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Flight Reliability

F9 3107 · Frontier Airlines

St. Louis → Las Vegas (STL–LAS)

80
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
6 min
Average arrival delay
2.7%
Cancelled
19 min early
Median arrival delay

Based on 111 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 3107 departing between 12–3 PM arrived on time 94% of the time, versus 76% between 9 PM–12 AM.

Mondays have been rough.

F9 3107 arrived on time 92% of the time on Saturdays and just 73% on Mondays. That gap is worth planning around.

Better than the Frontier Airlines network average.

F9 3107 arrived on time 82% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon73%(26 flights)
  • Tue—(9 flights)
  • Wed—(5 flights)
  • Thu—(9 flights)
  • Fri85%(27 flights)
  • Sat92%(13 flights)
  • Sun84%(19 flights)
On-time by departure window
  • 12–3 PM94%(31 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM85%(13 flights)
  • 9 PM–12 AM76%(63 flights)
On-time trend by month
92%
May

Nov 75% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202575%12
December 202580%15
January 202669%13
March 202695%21
May 202692%13
Departures on time
77%
Diverted
0%
Flights flown
108
Months covered
10

Same route, other flights

Keep nerding

Based on 111 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.