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Flight Reliability

AS 508 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 508 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

74%
Arrive within 15 minutes
5 min
Average arrival delay
1.1%
Cancelled
4 min early
Median arrival delay

Based on 641 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(91 flights)
  • Tue73%(91 flights)
  • Wed86%(92 flights)
  • Thu76%(89 flights)
  • Fri72%(90 flights)
  • Sat81%(88 flights)
  • Sun60%(91 flights)
On-time by departure window
  • 9 AM–12 PM79%(289 flights)
  • 12–3 PM85%(66 flights)
  • 6–9 PM67%(277 flights)
On-time trend by month
84%
May

Jun 76% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%49
July 202561%59
August 202571%61
September 202588%60
October 202583%60
November 202576%58
December 202552%58
January 202671%35
February 202689%28
March 202672%43
April 202675%60
May 202684%61
Departures on time
75%
Diverted
0.3%
Flights flown
632
Months covered
12

Keep nerding

Based on 641 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.