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Flight Reliability

F9 4257 · Frontier Airlines

Fort Lauderdale → Cleveland (FLL–CLE)

50
A Little Dicey
WanderNerd Reliability Score
65%
Arrive within 15 minutes
21 min
Average arrival delay
4.3%
Cancelled
7 min
Median arrival delay

Based on 69 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

F9 4257 arrived on time 73% of the time on Mondays and just 57% on Sundays. That gap is worth planning around.

Lagging the FLL–CLE route.

F9 4257 arrived on time 65% of the time, versus 80% across the FLL–CLE route.

Lagging the Frontier Airlines network.

F9 4257 arrived on time 65% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon73%(11 flights)
  • Tue—(8 flights)
  • Wed—(5 flights)
  • Thu67%(15 flights)
  • Fri58%(12 flights)
  • Sat—(1 flights)
  • Sun57%(14 flights)
On-time by departure window
  • 3–6 PM—(7 flights)
  • 6–9 PM65%(51 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
69%
Mar

Jan 63% → Mar 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202663%16
February 202667%18
March 202669%13
Departures on time
62%
Diverted
0%
Flights flown
66
Months covered
7

Same route, other flights

Keep nerding

Based on 69 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.