ON TIMEBOARD

F9 3725 on time

Frontier Airlines 3725: Cincinnati to Denver at 8:36 p.m. (past 12 months)

On time
81%
278 flights · likely 76–85%
Cancelled
1.1%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+98 min
average delay
Similar flights
74%
F9, same route & hour

About 1 in 5 F9 3725 flights from Cincinnati arrived 15+ minutes late, diverted or cancelled over the past year (19%); 1.1% were cancelled. The typical flight landed 8 minutes early.

F9 3725: CVG → DEN

Scheduled to leave Cincinnati at 8:36 p.m. local time. Over the past year it arrived on time 81% of the time (278 flights), better than other F9 flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 96% on time (28 flights)96SepOct 2025: 87% on time (31 flights)87OctNov 2025: 96% on time (24 flights)96NovDec 2025: too few flights (13 flights)DecJan 2026: 71% on time (17 flights)71JanFeb 2026: 69% on time (16 flights)69FebMar 2026: 83% on time (24 flights)83MarApr 2026: 90% on time (21 flights)90AprMay 2026: too few flights (14 flights)MayJun 2026: 69% on time (29 flights)69JunJul 2026: 70% on time (30 flights)70JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday4781%
Tuesday3181%
Wednesday2864%
Thursday4982%
Friday4683%
Saturday3177%
Sunday4689%

Why it was late

Late inbound plane 54%Air traffic & airport (NAS) 26%Airline (crew, maintenance, ops) 19%Severe weather 1%

All flights CVG → DEN · Connecting off F9 3725? Check the risk

Questions

How often is F9 3725 from CVG to DEN late?

Frontier Airlines 3725 from Cincinnati, OH to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 19% of 278 scheduled flights between September 2025 and August 2026. 1.1% 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.