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Flight Reliability

AS 2358 · Alaska Airlines

Seattle → Spokane (SEA–GEG)97% of its flights flew this route. The rest (MSO–PDX) are included in these numbers.

96
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
4 min early
Average arrival delay
1.2%
Cancelled
7 min early
Median arrival delay

Based on 322 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

AS 2358 departing between 12–3 PM arrived on time 100% of the time, versus 92% between 6–9 PM.

Friday is doing you no favors.

AS 2358 arrived on time 100% of the time on Wednesdays. On Fridays: 91%.

Better than the SEA–GEG route average.

AS 2358 arrived on time 94% of the time, versus 83% across the SEA–GEG route.

Better than the Alaska Airlines network average.

AS 2358 arrived on time 94% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon94%(46 flights)
  • Tue98%(45 flights)
  • Wed100%(46 flights)
  • Thu91%(45 flights)
  • Fri91%(43 flights)
  • Sat91%(45 flights)
  • Sun94%(47 flights)
On-time by departure window
  • 6–9 AM94%(268 flights)
  • 12–3 PM100%(11 flights)
  • 6–9 PM92%(38 flights)
On-time trend by month
95%
May

Jun 100% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202594%31
August 202594%31
September 2025100%30
October 2025100%30
November 202589%26
December 202588%17
January 202692%24
February 202689%27
March 202690%31
April 202695%21
May 202695%19
Departures on time
92%
Diverted
0.3%
Flights flown
317
Months covered
12

Same route, other flights

Keep nerding

Based on 322 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.