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Flight Reliability

AS 1358 · Alaska Airlines

Sacramento → Seattle (SMF–SEA)90% of its flights flew this route. The rest (SAN–SEA) are included in these numbers.

82
Pretty Reliable
WanderNerd Reliability Score
77%
Arrive within 15 minutes
5 min
Average arrival delay
0.7%
Cancelled
2 min early
Median arrival delay

Based on 291 historical flights. Data through May 2026.

What the data says

The 9 AM–12 PM departure wins.

AS 1358 departing between 9 AM–12 PM arrived on time 97% of the time, versus 74% between 6–9 AM.

Sunday scaries are real for this one.

AS 1358 arrived on time 95% of the time on Tuesdays and just 58% on Sundays. That gap is worth planning around.

A bit behind the SMF–SEA route.

AS 1358 arrived on time 77% of the time, versus 83% across the SMF–SEA route.

A bit behind the Alaska Airlines network.

AS 1358 arrived on time 77% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon83%(46 flights)
  • Tue95%(37 flights)
  • Wed77%(39 flights)
  • Thu65%(46 flights)
  • Fri78%(45 flights)
  • Sat89%(36 flights)
  • Sun58%(40 flights)
On-time by departure window
  • 6–9 AM74%(19 flights)
  • 9 AM–12 PM97%(30 flights)
  • 12–3 PM75%(240 flights)
On-time trend by month
92%
May

Jun 50% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%16
July 202563%27
August 202554%24
September 202557%21
October 202572%25
November 202575%20
December 202569%29
January 202697%31
February 202693%28
March 202690%29
April 2026100%27
May 202692%12
Departures on time
81%
Diverted
0%
Flights flown
289
Months covered
12

Same route, other flights

Keep nerding

Based on 291 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.