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Flight Reliability

F9 2858 · Frontier Airlines

San Francisco → Los Angeles (SFO–LAX)

64
A Little Dicey
WanderNerd Reliability Score
71%
Arrive within 15 minutes
21 min
Average arrival delay
2.4%
Cancelled
6 min early
Median arrival delay

Based on 205 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 2858 departing between 6–9 PM arrived on time 74% of the time, versus 63% between 9 PM–12 AM.

Sunday scaries are real for this one.

F9 2858 arrived on time 95% of the time on Tuesdays and just 53% on Sundays. That gap is worth planning around.

A bit behind the SFO–LAX route.

F9 2858 arrived on time 71% of the time, versus 76% across the SFO–LAX route.

Slipping a little lately.

F9 2858 arrived on time 68% of the time over the last three months in the data, compared with 72% in the three months before that.

The breakdown

On-time by weekday
  • Mon69%(32 flights)
  • Tue95%(19 flights)
  • Wed81%(21 flights)
  • Thu69%(36 flights)
  • Fri70%(33 flights)
  • Sat76%(25 flights)
  • Sun53%(34 flights)
On-time by departure window
  • 12–3 PM71%(14 flights)
  • 3–6 PM65%(20 flights)
  • 6–9 PM74%(134 flights)
  • 9 PM–12 AM63%(32 flights)
On-time trend by month
48%
May

Sep 60% → May 48% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
September 202560%10
October 202580%20
November 202572%29
December 202567%24
January 202665%17
February 202684%19
March 202671%28
April 202683%30
May 202648%23
Departures on time
72%
Diverted
0%
Flights flown
200
Months covered
9

Same route, other flights

Keep nerding

Based on 205 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.