ON TIMEBOARD

F9 4440 on time

Frontier Airlines 4440: Fort Lauderdale to Philadelphia at 9:45 p.m. (past 12 months)

On time
51%
208 flights · likely 45–58%
Cancelled
4.3%
of scheduled flights
Typical arrival
+10 min
median vs schedule
When late
+100 min
average delay
Similar flights
59%
F9, same route & hour

About 1 in 2 F9 4440 flights from Fort Lauderdale arrived 15+ minutes late, diverted or cancelled over the past year (49%); 4.3% were cancelled. The typical flight landed 10 minutes late.

F9 4440: FLL → PHL

Scheduled to leave Fort Lauderdale at 9:45 p.m. local time. Over the past year it arrived on time 51% of the time (208 flights), worse than other F9 flights on the route at that hour (59%). Last seen in the data Aug 31, 2026.

Usually Frontier Airlines's last flight of the day from Fort Lauderdale to Philadelphia (64% of days). Frontier Airlines's last FLL–PHL flight was cancelled 5.4% of the time, against 3.2% for its earlier ones. If it's cancelled, the next Frontier Airlines flight is usually around 1:09 p.m. the next morning.

Month by month

10%55%100%Feb 2025: too few flights (2 flights)FebMar 2025: too few flights (9 flights)MarApr 2025: too few flights (12 flights)AprDec 2025: 67% on time (27 flights)67DecJan 2026: 52% on time (25 flights)52JanFeb 2026: 24% on time (21 flights)24FebMar 2026: too few flights (10 flights)MarApr 2026: 50% on time (24 flights)50AprMay 2026: 59% on time (17 flights)59MayJun 2026: 57% on time (23 flights)57JunJul 2026: 39% on time (31 flights)39JulAug 2026: 63% on time (30 flights)63Aug

By day of week

DayFlightsOn time
Monday2864%
Tuesday2748%
Wednesday3474%
Thursday3043%
Friday2836%
Saturday3549%
Sunday2642%

Why it was late

Late inbound plane 76%Airline (crew, maintenance, ops) 16%Air traffic & airport (NAS) 7%Severe weather 1%

All flights FLL → PHL · Connecting off F9 4440? Check the risk

Questions

How often is F9 4440 from FLL to PHL late?

Frontier Airlines 4440 from Fort Lauderdale, FL to Philadelphia, PA arrived 15 or more minutes late, was diverted or was cancelled on 49% of 208 scheduled flights between September 2025 and August 2026. 4.3% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.