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WanderNerd

Flight Reliability

AS 2020 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 2020 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

81%
Arrive within 15 minutes
1 min
Average arrival delay
3.2%
Cancelled
7 min early
Median arrival delay

Based on 222 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(31 flights)
  • Tue82%(34 flights)
  • Wed84%(31 flights)
  • Thu94%(32 flights)
  • Fri73%(30 flights)
  • Sat80%(25 flights)
  • Sun75%(32 flights)
On-time by departure window
  • 6–9 AM93%(40 flights)
  • 9 AM–12 PM88%(40 flights)
  • 3–6 PM76%(135 flights)
On-time trend by month
84%
Dec

Jun 82% → Dec 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%17
July 202563%30
August 202583%29
September 202596%25
October 202593%15
November 202583%47
December 202584%45
Departures on time
80%
Diverted
0%
Flights flown
215
Months covered
9

Based on 222 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.