Skip to content
WanderNerd
Check a flight

Flight Reliability

AS 1321 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1321 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

70%
Arrive within 15 minutes
10 min
Average arrival delay
1.3%
Cancelled
3 min early
Median arrival delay

Based on 376 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(54 flights)
  • Tue76%(54 flights)
  • Wed68%(53 flights)
  • Thu67%(54 flights)
  • Fri67%(48 flights)
  • Sat72%(53 flights)
  • Sun74%(53 flights)
On-time by departure window
  • 9 AM–12 PM84%(174 flights)
  • 12–3 PM98%(41 flights)
  • 3–6 PM64%(78 flights)
  • 6–9 PM29%(76 flights)
On-time trend by month
100%
May

Jun 48% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%59
July 202546%59
August 202555%47
September 202576%29
October 202593%53
November 202597%30
December 202556%27
May 2026100%50
Departures on time
74%
Diverted
0.5%
Flights flown
369
Months covered
10

Keep nerding

Based on 376 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.