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Flight Reliability

AS 2240 · Alaska Airlines

San Jose → Portland (SJC–PDX)

92
Nerd Approved
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min
Average arrival delay
0%
Cancelled
10 min early
Median arrival delay

Based on 232 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

AS 2240 departing between 12–3 PM arrived on time 96% of the time, versus 65% between 6–9 PM.

Friday is doing you no favors.

AS 2240 arrived on time 93% of the time on Wednesdays and just 76% on Fridays. That gap is worth planning around.

A bit behind the SJC–PDX route.

AS 2240 arrived on time 84% of the time, versus 87% across the SJC–PDX route.

A bit ahead of the Alaska Airlines network.

AS 2240 arrived on time 84% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon92%(37 flights)
  • Tue87%(30 flights)
  • Wed93%(30 flights)
  • Thu79%(34 flights)
  • Fri76%(37 flights)
  • Sat85%(26 flights)
  • Sun79%(38 flights)
On-time by departure window
  • 12–3 PM96%(109 flights)
  • 3–6 PM83%(54 flights)
  • 6–9 PM65%(69 flights)
On-time trend by month
65%
May

Aug 73% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202573%22
October 202590%29
November 202593%28
December 202578%23
January 202665%20
February 202694%16
March 202696%24
April 2026100%30
May 202665%31
Departures on time
83%
Diverted
0%
Flights flown
232
Months covered
10

Same route, other flights

Keep nerding

Based on 232 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.