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Flight Reliability

F9 1357 · Frontier Airlines

Las Vegas → Ontario (LAS–ONT)

92
Nerd Approved
WanderNerd Reliability Score
84%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
12 min early
Median arrival delay

Based on 230 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 1357 departing between 9 AM–12 PM arrived on time 86% of the time, versus 77% between 3–6 PM.

Tuesdays have been rough.

F9 1357 arrived on time 100% of the time on Wednesdays and just 75% on Tuesdays. That gap is worth planning around.

A bit ahead of the LAS–ONT route.

F9 1357 arrived on time 84% of the time, versus 77% across the LAS–ONT route.

Better than the Frontier Airlines network average.

F9 1357 arrived on time 84% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon79%(38 flights)
  • Tue75%(20 flights)
  • Wed100%(14 flights)
  • Thu86%(42 flights)
  • Fri81%(36 flights)
  • Sat91%(43 flights)
  • Sun81%(37 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM86%(80 flights)
  • 12–3 PM85%(94 flights)
  • 3–6 PM77%(51 flights)
  • 6–9 PM—(3 flights)
On-time trend by month
78%
May

Jun 74% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%19
July 202586%22
August 202580%25
September 202595%21
October 202586%22
November 202579%24
December 202582%11
January 202690%20
February 202690%19
March 202676%21
May 202678%18
Departures on time
83%
Diverted
0%
Flights flown
230
Months covered
12

Same route, other flights

Keep nerding

Based on 230 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.