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Flight Reliability

AS 1042 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 1042 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

78%
Arrive within 15 minutes
9 min
Average arrival delay
2.9%
Cancelled
1 min
Median arrival delay

Based on 416 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(59 flights)
  • Tue82%(49 flights)
  • Wed79%(48 flights)
  • Thu71%(59 flights)
  • Fri76%(62 flights)
  • Sat77%(64 flights)
  • Sun84%(63 flights)
On-time by departure window
  • 6–9 AM91%(35 flights)
  • 9 AM–12 PM90%(83 flights)
  • 3–6 PM75%(143 flights)
  • 6–9 PM70%(143 flights)
On-time trend by month
92%
May

Jun 53% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202553%60
July 202571%62
August 202568%62
September 202593%54
October 202581%48
January 202687%23
February 202685%20
March 202685%20
April 2026100%30
May 202692%25
Departures on time
79%
Diverted
0%
Flights flown
404
Months covered
10

Keep nerding

Based on 416 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.