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Flight Reliability

AS 1147 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1147 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

80%
Arrive within 15 minutes
7 min
Average arrival delay
1.9%
Cancelled
0 min
Median arrival delay

Based on 267 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(31 flights)
  • Tue74%(42 flights)
  • Wed85%(33 flights)
  • Thu85%(40 flights)
  • Fri63%(32 flights)
  • Sat85%(41 flights)
  • Sun86%(43 flights)
On-time by departure window
  • 3–6 PM85%(132 flights)
  • 6–9 PM75%(130 flights)
On-time trend by month
71%
May

Jun 76% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%21
July 202594%18
August 202586%22
September 202587%30
October 202592%24
January 202677%30
February 202679%28
March 202671%31
April 202673%30
May 202671%28
Departures on time
83%
Diverted
0%
Flights flown
262
Months covered
10

Keep nerding

Based on 267 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.