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Flight Reliability

AS 312 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 312 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

82%
Arrive within 15 minutes
2 min
Average arrival delay
0%
Cancelled
5 min early
Median arrival delay

Based on 699 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(104 flights)
  • Tue80%(92 flights)
  • Wed85%(98 flights)
  • Thu84%(104 flights)
  • Fri83%(104 flights)
  • Sat92%(91 flights)
  • Sun77%(106 flights)
On-time by departure window
  • 6–9 AM87%(179 flights)
  • 9 AM–12 PM81%(175 flights)
  • 12–3 PM86%(97 flights)
  • 3–6 PM78%(248 flights)
On-time trend by month
95%
May

Jun 64% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%59
July 202576%62
August 202582%62
September 202590%60
October 202584%62
November 202577%60
December 202584%62
January 202685%48
February 202684%50
March 202675%60
April 202691%56
May 202695%58
Departures on time
82%
Diverted
0%
Flights flown
699
Months covered
12

Keep nerding

Based on 699 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.