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American Airlines

Is AA4539 delayed?

No delay reported — AA4539 is expected in Chicago at 08:20 on Sep 26, 43 min early. Over its last 20 recorded arrivals, 2 landed more than 15 min late.

Estimated arrivalLast reported

43 min early

This update may be out of date.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

Update time unavailable

Departure

Pittsburgh

PIT

Actual

Scheduled 12:00

Sep 26

Arrival

Chicago

ORD

Estimated

Scheduled 09:03

Sep 26

Times shown in airport local time

Service date: · Scheduled departure date (UTC)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Not available
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

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

  • PIT → ORD

    45 min early

  • PIT → ORD

    44 min early

  • PIT → ORD

    22 min early

  • PIT → ORD

    47 min early

  • PIT → ORD

    9 min late
Flight history and details

Aug 27, 2026 — Sep 26, 2026

Observed arrivals
20
Arrivals over 15 minutes late
2
Observed cancellations
2
Observed occurrences
23

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

AA4539 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 25, 2026ArrivedPittsburghChicago
-45
Sep 24, 2026ArrivedPittsburghChicago
-44
Sep 23, 2026ArrivedPittsburghChicago
-22
Sep 22, 2026ArrivedPittsburghChicago
-47
Sep 21, 2026ArrivedPittsburghChicago
9
Sep 20, 2026ArrivedPittsburghChicago
47
Sep 19, 2026CancelledPittsburghChicagoNot available
Not available
Sep 18, 2026ArrivedPittsburghChicago
-13
Sep 17, 2026CancelledPittsburghChicagoNot available
Not available
Sep 16, 2026ArrivedPittsburghChicago
-5
Sep 15, 2026ArrivedPittsburghChicago
63
Sep 14, 2026ArrivedPittsburghChicago
-42
Sep 13, 2026ArrivedPittsburghChicago
-7
Sep 12, 2026ArrivedPittsburghChicago
-52
Sep 11, 2026ArrivedPittsburghChicago
-9
Sep 10, 2026ArrivedPittsburghChicago
-8
Sep 9, 2026ArrivedPittsburghChicago
-3
Sep 8, 2026ArrivedPittsburghChicago
-5
Sep 7, 2026ArrivedPittsburghChicago
-6
Sep 6, 2026ArrivedPittsburghChicago
6
Sep 5, 2026ArrivedPittsburghChicago
-12
Sep 4, 2026ArrivedPittsburghChicago
-28

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