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Route Reliability

Denver → Kalispell

DEN–FCA · 752 miles · Denver International Airport to Glacier Park International Airport

86
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
5 min
Average arrival delay
0.7%
Cancelled
1,063
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 82% of the time across 1,063 flights. No comparison to make.

What the data says

Morning flights do better here.

DEN–FCA flights departing between 6–9 AM arrived on time 93% of the time, versus 75% between 6–9 PM.

Monday comes out ahead.

A small edge: 84% on time on Mondays against 79% on Saturdays.

Trending in the right direction.

DEN–FCA flights arrived on time 87% of the time over the last three months in the data, compared with 76% in the three months before that.

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
  • Mon84%(150 flights)
  • Tue83%(149 flights)
  • Wed83%(145 flights)
  • Thu81%(151 flights)
  • Fri83%(151 flights)
  • Sat79%(152 flights)
  • Sun80%(155 flights)
On-time by departure window
  • 6–9 AM93%(158 flights)
  • 9 AM–12 PM82%(361 flights)
  • 12–3 PM85%(175 flights)
  • 6–9 PM75%(359 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%119
July 202579%122
August 202582%123
September 202593%120
October 202590%112
November 202585%59
December 202563%76
January 202678%63
February 202687%55
March 202682%61
April 202695%59
May 202683%84

Keep nerding

Based on 1,063 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.