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Flight Reliability

AS 500 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 500 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

71%
Arrive within 15 minutes
9 min
Average arrival delay
1.3%
Cancelled
2 min
Median arrival delay

Based on 632 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(96 flights)
  • Tue78%(78 flights)
  • Wed69%(84 flights)
  • Thu77%(93 flights)
  • Fri72%(94 flights)
  • Sat63%(82 flights)
  • Sun65%(96 flights)
On-time by departure window
  • 6–9 AM74%(23 flights)
  • 9 AM–12 PM72%(322 flights)
  • 6–9 PM69%(278 flights)
On-time trend by month
90%
May

Jun 50% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%48
July 202549%61
August 202556%59
September 202565%51
October 202582%51
November 202590%59
December 202564%56
January 202662%26
February 202676%42
March 202667%54
April 202691%54
May 202690%62
Departures on time
71%
Diverted
0.2%
Flights flown
623
Months covered
12

Keep nerding

Based on 632 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.