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Flight Reliability

AS 1136 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1136 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

76%
Arrive within 15 minutes
10 min
Average arrival delay
1.6%
Cancelled
3 min
Median arrival delay

Based on 380 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(57 flights)
  • Tue75%(52 flights)
  • Wed70%(53 flights)
  • Thu66%(62 flights)
  • Fri81%(62 flights)
  • Sat83%(30 flights)
  • Sun79%(58 flights)
On-time by departure window
  • 6–9 AM79%(116 flights)
  • 9 AM–12 PM88%(116 flights)
  • 3–6 PM63%(142 flights)
On-time trend by month
81%
May

Jun 84% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%32
July 202572%54
August 202584%56
September 202590%60
October 202590%30
January 202650%30
February 202656%25
March 202662%26
April 202663%30
May 202681%31
Departures on time
77%
Diverted
0%
Flights flown
374
Months covered
10

Keep nerding

Based on 380 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.