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Flight Reliability

AS 1423 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1423 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

87%
Arrive within 15 minutes
2 min early
Average arrival delay
1.7%
Cancelled
9 min early
Median arrival delay

Based on 177 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon96%(26 flights)
  • Tue88%(25 flights)
  • Wed87%(23 flights)
  • Thu83%(24 flights)
  • Fri88%(24 flights)
  • Sat89%(26 flights)
  • Sun77%(26 flights)
On-time by departure window
  • 3–6 PM91%(89 flights)
  • 6–9 PM100%(19 flights)
  • 9 PM–12 AM77%(66 flights)
On-time trend by month
100%
May

Nov 83% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202583%24
December 202574%31
February 202688%17
March 202690%30
April 202690%30
May 2026100%31
Departures on time
84%
Diverted
0%
Flights flown
174
Months covered
8

Keep nerding

Based on 177 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.