | 499 | 54 | 0 | 0 | OO,WN,DL,MQ,F9,AA |
| Oct 2024 | 488 | 54 | 0 | 0 | OO,WN,DL,F9,AA |
| Sep 2024 | 465 | 46 | 1 | 0 | WN,OO,AA,DL,F9 |
| Aug 2024 | 480 | 86 | 2 | 1 | DL,F9,MQ,WN,OO |
| Jul 2024 | 443 | 105 | 10 | 2 | DL,F9,MQ,OO,WN |
| Jun 2024 | 443 | 79 | 2 | 1 | AA,DL,F9,OO,WN |
| May 2024 | 529 | 81 | 3 | 0 | AA,DL,F9,MQ,OO,WN |
| Apr 2024 | 510 | 64 | 4 | 0 | AA,DL,F9,MQ,OO,WN |
| Mar 2024 | 522 | 107 | 3 | 0 | AA,DL,F9,OO,WN |
| Feb 2024 | 461 | 85 | 0 | 1 | AA,DL,F9,OO,WN |
| Jan 2024 | 502 | 108 | 2 | 1 | AA,DL,F9,MQ,WN,OO |
SLC–PHX seasonal on-time pattern
Best: September (87.7%) · weakest: July (76.8%)
Strongest calendar month
September
87.7% on-time · ~399 flights/mo
Busiest calendar month
March
~469 flights/mo avg
Weakest calendar month
July
76.8% on-time · ~402 flights/mo
Cancellation Rate
0.5%
54 of 11,616 flights
Diversion Rate
0.1%
15 of 11,616 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
SLC on-time profilePHX - Phoenix
Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.
PHX on-time profileCompare the two airports
See SLC and PHX side by side on delays, cancellations, and reliability.
Compare SLC vs PHXOrigin-hub reliability standing
Mid-pack among SLC departures
From SLC, this corridor sits with 31 other 75–85% on-time routes out of 85 tracked departures, not the hub's reliability leaders (54 at ≥85%) and not the softest ( 0 below 75%). Destination: Phoenix · fleet on-time rank #1895 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–PHX.
Routes with a similar on-time rate
What the Data Says About SLC to PHX
Bureau of Transportation Statistics records show Salt Lake City to Phoenix (SLC to PHX) running a 83.2% on-time rate over 30,395 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 73.4 minutes. The 507-mile corridor is served by 38 carriers, and over the last 24 months 0.5% of 11,616 flights were cancelled, 0.1% diverted.
Monthly performance varies moderately here: May 2025 was the strongest month at 90% on-time versus Jul 2024 at 76%, a 14-point difference.
On the multi-year calendar, SLC–PHX peaks in September at 87.7% on-time while March carries the heaviest traffic (~469 flights per month) ; the softest month is July at 76.8%, a 10.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SLC to PHX rank among US routes by traffic? ▼
How often are flights delayed from SLC to PHX? ▼
What is the cancellation rate for SLC to PHX? ▼
How far is the flight from SLC to PHX? ▼
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Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using SLC–PHX data
SLC–PHX runs 4.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare SLC and PHX airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
- If your dates flex, September (87.7% on-time) beats July (76.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.