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Flight Reliability

F9 2457 · Frontier Airlines

Los Angeles → San Jose (LAX–SJC)

82
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
4 min
Average arrival delay
1.3%
Cancelled
8 min early
Median arrival delay

Based on 77 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 2457 departing between 9 AM–12 PM arrived on time 82% of the time, versus 68% between 6–9 PM.

Sunday scaries are real for this one.

F9 2457 arrived on time 94% of the time on Thursdays and just 64% on Sundays. That gap is worth planning around.

Lagging the LAX–SJC route.

F9 2457 arrived on time 79% of the time, versus 88% across the LAX–SJC route.

A bit ahead of the Frontier Airlines network.

F9 2457 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon93%(14 flights)
  • Tue—(1 flights)
  • Wed—(0 flights)
  • Thu94%(16 flights)
  • Fri75%(16 flights)
  • Sat—(4 flights)
  • Sun64%(25 flights)
On-time by departure window
  • 6–9 AM—(8 flights)
  • 9 AM–12 PM82%(34 flights)
  • 12–3 PM70%(10 flights)
  • 3–6 PM—(5 flights)
  • 6–9 PM68%(19 flights)
On-time trend by month
65%
May

Jan 92% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202692%12
March 202671%14
April 202691%11
May 202665%20
Departures on time
80%
Diverted
0%
Flights flown
76
Months covered
7

Same route, other flights

Keep nerding

Based on 77 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.