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Flight Reliability

AS 1191 · Alaska Airlines

Santa Ana → Seattle (SNA–SEA)99% of its flights flew this route. The rest (ITO–HNL) are included in these numbers.

79
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
7 min
Average arrival delay
0%
Cancelled
1 min early
Median arrival delay

Based on 149 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

AS 1191 arrived on time 85% of the time on Thursdays and just 55% on Sundays. That gap is worth planning around.

Lagging the SNA–SEA route.

AS 1191 arrived on time 74% of the time, versus 85% across the SNA–SEA route.

A bit behind the Alaska Airlines network.

AS 1191 arrived on time 74% of the time, versus 80% across the Alaska Airlines network.

It basically never cancels.

Out of 149 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon81%(21 flights)
  • Tue71%(21 flights)
  • Wed73%(22 flights)
  • Thu85%(20 flights)
  • Fri71%(21 flights)
  • Sat81%(21 flights)
  • Sun55%(22 flights)
On-time by departure window
  • 3–6 PM75%(146 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
92%
Oct

Jun 63% → Oct 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202581%31
August 202555%31
September 202587%30
October 202592%24
Departures on time
74%
Diverted
0.7%
Flights flown
148
Months covered
6

Same route, other flights

Keep nerding

Based on 149 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.