ON TIMEBOARD

AA 3252 on time

American Airlines 3252: Miami to Seattle at 8:06 p.m. (past 12 months)

On time
68%
209 flights · likely 61–74%
Cancelled
0.0%
of scheduled flights
Typical arrival
+1 min
median vs schedule
When late
+48 min
average delay
Similar flights
66%
AA, same route & hour

About 1 in 3 AA 3252 flights from Miami arrived 15+ minutes late, diverted or cancelled over the past year (32%); 0.0% were cancelled. The typical flight landed 1 minutes late.

AA 3252: MIA → SEA

Scheduled to leave Miami at 8:06 p.m. local time. Over the past year it arrived on time 68% of the time (209 flights), in line with other AA flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%May 2025: 71% on time (31 flights)71MayJun 2025: 63% on time (30 flights)63JunJul 2025: 74% on time (31 flights)74JulAug 2025: 65% on time (31 flights)65AugSep 2025: 70% on time (30 flights)70SepOct 2025: 77% on time (31 flights)77OctNov 2025: too few flights (1 flights)NovApr 2026: 54% on time (24 flights)54AprMay 2026: 65% on time (31 flights)65MayJun 2026: 70% on time (30 flights)70JunJul 2026: 45% on time (31 flights)45JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday3070%
Tuesday3060%
Wednesday3067%
Thursday3077%
Friday3070%
Saturday3067%
Sunday2966%

Why it was late

Late inbound plane 38%Airline (crew, maintenance, ops) 30%Air traffic & airport (NAS) 24%Severe weather 6%Security 2%

All flights MIA → SEA · Connecting off AA 3252? Check the risk

Questions

How often is AA 3252 from MIA to SEA late?

American Airlines 3252 from Miami, FL to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 32% of 209 scheduled flights between September 2025 and August 2026. 0.0% 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.