ON TIMEBOARD

F9 4146 on time

Frontier Airlines 4146: Los Angeles to Orlando at 11:00 p.m. (past 12 months)

On time
50%
206 flights · likely 44–57%
Cancelled
1.9%
of scheduled flights
Typical arrival
+12 min
median vs schedule
When late
+90 min
average delay
Similar flights
47%
F9, same route & hour

About 1 in 2 F9 4146 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (50%); 1.9% were cancelled. The typical flight landed 12 minutes late.

F9 4146: LAX → MCO

Scheduled to leave Los Angeles at 11:00 p.m. local time. Over the past year it arrived on time 50% of the time (206 flights), better than other F9 flights on the route at that hour (47%). Last seen in the data Aug 31, 2026.

Month by month

10%55%100%Jul 2025: 23% on time (31 flights)23JulAug 2025: 47% on time (30 flights)47AugSep 2025: 67% on time (18 flights)67SepOct 2025: 44% on time (25 flights)44OctNov 2025: too few flights (11 flights)NovDec 2025: 40% on time (15 flights)40DecJan 2026: too few flights (5 flights)JanMar 2026: 35% on time (26 flights)35MarApr 2026: 73% on time (30 flights)73AprMay 2026: 47% on time (15 flights)47MayJul 2026: 47% on time (30 flights)47JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday3348%
Tuesday2458%
Wednesday2357%
Thursday3241%
Friday3342%
Saturday2857%
Sunday3355%

Why it was late

Late inbound plane 48%Airline (crew, maintenance, ops) 37%Air traffic & airport (NAS) 14%

All flights LAX → MCO · Connecting off F9 4146? Check the risk

Questions

How often is F9 4146 from LAX to MCO late?

Frontier Airlines 4146 from Los Angeles, CA to Orlando, FL arrived 15 or more minutes late, was diverted or was cancelled on 50% of 206 scheduled flights between September 2025 and August 2026. 1.9% 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.