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Flight Reliability

AS 3429 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 3429 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

77%
Arrive within 15 minutes
6 min
Average arrival delay
2.4%
Cancelled
5 min early
Median arrival delay

Based on 420 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(72 flights)
  • Tue87%(54 flights)
  • Wed91%(44 flights)
  • Thu79%(66 flights)
  • Fri57%(67 flights)
  • Sat88%(43 flights)
  • Sun72%(64 flights)
On-time by departure window
  • 12–3 PM78%(316 flights)
  • 3–6 PM73%(94 flights)
On-time trend by month
71%
May

Jun 71% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%56
July 202589%62
August 202569%52
September 202574%34
October 202576%37
November 202574%57
December 202565%20
March 2026100%22
April 202676%46
May 202671%14
Departures on time
80%
Diverted
0%
Flights flown
410
Months covered
12

Keep nerding

Based on 420 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.