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Flight Reliability

AS 2331 · Alaska Airlines

Kalispell → Seattle (FCA–SEA)

95
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
11 min early
Average arrival delay
1.9%
Cancelled
15 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Saturday is the weak spot.

AS 2331 arrived on time 100% of the time on Mondays. On Saturdays: 90%.

Better than the FCA–SEA route average.

AS 2331 arrived on time 95% of the time, versus 87% across the FCA–SEA route.

Better than the Alaska Airlines network average.

AS 2331 arrived on time 95% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon100%(50 flights)
  • Tue96%(52 flights)
  • Wed92%(52 flights)
  • Thu96%(50 flights)
  • Fri94%(50 flights)
  • Sat90%(51 flights)
  • Sun94%(52 flights)
On-time trend by month
87%
May

Jun 93% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 2025100%29
August 2025100%31
September 202597%30
October 202597%30
November 202596%28
December 202590%30
January 202693%29
February 202696%28
March 202694%31
April 202693%30
May 202687%31
Departures on time
97%
Diverted
0%
Flights flown
357
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.