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Route Reliability

Salt Lake City → Phoenix

SLC–PHX · 507 miles · Salt Lake City International Airport to Phoenix Sky Harbor International Airport

89
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
3 min
Average arrival delay
0.6%
Cancelled
5,752
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines88%1,725 flights
  2. 2.American Airlines87%1,511 flights
  3. 3.Southwest Airlines82%1,859 flights
  4. 4.Frontier Airlines80%657 flights

What the data says

Morning-you made the right choice.

SLC–PHX flights departing between 3–6 AM arrived on time 97% of the time, versus 71% between 6–9 PM.

Sunday scaries are real for this one.

SLC–PHX flights arrived on time 89% of the time on Saturdays. On Sundays: 81%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 88% of the time on this route; Frontier Airlines managed 80%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon83%(869 flights)
  • Tue88%(773 flights)
  • Wed85%(782 flights)
  • Thu83%(853 flights)
  • Fri85%(867 flights)
  • Sat89%(689 flights)
  • Sun81%(878 flights)
On-time by departure window
  • 3–6 AM97%(105 flights)
  • 6–9 AM93%(1281 flights)
  • 9 AM–12 PM87%(1028 flights)
  • 12–3 PM84%(810 flights)
  • 3–6 PM84%(1210 flights)
  • 6–9 PM71%(679 flights)
  • 9 PM–12 AM79%(598 flights)
On-time trend by month
86%
May

Jun 83% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%423
July 202579%427
August 202586%426
September 202588%409
October 202580%476
November 202579%470
December 202588%511
January 202687%487
February 202686%487
March 202688%576
April 202684%519
May 202686%500

Keep nerding

Based on 5,752 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.