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Flight Reliability

AS 137 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 137 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

86%
Arrive within 15 minutes
0 min
Average arrival delay
3.4%
Cancelled
12 min early
Median arrival delay

Based on 557 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(81 flights)
  • Tue88%(77 flights)
  • Wed81%(74 flights)
  • Thu77%(75 flights)
  • Fri94%(77 flights)
  • Sat86%(76 flights)
  • Sun86%(78 flights)
On-time by departure window
  • 6–9 AM85%(212 flights)
  • 9 AM–12 PM87%(326 flights)
On-time trend by month
86%
Apr

Jun 96% → Apr 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%49
July 202592%62
August 202576%46
September 202597%30
October 202594%53
November 202590%49
December 202591%43
January 202665%52
February 202676%50
March 202689%62
April 202686%42
Departures on time
84%
Diverted
0%
Flights flown
538
Months covered
11

Keep nerding

Based on 557 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.