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Flight Reliability

AS 1333 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1333 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

85%
Arrive within 15 minutes
1 min early
Average arrival delay
0.6%
Cancelled
9 min early
Median arrival delay

Based on 164 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon96%(23 flights)
  • Tue79%(24 flights)
  • Wed81%(26 flights)
  • Thu88%(25 flights)
  • Fri83%(23 flights)
  • Sat95%(19 flights)
  • Sun77%(22 flights)
On-time by departure window
  • 6–9 AM86%(111 flights)
  • 9 AM–12 PM84%(19 flights)
  • 3–6 PM84%(32 flights)
On-time trend by month
88%
May

Nov 95% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202595%20
December 202573%15
January 202681%21
February 202674%27
March 202687%15
May 202688%49
Departures on time
87%
Diverted
0.6%
Flights flown
162
Months covered
8

Keep nerding

Based on 164 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.