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Flight Reliability

AS 2258 · Alaska Airlines

Seattle → Portland (SEA–PDX)91% of its flights flew this route. The rest (SAN–PHX) are included in these numbers.

94
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
3 min early
Median arrival delay

Based on 182 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

AS 2258 departing between 12–3 PM arrived on time 94% of the time, versus 84% between 6–9 PM.

Thursdays have been rough.

AS 2258 arrived on time 93% of the time on Tuesdays and just 65% on Thursdays. That gap is worth planning around.

A bit ahead of the Alaska Airlines network.

AS 2258 arrived on time 86% of the time, versus 80% across the Alaska Airlines network.

It basically never cancels.

Out of 182 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon89%(26 flights)
  • Tue93%(27 flights)
  • Wed86%(29 flights)
  • Thu65%(26 flights)
  • Fri92%(26 flights)
  • Sat86%(22 flights)
  • Sun89%(26 flights)
On-time by departure window
  • 12–3 PM94%(16 flights)
  • 3–6 PM88%(56 flights)
  • 6–9 PM84%(110 flights)
On-time trend by month
92%
May

Jun 55% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%11
August 202592%12
September 202587%30
October 202576%21
December 202594%16
January 202696%22
February 202682%11
March 202682%17
April 202690%30
May 202692%12
Departures on time
86%
Diverted
0%
Flights flown
182
Months covered
10

Same route, other flights

Keep nerding

Based on 182 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.