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Route Reliability

Missoula → Denver

MSO–DEN · 679 miles · Missoula Montana Airport to Denver International Airport

83
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
9 min
Average arrival delay
0.7%
Cancelled
1,222
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines80% on time · 1,191 flights
  • Frontier Airlines84% on time · 31 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning-you made the right choice.

MSO–DEN flights departing between 6–9 AM arrived on time 93% of the time, versus 70% between 3–6 PM.

Skip Monday if you can.

MSO–DEN flights arrived on time 83% of the time on Saturdays. On Mondays: 76%.

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
  • Mon76%(189 flights)
  • Tue82%(167 flights)
  • Wed82%(165 flights)
  • Thu79%(164 flights)
  • Fri77%(184 flights)
  • Sat83%(168 flights)
  • Sun81%(171 flights)
On-time by departure window
  • 6–9 AM93%(358 flights)
  • 9 AM–12 PM85%(116 flights)
  • 12–3 PM77%(381 flights)
  • 3–6 PM70%(351 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
83%
May

Jun 68% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%102
July 202573%129
August 202571%128
September 202579%97
October 202581%121
November 202591%89
December 202576%92
January 202684%91
February 202690%83
March 202683%93
April 202691%90
May 202683%93

Keep nerding

Based on 1,222 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.