ON TIMEBOARD

F9 3976 on time

Frontier Airlines 3976: Atlanta to Orlando at 12:39 p.m. (past 12 months)

On time
65%
291 flights · likely 59–70%
Cancelled
2.8%
of scheduled flights
Typical arrival
+1 min
median vs schedule
When late
+103 min
average delay
Similar flights
70%
F9, same route & hour

About 1 in 3 F9 3976 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (35%); 2.8% were cancelled. The typical flight landed 1 minutes late.

F9 3976: ATL → MCO

Scheduled to leave Atlanta at 12:39 p.m. local time. Over the past year it arrived on time 65% of the time (291 flights), worse than other F9 flights on the route at that hour (70%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 71% on time (17 flights)71SepOct 2025: 73% on time (22 flights)73OctNov 2025: 56% on time (27 flights)56NovDec 2025: 61% on time (31 flights)61DecJan 2026: 56% on time (25 flights)56JanFeb 2026: 70% on time (27 flights)70FebMar 2026: 44% on time (27 flights)44MarApr 2026: 75% on time (28 flights)75AprMay 2026: 84% on time (31 flights)84MayJun 2026: 80% on time (20 flights)80JunJul 2026: 44% on time (18 flights)44JulAug 2026: 56% on time (18 flights)56Aug

By day of week

DayFlightsOn time
Monday5357%
Tuesday3070%
Wednesday3174%
Thursday5275%
Friday5269%
Saturday2171%
Sunday5246%

Why it was late

Late inbound plane 55%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 21%

All flights ATL → MCO · Connecting off F9 3976? Check the risk

Questions

How often is F9 3976 from ATL to MCO late?

Frontier Airlines 3976 from Atlanta, GA to Orlando, FL arrived 15 or more minutes late, was diverted or was cancelled on 35% of 291 scheduled flights between September 2025 and August 2026. 2.8% 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.