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Flight Reliability

AS 2140 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 2140 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

86%
Arrive within 15 minutes
2 min
Average arrival delay
0.3%
Cancelled
5 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(49 flights)
  • Tue90%(49 flights)
  • Wed93%(53 flights)
  • Thu78%(51 flights)
  • Fri85%(52 flights)
  • Sat90%(51 flights)
  • Sun79%(52 flights)
On-time by departure window
  • 9 AM–12 PM76%(38 flights)
  • 12–3 PM96%(45 flights)
  • 3–6 PM91%(56 flights)
  • 6–9 PM86%(202 flights)
  • 9 PM–12 AM56%(16 flights)
On-time trend by month
80%
May

Jun 100% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%11
August 2025100%24
September 202588%60
October 202594%34
November 202583%29
December 202561%31
January 202677%31
February 202693%27
March 202694%31
April 202687%30
May 202680%49
Departures on time
85%
Diverted
0%
Flights flown
357
Months covered
11

Keep nerding

Based on 358 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.