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Flight Reliability

F9 4547 · Frontier Airlines

Atlanta → Los Angeles (ATL–LAX)

68
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
10 min
Average arrival delay
2.3%
Cancelled
0 min
Median arrival delay

Based on 87 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 4547 departing between 6–9 PM arrived on time 72% of the time, versus 59% between 6–9 AM.

Thursdays have been rough.

F9 4547 arrived on time 86% of the time on Fridays and just 57% on Thursdays. That gap is worth planning around.

Lagging the ATL–LAX route.

F9 4547 arrived on time 69% of the time, versus 79% across the ATL–LAX route.

A bit behind the Frontier Airlines network.

F9 4547 arrived on time 69% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon67%(21 flights)
  • Tue—(3 flights)
  • Wed—(3 flights)
  • Thu57%(14 flights)
  • Fri86%(14 flights)
  • Sat75%(16 flights)
  • Sun64%(14 flights)
On-time by departure window
  • 6–9 AM59%(17 flights)
  • 6–9 PM72%(68 flights)
On-time trend by month
62%
Dec

Aug 73% → Dec 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202573%15
September 202582%17
October 202568%19
November 202580%10
December 202562%13
Departures on time
65%
Diverted
0%
Flights flown
85
Months covered
7

Same route, other flights

Keep nerding

Based on 87 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.