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Flight Reliability

AS 306 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 306 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

71%
Arrive within 15 minutes
9 min
Average arrival delay
1.5%
Cancelled
2 min
Median arrival delay

Based on 472 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(68 flights)
  • Tue72%(60 flights)
  • Wed73%(66 flights)
  • Thu67%(66 flights)
  • Fri67%(69 flights)
  • Sat75%(64 flights)
  • Sun70%(71 flights)
On-time by departure window
  • 6–9 AM74%(279 flights)
  • 9 AM–12 PM74%(81 flights)
  • 3–6 PM70%(10 flights)
  • 6–9 PM57%(94 flights)
On-time trend by month
68%
May

Jun 60% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202561%31
August 202561%31
September 202567%30
October 202560%35
November 202577%51
December 202577%44
January 2026100%29
February 202689%27
March 202678%40
April 202659%54
May 202668%62
Departures on time
79%
Diverted
0.2%
Flights flown
464
Months covered
12

Keep nerding

Based on 472 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.