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Flight Reliability

AS 2274 · Alaska Airlines

San Jose → Portland (SJC–PDX)90% of its flights flew this route. The rest (GEG–LAX, SAN–SFO) are included in these numbers.

95
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
2 min early
Average arrival delay
1.3%
Cancelled
8 min early
Median arrival delay

Based on 233 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AS 2274 departing between 9 AM–12 PM arrived on time 96% of the time, versus 83% between 12–3 PM.

Thursday comes out ahead.

A small edge: 97% on time on Thursdays against 92% on Fridays.

A bit ahead of the SJC–PDX route.

AS 2274 arrived on time 94% of the time, versus 87% across the SJC–PDX route.

Better than the Alaska Airlines network average.

AS 2274 arrived on time 94% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon94%(36 flights)
  • Tue93%(29 flights)
  • Wed93%(30 flights)
  • Thu97%(35 flights)
  • Fri92%(36 flights)
  • Sat93%(27 flights)
  • Sun94%(36 flights)
On-time by departure window
  • 9 AM–12 PM96%(205 flights)
  • 12–3 PM83%(23 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
97%
May

Jun 100% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202587%30
August 2025100%29
September 202596%24
October 202584%25
December 2025100%15
April 202695%21
May 202697%30
Departures on time
89%
Diverted
0.4%
Flights flown
229
Months covered
12

Same route, other flights

Keep nerding

Based on 233 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.