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American Airlines

Is AA4439 delayed?

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

Arrived

9 min early

Official source · Updated

Departure

Boston

BOS

Actual

Scheduled 19:31

Sep 10

Arrival

Buffalo

BUF

Actual

Scheduled 00:48

Sep 11

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Recent arrivals

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

  • BOS → BUF

    138 min late

  • BOS → BUF

    103 min late

  • BOS → BUF

    6 min early

  • BOS → BUF

    93 min late

  • BOS → BUF

    36 min late
Flight history and details

Aug 22, 2026 — Sep 21, 2026

Observed arrivals
18
Arrivals over 15 minutes late
11
Observed cancellations
0
Observed occurrences
28

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

AA4439 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 20, 2026ArrivedBostonBuffalo
View this flight’s market
138
Sep 19, 2026ArrivedBostonBuffalo
103
Sep 18, 2026ArrivedBostonBuffalo
-6
Sep 17, 2026ArrivedBostonBuffalo
93
Sep 16, 2026ArrivedBostonBuffalo
36
Sep 15, 2026ArrivedBostonBuffalo
4
Sep 14, 2026ArrivedBostonBuffalo
0
Sep 11, 2026ArrivedBostonBuffalo
35
Sep 10, 2026ArrivedBostonBuffalo
-9
Sep 9, 2026ArrivedBostonBuffalo
42
Sep 8, 2026ArrivedBostonBuffalo
29
Sep 7, 2026ArrivedBostonBuffalo
-21
Sep 6, 2026ArrivedBostonBuffalo
104
Sep 5, 2026ArrivedBostonBuffalo
62
Sep 4, 2026ArrivedBostonBuffalo
47
Sep 3, 2026ArrivedBostonBuffalo
120
Sep 1, 2026ArrivedBostonBuffalo
-28
Aug 28, 2026ArrivedBostonBuffalo
-16

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