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Flight Reliability

AS 374 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 374 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

81%
Arrive within 15 minutes
3 min early
Average arrival delay
1.5%
Cancelled
12 min early
Median arrival delay

Based on 326 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(47 flights)
  • Tue86%(44 flights)
  • Wed82%(45 flights)
  • Thu82%(45 flights)
  • Fri78%(46 flights)
  • Sat85%(46 flights)
  • Sun77%(47 flights)
On-time by departure window
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM81%(69 flights)
  • 6–9 PM70%(33 flights)
  • 9 PM–12 AM82%(214 flights)
On-time trend by month
87%
May

Jun 79% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%28
July 202568%31
August 202574%31
September 202597%30
October 202583%30
November 202593%29
December 202584%31
February 202671%17
March 202673%30
April 202679%28
May 202687%30
Departures on time
75%
Diverted
0.3%
Flights flown
320
Months covered
12

Keep nerding

Based on 326 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.