American Airlines AA4121 Flight Status
According to the latest from Trip.com for American Airlines Flight AA4121 from Green Bay to Chicago (GRB–ORD): Great news — Flight AA4121 has landed safely at O'Hare Intl. Airport (ORD) at 6:34 AM local time, arriving about 41m early.
Sun, Sep 20
Mon, Sep 21
Tue, Sep 22
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Arrived
The flight has arrived 11m early
1h 32m
Check-in Counter
--
Boarding Gate
A2
Arrival Gate
K19
Baggage
31
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Arrived
The flight has arrived 41m early
1h 32m
Check-in Counter
--
Boarding Gate
A2
Arrival Gate
K19
Baggage
31
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Scheduled
Your flight will depart on time.
1h 32m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
L12
Baggage
--
Information provided by VariFlight For real-time updates, please check airport displays or contact your airline.
Flight.News
A Beach Hazards Statement is in effect for Chicago and Cook County through Tuesday evening, with dangerous currents and 7 to 10-foot waves creating life-threatening swimming conditions on Lake Michigan. Additionally, a Flood Watch remains in effect until 1 PM CDT this afternoon, as excessive rainfall may cause localized flooding in urban areas, roads, underpasses, and creeks.
Track the Previous Flight Status: Scheduled
AA3736
|
Chicago (CHI) 
Green Bay (GRB)
Green Bay (GRB)Scheduled: 12:13 AM
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AA4121 Aircraft Details
According to Trip.com real-time data, the AA4121 flight flying from Green Bay to Chicago on 9/21/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 21y, 8m. The aircraft is equipped with 76 seats.
Embraer 175
Punctuality (Departure)
83%
Punctuality (Arrival)
90%
Late on average
0 minutes
Age
21y, 8m
Seats
76
Flight Distance
--
Economy
Premium Economy
First
In-Flight Services
None
Inflight entertainment is available
Wi-Fi is available
USB port and power outlet
Seat Information
76 cm
Legroom
46 cm
Seat width better than on 73% of flights
96°
Reclining Angle
2-2
Seat layout example
In-Flight Services
None
Entertainment available, please bring your own device
Wi-Fi is available
No power outlets are available
Seat Information
86 cm
Legroom
46 cm
Seat width better than on 73% of flights
96°
Reclining Angle
--
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width
102°
Reclining Angle
1-2
Seat layout example
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Flight History for AA4121
Trip.com historical records show that the last AA4121 flight departed on Sun, Sep 20 from GRB at approximately 6:28 AM. This flight is expected to arrrive in ORD at 7:04 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Thu, Sep 17 | Green Bay (GRB) | Chicago (ORD) | E75L | 9:43 AM | 10:28 AM | Arrived |
| Fri, Sep 18 | Green Bay (GRB) | Chicago (ORD) | E75L | 6:15 AM | 6:56 AM | Arrived |
| Sat, Sep 19 | Green Bay (GRB) | Chicago (ORD) | E75L | 8:31 AM | 9:29 AM | Arrived |
| Sun, Sep 20 | Green Bay (GRB) | Chicago (ORD) | E75L | 6:28 AM | 7:04 AM | Arrived |
| Mon, Sep 21 | Green Bay (GRB) | Chicago (ORD) | E75L | 5:52 AM | 6:34 AM | Arrived |
| Tue, Sep 22 | Green Bay (GRB) | Chicago (ORD) | E75L | 5:43 AM | 7:15 AM | Scheduled |
| Wed, Sep 23 | Green Bay (GRB) | Chicago (ORD) | E75L | 5:43 AM | 7:15 AM | Scheduled |
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AA4121 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of AA4121 is 83% (Late on average 46 minutes), and the on-time arrival rate is 90% (Early on average 0 minutes).
On-Time Departures
Punctuality
83%
Late on average 46 minutes
Early
0%
On time
83%
30 mins late
7%
60 mins late
0%
90 mins late
10%
Canceled
0%
On-Time Arrivals
Punctuality
90%
Early on average 0 minutes
Early
87%
On time
3%
30 mins late
0%
60 mins late
0%
90 mins late
10%
Canceled
0%
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Cheap return flights to Green Bay
- Fri, Sep 25Chicago (CHI)Green Bay (GRB)
Delta Air LinesOne way39% off€279€170 - Tue, Sep 22Chicago (CHI)Green Bay (GRB) American AirlinesOne way22% off€279€217
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Frequently Asked Questions
What is the current status of flight aa4121?
Flight aa4121 has arrived (status: Arrived). Actual arrival 6:34 AM (updated Sep 21, 2026).Is flight aa4121 on time today?
Flight aa4121 has arrived (status: Arrived). Actual arrival was 6:34 AM; follow airport screens for the baggage carousel.Has flight aa4121 departed yet? What is the departure time?
Flight aa4121 is scheduled to depart at 5:43 AM. The latest actual or estimated departure time is 5:52 AM, and the current status is Arrived (updated Sep 21, 2026).When is flight aa4121 scheduled to arrive?
Flight aa4121 is scheduled to arrive at 7:15 AM. The latest estimated or actual arrival time is 6:34 AM. Status is Arrived as of Sep 21, 2026.What is the baggage carousel number for flight aa4121?
After arrival, baggage for flight aa4121 is expected at carousel 31 in terminal T3. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight aa4121 fly?
Flight aa4121 is operated by American Airlines from Green Bay (GRB) to Chicago (ORD). Typical flight time is about 1 hour32 minutes; operating days may include Monday.How can I check real-time status for flight aa4121?
Track flight aa4121 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight aa4121 is delayed or canceled, what should I do?
If aa4121 is delayed or canceled, first confirm the latest status here (Arrived, updated Sep 21, 2026). Contact American Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight aa4121 departed from Green Bay?
Flight aa4121 has already left Green Bay and completed its journey. Departure was 5:52 AM; actual arrival 6:34 AM.What is the seat configuration for flight aa4121?
Flight aa4121 usually flies a Embraer 175 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Chicago Weather & Current Time
Showers
|
16°C - 20°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Green Bay 07:15| Chicago 07:15
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