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Flight Reliability

AS 353 · Alaska Airlines

Portland → Kahului (PDX–OGG)97% of its flights flew this route. The rest (MSP–SEA) are included in these numbers.

93
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
7 min early
Average arrival delay
0.6%
Cancelled
11 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

3–6 PM has a slight edge.

Departures between 3–6 PM arrived on time 89% of the time, against 86% between 6–9 PM.

Friday is doing you no favors.

AS 353 arrived on time 96% of the time on Mondays and just 78% on Fridays. That gap is worth planning around.

Better than the Alaska Airlines network average.

AS 353 arrived on time 88% of the time, versus 80% across the Alaska Airlines network.

Ticking up lately.

AS 353 arrived on time 88% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon96%(52 flights)
  • Tue86%(50 flights)
  • Wed94%(51 flights)
  • Thu88%(50 flights)
  • Fri78%(51 flights)
  • Sat84%(51 flights)
  • Sun91%(53 flights)
On-time by departure window
  • 3–6 PM89%(265 flights)
  • 6–9 PM86%(93 flights)
On-time trend by month
87%
May

Jun 83% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%29
July 202593%30
August 202594%31
September 202590%30
October 202597%29
November 202593%29
December 202577%31
January 202683%30
February 202686%28
March 202677%30
April 2026100%30
May 202687%31
Departures on time
84%
Diverted
0.3%
Flights flown
358
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.