ON TIMEBOARD

AA 4639 on time

American Airlines 4639: Nashville to Raleigh at 12:00 p.m. (past 12 months)

On time
86%
140 flights · likely 80–91%
Cancelled
0.7%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+58 min
average delay
Similar flights
81%
AA, same route & hour

About 1 in 7 AA 4639 flights from Nashville arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.7% were cancelled. The typical flight landed 6 minutes early.

AA 4639: BNA → RDU

Scheduled to leave Nashville at 12:00 p.m. local time, operated by Republic Airways as YX 4639. Over the past year it arrived on time 86% of the time (140 flights), better than other AA flights on the route at that hour (81%). Last seen in the data Aug 4, 2026.

Month by month

40%70%100%Nov 2025: 83% on time (24 flights)83NovDec 2025: 75% on time (16 flights)75DecFeb 2026: 94% on time (17 flights)94FebMar 2026: too few flights (7 flights)MarMay 2026: too few flights (11 flights)MayJun 2026: 90% on time (30 flights)90JunJul 2026: 94% on time (31 flights)94JulAug 2026: too few flights (4 flights)Aug

By day of week

DayFlightsOn time
Monday2080%
Tuesday2190%
Wednesday19—
Thursday2085%
Friday2085%
Saturday2095%
Sunday2075%

Why it was late

Airline (crew, maintenance, ops) 41%Late inbound plane 37%Air traffic & airport (NAS) 22%

All flights BNA → RDU · Connecting off AA 4639? Check the risk

Questions

How often is AA 4639 from BNA to RDU late?

American Airlines 4639 from Nashville, TN to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 14% of 140 scheduled flights between September 2025 and August 2026. 0.7% 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.