ON TIMEBOARD

F9 4966 on time

Frontier Airlines 4966: Las Vegas to Cleveland at 12:18 a.m. (past 12 months)

On time
68%
255 flights · likely 62–73%
Cancelled
4.3%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+69 min
average delay
Similar flights
78%
F9, same route & hour

About 1 in 3 F9 4966 flights from Las Vegas arrived 15+ minutes late, diverted or cancelled over the past year (32%); 4.3% were cancelled. The typical flight landed 5 minutes early.

F9 4966: LAS → CLE

Scheduled to leave Las Vegas at 12:18 a.m. local time. Over the past year it arrived on time 68% of the time (255 flights), worse than other F9 flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Usually Frontier Airlines's last flight of the day from Las Vegas to Cleveland (60% of days). Frontier Airlines's last LAS–CLE flight was cancelled 1.8% of the time, against 4.8% for its earlier ones. If it's cancelled, the next Frontier Airlines flight is usually around 12:18 a.m. the next morning.

Month by month

40%70%100%Sep 2025: 88% on time (16 flights)88SepOct 2025: 71% on time (21 flights)71OctNov 2025: 79% on time (24 flights)79NovDec 2025: 88% on time (16 flights)88DecJan 2026: too few flights (8 flights)JanFeb 2026: 71% on time (21 flights)71FebMar 2026: 74% on time (31 flights)74MarApr 2026: 80% on time (30 flights)80AprMay 2026: too few flights (4 flights)MayJun 2026: 45% on time (22 flights)45JunJul 2026: 52% on time (31 flights)52JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday2966%
Tuesday2966%
Wednesday4093%
Thursday4063%
Friday4053%
Saturday3773%
Sunday4063%

Why it was late

Airline (crew, maintenance, ops) 57%Late inbound plane 34%Air traffic & airport (NAS) 7%Severe weather 2%

All flights LAS → CLE · Connecting off F9 4966? Check the risk

Questions

How often is F9 4966 from LAS to CLE late?

Frontier Airlines 4966 from Las Vegas, NV to Cleveland, OH arrived 15 or more minutes late, was diverted or was cancelled on 32% of 255 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.