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Flight Reliability

AS 3431 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 3431 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

80%
Arrive within 15 minutes
6 min
Average arrival delay
1.2%
Cancelled
1 min early
Median arrival delay

Based on 246 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(34 flights)
  • Tue91%(33 flights)
  • Wed68%(38 flights)
  • Thu70%(37 flights)
  • Fri76%(33 flights)
  • Sat97%(29 flights)
  • Sun80%(39 flights)
On-time by departure window
  • 6–9 AM100%(15 flights)
  • 9 AM–12 PM79%(187 flights)
  • 3–6 PM67%(24 flights)
  • 6–9 PM94%(17 flights)
On-time trend by month
100%
May

Jun 70% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202568%31
August 202574%31
September 202587%30
October 202581%31
November 202590%29
December 202593%30
May 2026100%10
Departures on time
88%
Diverted
0%
Flights flown
243
Months covered
11

Keep nerding

Based on 246 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.