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Flight Reliability

AS 1304 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1304 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

84%
Arrive within 15 minutes
1 min early
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 188 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(28 flights)
  • Tue96%(23 flights)
  • Wed76%(25 flights)
  • Thu77%(30 flights)
  • Fri81%(26 flights)
  • Sat88%(24 flights)
  • Sun90%(30 flights)
On-time by departure window
  • 6–9 AM92%(36 flights)
  • 12–3 PM93%(54 flights)
  • 3–6 PM—(2 flights)
  • 6–9 PM76%(94 flights)
On-time trend by month
74%
May

Jun 82% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%11
August 2025100%11
September 202593%29
November 202583%12
December 202575%12
January 202689%26
February 202696%25
March 202686%14
May 202674%31
Departures on time
89%
Diverted
0%
Flights flown
186
Months covered
11

Keep nerding

Based on 188 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.