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American Airlines

Is AA4521 delayed?

AA4521 is cancelled on Nov 14.

Usually on time: arrived within 15 min of schedule on 18 of the last 25 flights.

Last reported

Cancelled

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Rochester

ROC

Scheduled

Nov 14

Arrival

Boston

BOS

Scheduled

Nov 14

Times shown in airport local time

Service date: · Scheduled departure date (America/New_York)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • Rochester → Boston

    14 min early

  • Rochester → Boston

    17 min early

  • Rochester → Boston

    28 min early

  • Rochester → Boston

    32 min early

  • Rochester → Boston

    26 min early

Is AA4521 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
25
On time
72%
of 25 arrivals
Late
28%
of 25 arrivals
Cancelled
7%
of 27 flights
Median arrival delay
14 min early
9 in 10 arrived within
44 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

Boston (BOS) departures

Left more than 15 min late
24 of 50
Cancelled today
53

Related flights

All American Airlines flights

Flight history and details
AA4521 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026CancelledRochesterBostonNot availableNot available
Nov 13, 2026ArrivedRochesterBoston-14
Nov 12, 2026ArrivedRochesterBoston-17
Nov 11, 2026ArrivedRochesterBoston-28
Nov 10, 2026ArrivedRochesterBoston-32
Nov 9, 2026ArrivedRochesterBoston-26
Nov 8, 2026ArrivedRochesterBoston-26
Nov 7, 2026CancelledRochesterBostonNot availableNot available
Nov 6, 2026ArrivedRochesterBoston-31
Nov 5, 2026ArrivedRochesterBoston-27
Nov 4, 2026ArrivedRochesterBoston-29
Nov 3, 2026ArrivedRochesterBoston-27
Nov 2, 2026ArrivedRochesterBoston-28
Nov 1, 2026ArrivedRochesterBoston-31
Oct 30, 2026ArrivedNew YorkBuffalo39
Oct 29, 2026ArrivedNew YorkBuffalo-10
Oct 28, 2026ArrivedNew YorkBuffalo-8
Oct 27, 2026ArrivedNew YorkBuffalo-19
Oct 25, 2026ArrivedNew YorkBuffalo13
Oct 23, 2026ArrivedNew YorkBuffalo5
Oct 22, 2026ArrivedNew YorkBuffalo29
Oct 21, 2026ArrivedNew YorkBuffalo16
Oct 20, 2026ArrivedNew YorkBuffalo93
Oct 19, 2026ArrivedNew YorkBuffalo48
Oct 18, 2026ArrivedNew YorkBuffalo-10
Oct 16, 2026ArrivedNew YorkBuffalo27
Oct 15, 2026ArrivedNew YorkBuffalo51
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