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Flight Reliability

AS 2359 · Alaska Airlines

Spokane → Seattle (GEG–SEA)96% of its flights flew this route. The rest (PDX–MSO) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
89%
Arrive within 15 minutes
0 min
Average arrival delay
2.0%
Cancelled
6 min early
Median arrival delay

Based on 252 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AS 2359 departing between 6–9 AM arrived on time 92% of the time, versus 71% between 6–9 PM.

Thursday is the weak spot.

AS 2359 arrived on time 95% of the time on Sundays. On Thursdays: 81%.

A bit ahead of the GEG–SEA route.

AS 2359 arrived on time 89% of the time, versus 86% across the GEG–SEA route.

Better than the Alaska Airlines network average.

AS 2359 arrived on time 89% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon83%(36 flights)
  • Tue89%(35 flights)
  • Wed94%(35 flights)
  • Thu81%(36 flights)
  • Fri88%(33 flights)
  • Sat94%(35 flights)
  • Sun95%(37 flights)
On-time by departure window
  • 6–9 AM92%(122 flights)
  • 9 AM–12 PM90%(101 flights)
  • 6–9 PM71%(24 flights)
On-time trend by month
100%
Mar

Jun 90% → Mar 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202597%31
August 202590%30
September 202597%30
October 202590%30
November 202579%28
January 202679%24
February 202686%28
March 2026100%16
Departures on time
91%
Diverted
0%
Flights flown
247
Months covered
10

Same route, other flights

Keep nerding

Based on 252 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.