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Flight Reliability

AS 3488 · Alaska Airlines

San Diego → Salt Lake City (SAN–SLC)91% of its flights flew this route. The rest (SLC–SAN) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
82%
Arrive within 15 minutes
2 min
Average arrival delay
0%
Cancelled
7 min early
Median arrival delay

Based on 237 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

AS 3488 departing between 9 AM–12 PM arrived on time 89% of the time, versus 70% between 3–6 PM.

Saturday is the weak spot.

AS 3488 arrived on time 86% of the time on Mondays. On Saturdays: 79%.

It basically never cancels.

Out of 237 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon86%(36 flights)
  • Tue82%(33 flights)
  • Wed83%(30 flights)
  • Thu79%(33 flights)
  • Fri83%(35 flights)
  • Sat79%(33 flights)
  • Sun81%(37 flights)
On-time by departure window
  • 6–9 AM86%(88 flights)
  • 9 AM–12 PM89%(55 flights)
  • 12–3 PM85%(13 flights)
  • 3–6 PM70%(69 flights)
  • 6–9 PM83%(12 flights)
On-time trend by month
85%
May

Jun 77% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202565%31
August 202574%19
October 202586%28
November 202583%30
December 202593%28
March 202679%14
April 2026100%26
May 202685%26
Departures on time
83%
Diverted
0%
Flights flown
237
Months covered
10

Same route, other flights

Keep nerding

Based on 237 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.