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Flight Reliability

AS 1259 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1259 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

75%
Arrive within 15 minutes
11 min
Average arrival delay
0.4%
Cancelled
3 min
Median arrival delay

Based on 276 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(38 flights)
  • Tue82%(39 flights)
  • Wed77%(39 flights)
  • Thu68%(40 flights)
  • Fri55%(40 flights)
  • Sat74%(39 flights)
  • Sun80%(40 flights)
On-time by departure window
  • 9 AM–12 PM84%(124 flights)
  • 12–3 PM67%(151 flights)
On-time trend by month
77%
May

Jun 80% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202593%30
August 202581%31
September 202580%30
January 202671%31
February 202686%28
March 202652%31
April 202650%30
May 202677%31
Departures on time
80%
Diverted
0%
Flights flown
275
Months covered
10

Keep nerding

Based on 276 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.