Skip to content
WanderNerd
Check a flight

Flight Reliability

AS 2109 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 2109 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

82%
Arrive within 15 minutes
2 min
Average arrival delay
2.1%
Cancelled
6 min early
Median arrival delay

Based on 327 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(46 flights)
  • Tue81%(41 flights)
  • Wed88%(40 flights)
  • Thu79%(48 flights)
  • Fri83%(47 flights)
  • Sat71%(51 flights)
  • Sun87%(47 flights)
On-time by departure window
  • 6–9 AM93%(44 flights)
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM76%(21 flights)
  • 3–6 PM88%(72 flights)
  • 6–9 PM77%(175 flights)
On-time trend by month
83%
May

Jun 79% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%29
July 202562%29
August 202577%30
September 202597%30
October 202584%25
November 202546%13
December 202579%29
January 202687%23
February 202696%23
March 202690%30
April 202690%29
May 202683%30
Departures on time
83%
Diverted
0%
Flights flown
320
Months covered
12

Keep nerding

Based on 327 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.