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Flight Reliability

AS 259 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 259 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
8 min early
Average arrival delay
2.2%
Cancelled
9 min early
Median arrival delay

Based on 278 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(44 flights)
  • Tue88%(33 flights)
  • Wed94%(31 flights)
  • Thu95%(43 flights)
  • Fri86%(42 flights)
  • Sat77%(35 flights)
  • Sun91%(44 flights)
On-time by departure window
  • 6–9 AM95%(20 flights)
  • 6–9 PM—(9 flights)
  • 9 PM–12 AM87%(243 flights)
On-time trend by month
94%
May

Jun 79% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%19
July 202568%28
August 202592%25
September 202588%16
October 202592%12
December 202587%15
January 202687%31
February 202689%27
March 202687%31
April 202697%29
May 202694%31
Departures on time
87%
Diverted
0%
Flights flown
272
Months covered
12

Keep nerding

Based on 278 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.