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Flight Reliability

AS 1104 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1104 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
2.6%
Cancelled
3 min
Median arrival delay

Based on 274 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(38 flights)
  • Tue82%(38 flights)
  • Wed76%(38 flights)
  • Thu71%(38 flights)
  • Fri66%(38 flights)
  • Sat66%(38 flights)
  • Sun69%(39 flights)
On-time by departure window
  • 12–3 PM71%(77 flights)
  • 3–6 PM53%(78 flights)
  • 6–9 PM84%(112 flights)
On-time trend by month
58%
May

Jun 83% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202593%29
August 202574%31
September 202587%30
January 202674%31
February 202646%26
March 202646%26
April 202670%30
May 202658%31
Departures on time
70%
Diverted
0%
Flights flown
267
Months covered
10

Keep nerding

Based on 274 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.