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Flight Reliability

AS 1040 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1040 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

77%
Arrive within 15 minutes
8 min
Average arrival delay
0%
Cancelled
1 min early
Median arrival delay

Based on 254 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(39 flights)
  • Tue81%(32 flights)
  • Wed77%(31 flights)
  • Thu70%(40 flights)
  • Fri77%(39 flights)
  • Sat78%(32 flights)
  • Sun80%(40 flights)
On-time by departure window
  • 9 AM–12 PM91%(150 flights)
  • 6–9 PM40%(10 flights)
  • 9 PM–12 AM58%(93 flights)
On-time trend by month
90%
May

Jun 48% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%29
July 202547%30
August 202564%25
September 202577%17
January 2026100%31
February 202693%27
March 202681%31
April 202690%30
May 202690%31
Departures on time
80%
Diverted
0.4%
Flights flown
253
Months covered
10

Keep nerding

Based on 254 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.