Skip to content
WanderNerd
Check a flight

Flight Reliability

AS 491 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 491 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
6 min early
Average arrival delay
1.0%
Cancelled
13 min early
Median arrival delay

Based on 315 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(47 flights)
  • Tue85%(39 flights)
  • Wed90%(38 flights)
  • Thu87%(46 flights)
  • Fri85%(47 flights)
  • Sat89%(45 flights)
  • Sun83%(46 flights)
On-time by departure window
  • 6–9 AM88%(293 flights)
  • 9 AM–12 PM67%(15 flights)
On-time trend by month
97%
May

Jun 83% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%18
July 202593%30
August 202585%27
September 202595%21
November 202563%30
December 202575%28
January 202697%30
February 202696%28
March 202683%30
April 202690%29
May 202697%30
Departures on time
89%
Diverted
1.3%
Flights flown
308
Months covered
12

Keep nerding

Based on 315 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.