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American Airlines

Is AA4521 delayed?

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

Arrived

18 min late

Updated

Departure

New York

LGA

Actual

Scheduled 19:59

Aug 23

Arrival

Buffalo

BUF

Actual

Scheduled 00:45

Aug 24

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

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

  • LGA → BUF

    15 min early

  • LGA → BUF

    16 min late

  • LGA → BUF

    13 min early

  • LGA → BUF

    1 min early

  • LGA → BUF

    2 min early
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
15
Arrivals over 15 minutes late
6
Observed cancellations
2
Observed occurrences
25

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

AA4521 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedNew YorkBuffalo
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-15
Sep 17, 2026ArrivedNew YorkBuffalo
16
Sep 16, 2026ArrivedNew YorkBuffalo
-13
Sep 15, 2026ArrivedNew YorkBuffalo
-1
Sep 14, 2026ArrivedNew YorkBuffalo
-2
Sep 13, 2026ArrivedNew YorkBuffalo
112
Sep 11, 2026ArrivedNew YorkBuffalo
41
Sep 10, 2026ArrivedNew YorkBuffalo
12
Sep 9, 2026ArrivedNew YorkBuffalo
-7
Sep 8, 2026ArrivedNew YorkBuffalo
-29
Sep 7, 2026ArrivedNew YorkBuffalo
0
Sep 6, 2026ArrivedNew YorkBuffalo
0
Sep 4, 2026ArrivedNew YorkBuffalo
52
Sep 3, 2026ArrivedNew YorkBuffalo
26
Sep 1, 2026CancelledNew YorkBuffaloNot available
Not available
Aug 23, 2026ArrivedNew YorkBuffalo
18
Aug 20, 2026CancelledNew YorkBuffaloNot available
Not available

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