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Route Reliability

Kalispell → Portland

FCA–PDX · 437 miles · Glacier Park International Airport to Portland International Airport

91
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
0 min
Average arrival delay
0.8%
Cancelled
361
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 86% of the time across 361 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

FCA–PDX flights departing between 12–3 PM arrived on time 89% of the time, versus 79% between 3–6 PM.

Thursdays have been rough.

FCA–PDX flights arrived on time 98% of the time on Mondays and just 78% on Thursdays. That gap is worth planning around.

Flights on this route

The breakdown

On-time by weekday
  • Mon98%(52 flights)
  • Tue87%(52 flights)
  • Wed78%(51 flights)
  • Thu78%(50 flights)
  • Fri86%(51 flights)
  • Sat92%(49 flights)
  • Sun85%(53 flights)
On-time by departure window
  • 12–3 PM89%(260 flights)
  • 3–6 PM79%(98 flights)
On-time trend by month
86%
May

Jun 77% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202581%31
August 202587%31
September 2025100%30
October 202590%31
November 202597%29
December 202574%31
January 202690%29
February 202689%28
March 202684%31
April 202683%29
May 202686%28

Keep nerding

Based on 361 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.