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Flight Reliability

AS 447 · Alaska Airlines

Portland → Boise (PDX–BOI)88% of its flights flew this route. The rest (CLE–SEA, ANC–SMF) are included in these numbers.

91
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
6 min early
Median arrival delay

Based on 185 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

AS 447 departing between 9 PM–12 AM arrived on time 86% of the time, versus 76% between 6–9 PM.

Saturdays have been rough.

AS 447 arrived on time 93% of the time on Sundays and just 73% on Saturdays. That gap is worth planning around.

A bit behind the PDX–BOI route.

AS 447 arrived on time 85% of the time, versus 89% across the PDX–BOI route.

A bit ahead of the Alaska Airlines network.

AS 447 arrived on time 85% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon86%(28 flights)
  • Tue91%(22 flights)
  • Wed87%(23 flights)
  • Thu84%(25 flights)
  • Fri82%(27 flights)
  • Sat73%(30 flights)
  • Sun93%(29 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 6–9 PM76%(21 flights)
  • 9 PM–12 AM86%(162 flights)
On-time trend by month
93%
May

Jun 93% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%14
November 202589%28
December 202572%29
January 202675%20
February 202687%23
March 202688%17
April 2026100%10
May 202693%30
Departures on time
83%
Diverted
0%
Flights flown
184
Months covered
11

Same route, other flights

Keep nerding

Based on 185 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.