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Flight Reliability

AS 613 · Alaska Airlines

Las Vegas → San Francisco (LAS–SFO)

82
Pretty Reliable
WanderNerd Reliability Score
76%
Arrive within 15 minutes
4 min
Average arrival delay
0.6%
Cancelled
10 min early
Median arrival delay

Based on 324 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

AS 613 departing between 6–9 AM arrived on time 80% of the time, versus 43% between 9 AM–12 PM.

Mondays have been rough.

AS 613 arrived on time 93% of the time on Saturdays and just 69% on Mondays. That gap is worth planning around.

Better than the LAS–SFO route average.

AS 613 arrived on time 76% of the time, versus 67% across the LAS–SFO route.

A bit behind the Alaska Airlines network.

AS 613 arrived on time 76% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon69%(49 flights)
  • Tue78%(45 flights)
  • Wed79%(42 flights)
  • Thu70%(47 flights)
  • Fri73%(48 flights)
  • Sat93%(41 flights)
  • Sun76%(50 flights)
On-time by departure window
  • 6–9 AM80%(292 flights)
  • 9 AM–12 PM43%(30 flights)
On-time trend by month
27%
May

Jun 90% → May 27% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202542%31
August 202571%31
September 202597%29
October 202583%30
November 202590%30
December 202572%25
January 202690%31
February 202696%28
March 202690%29
April 202617%18
May 202627%11
Departures on time
78%
Diverted
0%
Flights flown
322
Months covered
12

Same route, other flights

Keep nerding

Based on 324 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.