Skip to content
WanderNerd
Check a flight

Flight Reliability

F9 1101 · Frontier Airlines

Philadelphia → Atlanta (PHL–ATL)

42
Bring Snacks
WanderNerd Reliability Score
56%
Arrive within 15 minutes
29 min
Average arrival delay
2.6%
Cancelled
8 min
Median arrival delay

Based on 192 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1101 departing between 3–6 PM arrived on time 83% of the time, versus 46% between 12–3 PM.

Mondays have been rough.

F9 1101 arrived on time 89% of the time on Wednesdays and just 37% on Mondays. That gap is worth planning around.

Well behind the PHL–ATL route.

F9 1101 arrived on time 56% of the time, versus 78% across the PHL–ATL route.

Well behind the Frontier Airlines network.

F9 1101 arrived on time 56% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon37%(27 flights)
  • Tue79%(24 flights)
  • Wed89%(18 flights)
  • Thu48%(31 flights)
  • Fri45%(31 flights)
  • Sat57%(23 flights)
  • Sun53%(32 flights)
On-time by departure window
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM46%(22 flights)
  • 3–6 PM83%(12 flights)
  • 6–9 PM51%(139 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
50%
May

Jun 25% → May 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202525%20
July 202528%18
August 202535%26
September 202565%23
October 202583%30
November 202550%14
April 202673%11
May 202650%18
Departures on time
57%
Diverted
0.5%
Flights flown
186
Months covered
12

Same route, other flights

Keep nerding

Based on 192 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.