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Route Reliability

Los Angeles → Salt Lake City

LAX–SLC · 590 miles · Los Angeles International Airport to Salt Lake City International Airport

94
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
1 min early
Average arrival delay
0.4%
Cancelled
4,116
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.United Airlines91%623 flights
  2. 2.Delta Air Lines89%2,451 flights
  3. 3.American Airlines88%201 flights
  4. 4.Southwest Airlines85%374 flights
  5. 5.Frontier Airlines85%444 flights

Not enough history to rank: Spirit Airlines (23 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

LAX–SLC flights departing between 3–6 AM arrived on time 96% of the time, versus 82% between 3–6 PM.

Sunday scaries are real for this one.

LAX–SLC flights arrived on time 92% of the time on Tuesdays. On Sundays: 84%.

United Airlines has a slight edge here.

United Airlines arrived on time 91% of the time on this route; Frontier Airlines managed 85%.

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
  • Mon88%(615 flights)
  • Tue92%(535 flights)
  • Wed90%(543 flights)
  • Thu89%(607 flights)
  • Fri88%(610 flights)
  • Sat88%(554 flights)
  • Sun84%(627 flights)
On-time by departure window
  • 3–6 AM96%(196 flights)
  • 6–9 AM93%(778 flights)
  • 9 AM–12 PM90%(1153 flights)
  • 12–3 PM85%(690 flights)
  • 3–6 PM82%(619 flights)
  • 6–9 PM88%(655 flights)
On-time trend by month
91%
May

Jun 89% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%297
July 202586%291
August 202586%301
September 202591%337
October 202592%348
November 202591%320
December 202587%349
January 202684%392
February 202690%372
March 202687%418
April 202686%341
May 202691%325

Same trip, other airports

Keep nerding

Based on 4,116 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.