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Flight Reliability

AS 231 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 231 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

88%
Arrive within 15 minutes
5 min early
Average arrival delay
1.7%
Cancelled
12 min early
Median arrival delay

Based on 302 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon95%(43 flights)
  • Tue89%(44 flights)
  • Wed90%(38 flights)
  • Thu72%(43 flights)
  • Fri91%(43 flights)
  • Sat90%(41 flights)
  • Sun88%(43 flights)
On-time by departure window
  • 6–9 AM89%(166 flights)
  • 12–3 PM96%(70 flights)
  • 3–6 PM—(5 flights)
  • 6–9 PM70%(23 flights)
  • 9 PM–12 AM81%(31 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%29
July 202585%27
August 202580%30
September 202593%30
November 202580%10
December 202578%18
January 202697%31
February 202679%28
March 202679%29
April 202693%30
May 202697%30
Departures on time
89%
Diverted
0.7%
Flights flown
295
Months covered
12

Keep nerding

Based on 302 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.