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Flight Reliability

AS 3440 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 3440 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
7 min
Average arrival delay
2.1%
Cancelled
5 min early
Median arrival delay

Based on 468 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(66 flights)
  • Tue81%(67 flights)
  • Wed82%(65 flights)
  • Thu76%(67 flights)
  • Fri83%(65 flights)
  • Sat75%(59 flights)
  • Sun79%(62 flights)
On-time by departure window
  • 6–9 AM89%(103 flights)
  • 9 AM–12 PM74%(272 flights)
  • 12–3 PM73%(11 flights)
  • 3–6 PM80%(50 flights)
  • 6–9 PM73%(15 flights)
On-time trend by month
56%
May

Jun 76% → May 56% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%41
July 202587%31
August 202579%29
September 202581%26
October 202577%30
November 202585%46
December 202572%39
January 202685%34
February 202686%43
March 202690%59
April 202659%39
May 202656%34
Departures on time
81%
Diverted
1.5%
Flights flown
451
Months covered
12

Keep nerding

Based on 468 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.