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Flight Reliability

AS 2171 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 2171 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

91%
Arrive within 15 minutes
2 min early
Average arrival delay
2.3%
Cancelled
5 min early
Median arrival delay

Based on 263 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon97%(36 flights)
  • Tue87%(38 flights)
  • Wed87%(37 flights)
  • Thu92%(37 flights)
  • Fri94%(36 flights)
  • Sat89%(36 flights)
  • Sun95%(37 flights)
On-time by departure window
  • 3–6 AM100%(12 flights)
  • 6–9 AM91%(244 flights)
  • 3–6 PM—(1 flights)
On-time trend by month
95%
May

Jun 77% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202597%31
August 202597%31
September 202587%30
October 202590%30
November 2025100%20
January 202686%22
February 202692%26
March 2026100%17
May 202695%19
Departures on time
95%
Diverted
0%
Flights flown
257
Months covered
11

Keep nerding

Based on 263 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.