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Route Reliability

SUN → Salt Lake City

SUN–SLC · 222 miles · SUN Airport to Salt Lake City International Airport

100
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
8 min early
Average arrival delay
0.7%
Cancelled
1,078
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 95% of the time across 1,078 flights. No comparison to make.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 98% of the time, against 92% between 6–9 PM.

Tuesday has been the better bet.

A small edge: 97% on time on Tuesdays against 91% on Sundays.

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
  • Mon96%(155 flights)
  • Tue97%(153 flights)
  • Wed95%(147 flights)
  • Thu94%(149 flights)
  • Fri97%(152 flights)
  • Sat97%(155 flights)
  • Sun91%(158 flights)
On-time by departure window
  • 6–9 AM98%(360 flights)
  • 12–3 PM93%(359 flights)
  • 3–6 PM95%(338 flights)
  • 6–9 PM92%(12 flights)
On-time trend by month
96%
May

Jun 99% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202599%90
July 202595%93
August 202596%93
September 202597%90
October 202595%92
November 202598%86
December 202593%86
January 202691%90
February 202695%83
March 202698%93
April 202691%89
May 202696%84

Keep nerding

Based on 1,078 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.