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Route Reliability

Salt Lake City → Missoula

SLC–MSO · 436 miles · Salt Lake City International Airport to Missoula Montana Airport

91
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
2 min
Average arrival delay
0.9%
Cancelled
1,059
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 88% of the time across 1,059 flights. No comparison to make.

What the data says

Morning flights do better here.

SLC–MSO flights departing between 9 AM–12 PM arrived on time 93% of the time, versus 78% between 9 PM–12 AM.

Wednesday is the weak spot.

SLC–MSO flights arrived on time 91% of the time on Saturdays. On Wednesdays: 79%.

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
  • Mon87%(156 flights)
  • Tue88%(153 flights)
  • Wed79%(146 flights)
  • Thu90%(149 flights)
  • Fri90%(148 flights)
  • Sat91%(140 flights)
  • Sun88%(154 flights)
On-time by departure window
  • 9 AM–12 PM93%(349 flights)
  • 3–6 PM91%(340 flights)
  • 9 PM–12 AM78%(357 flights)
On-time trend by month
93%
May

Jun 79% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%90
July 202586%92
August 202590%93
September 202588%74
October 202594%92
November 202590%82
December 202593%87
January 202687%86
February 202686%78
March 202683%90
April 202682%89
May 202693%93

Keep nerding

Based on 1,059 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.