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Flight Reliability

AS 373 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 373 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

85%
Arrive within 15 minutes
5 min early
Average arrival delay
0.4%
Cancelled
15 min early
Median arrival delay

Based on 282 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(39 flights)
  • Tue81%(43 flights)
  • Wed95%(42 flights)
  • Thu88%(43 flights)
  • Fri85%(39 flights)
  • Sat85%(34 flights)
  • Sun85%(39 flights)
On-time by departure window
  • 6–9 AM81%(138 flights)
  • 9 AM–12 PM90%(98 flights)
  • 12–3 PM90%(29 flights)
  • 3–6 PM79%(14 flights)
On-time trend by month
95%
May

Jun 86% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%29
July 202587%31
August 202597%31
September 202590%30
October 202574%31
November 2025100%29
December 202563%30
March 202672%18
April 202694%18
May 202695%19
Departures on time
88%
Diverted
0.7%
Flights flown
279
Months covered
12

Keep nerding

Based on 282 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.