ON TIMEBOARD

AA 647 on time

American Airlines 647: Miami to Louisville at 9:05 p.m. (past 12 months)

On time
51%
171 flights · likely 44–59%
Cancelled
0.6%
of scheduled flights
Typical arrival
+12 min
median vs schedule
When late
+78 min
average delay
Similar flights
62%
AA, same route & hour

About 1 in 2 AA 647 flights from Miami arrived 15+ minutes late, diverted or cancelled over the past year (49%); 0.6% were cancelled. The typical flight landed 12 minutes late.

AA 647: MIA → SDF

Scheduled to leave Miami at 9:05 p.m. local time. Over the past year it arrived on time 51% of the time (171 flights), worse than other AA flights on the route at that hour (62%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Apr 2025: 67% on time (30 flights)67AprMay 2025: 52% on time (31 flights)52MayJun 2025: 67% on time (30 flights)67JunJul 2025: 55% on time (31 flights)55JulAug 2025: too few flights (5 flights)AugOct 2025: 46% on time (26 flights)46OctNov 2025: too few flights (1 flights)NovApr 2026: 71% on time (24 flights)71AprMay 2026: 65% on time (31 flights)65MayJun 2026: 57% on time (30 flights)57JunJul 2026: 29% on time (31 flights)29JulAug 2026: 43% on time (28 flights)43Aug

By day of week

DayFlightsOn time
Monday2540%
Tuesday2255%
Wednesday2560%
Thursday2548%
Friday2560%
Saturday2544%
Sunday2454%

Why it was late

Late inbound plane 63%Airline (crew, maintenance, ops) 27%Air traffic & airport (NAS) 7%Severe weather 3%

All flights MIA → SDF · Connecting off AA 647? Check the risk

Questions

How often is AA 647 from MIA to SDF late?

American Airlines 647 from Miami, FL to Louisville, KY arrived 15 or more minutes late, was diverted or was cancelled on 49% of 171 scheduled flights between September 2025 and August 2026. 0.6% 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 American Airlines for today's flight. Method.