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Flight Reliability

AS 1051 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1051 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

75%
Arrive within 15 minutes
8 min
Average arrival delay
1.7%
Cancelled
1 min
Median arrival delay

Based on 239 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(33 flights)
  • Tue82%(34 flights)
  • Wed84%(32 flights)
  • Thu71%(35 flights)
  • Fri56%(34 flights)
  • Sat78%(32 flights)
  • Sun74%(35 flights)
On-time by departure window
  • 9 AM–12 PM82%(121 flights)
  • 12–3 PM68%(114 flights)
On-time trend by month
61%
May

Jun 73% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202579%29
August 202585%27
September 202593%30
January 202670%30
February 202679%28
March 202669%16
April 202664%11
May 202661%31
Departures on time
80%
Diverted
0%
Flights flown
235
Months covered
10

Keep nerding

Based on 239 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.