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Airport Reliability

SLC · Salt Lake City

Salt Lake City International Airport

85%
Departures within 15 minutes
7 min
Average departure delay
85%
Arrivals within 15 minutes
0.8%
Departures cancelled

Based on 118,371 departures and 118,182 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from SLC departing between 3–6 AM arrived on time 95% of the time, versus 81% between 6–9 PM.

Tuesday comes out ahead.

A small edge: 88% on time on Tuesdays against 83% on Sundays.

When SLC gets messy

On-time by departure window
  • 12–3 AM82%(284 flights)
  • 3–6 AM95%(1496 flights)
  • 6–9 AM90%(15873 flights)
  • 9 AM–12 PM87%(29404 flights)
  • 12–3 PM83%(15410 flights)
  • 3–6 PM83%(27307 flights)
  • 6–9 PM81%(12214 flights)
  • 9 PM–12 AM86%(15133 flights)
On-time by weekday
  • Mon85%(17365 flights)
  • Tue88%(16229 flights)
  • Wed86%(16252 flights)
  • Thu84%(17074 flights)
  • Fri84%(17330 flights)
  • Sat87%(15328 flights)
  • Sun83%(17543 flights)
On-time trend by month
86%
May

Jun 82% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%9935
July 202580%10254
August 202585%9955
September 202589%9401
October 202586%9857
November 202587%9060
December 202584%9669
January 202686%9353
February 202686%9075
March 202686%10501
April 202685%9893
May 202686%10168

Airlines departing SLC

Busiest routes from SLC

Based on 118,371 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.