United Airlines UA4540 Flight Status
According to the latest from Trip.com for United Airlines Flight UA4540 from Chattanooga to Chicago (CHA–ORD): Great news — Flight UA4540 has landed safely at O'Hare Intl. Airport (ORD) at 6:41 AM local time, arriving about 18m early.
Wed, Oct 21
Thu, Oct 22
Fri, Oct 23
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Arrived
The flight has arrived 33m early
1h 59m
Check-in Counter
--
Boarding Gate
5
Arrival Gate
F21
Baggage
2
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Arrived
The flight has arrived 18m early
1h 59m
Check-in Counter
--
Boarding Gate
5
Arrival Gate
F20
Baggage
2
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United Airlines From JPY 76,110
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Scheduled
Your flight will depart on time.
1h 59m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
F25
Baggage
2
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United Airlines From JPY 76,110
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Chattanooga to Chicago or track other flights with our flight status tracker.
Track the Previous Flight Status: Landed at Chattanooga
UA4523
|
Chicago (CHI)
Chattanooga (CHA)
Chattanooga (CHA)
Scheduled: 12:10 AM
|
10m early
fake text
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UA4540 Aircraft Details
According to Trip.com real-time data, the UA4540 flight flying from Chattanooga to Chicago on 10/22/2026 is operated by the aircraft model Bombardier CRJ-550. This aircraft has been in service for 22y, 10m. The aircraft is equipped with 50 seats.
Bombardier CRJ-550
Punctuality (Departure)
80
%
Punctuality (Arrival)
93
%
Early on average
10 minutes
Age
22y, 10m
Seats
50
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Inflight entertainment is available
Unknown
USB port
Seat Information
79 cm
More legroom than on 20% of flights
44 cm
Seat width
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
USB port and power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width better than on 20% of flights
120°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
Legroom
44 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for UA4540
Trip.com historical records show that the last UA4540 flight departed on Wed, Oct 21 from CHA at approximately 6:07 AM. This flight is expected to arrrive in ORD at 6:26 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Oct 18 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:11 AM | 6:30 AM | Arrived |
| Mon, Oct 19 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:11 AM | 6:32 AM | Arrived |
| Tue, Oct 20 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:08 AM | 6:29 AM | Arrived |
| Wed, Oct 21 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:07 AM | 6:26 AM | Arrived |
| Thu, Oct 22 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:20 AM | 6:41 AM | Arrived |
| Fri, Oct 23 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:00 AM | 6:59 AM | Scheduled |
| Sat, Oct 24 | Chattanooga (CHA) | Chicago (ORD) | CRJ7 | 6:00 AM | 6:59 AM | Scheduled |
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UA4540 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4540 is 80% (Late on average 25 minutes), and the on-time arrival rate is 93% (Early on average 10 minutes).
On-Time Departures
Punctuality
80
%
Late on average
25 minutes
Early
0
%
On time
80
%
30 mins late
13
%
60 mins late
0
%
90 mins late
7
%
Canceled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
10 minutes
Early
87
%
On time
7
%
30 mins late
0
%
60 mins late
3
%
90 mins late
3
%
Canceled
0
%
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Frequently Asked Questions
What is the current status of flight ua4540?
Flight ua4540 has arrived (status: Arrived). Actual arrival 6:41 AM (updated Oct 22, 2026).Is flight ua4540 on time today?
Flight ua4540 has arrived (status: Arrived). Actual arrival was 6:41 AM; follow airport screens for the baggage carousel.Has flight ua4540 departed yet? What is the departure time?
Flight ua4540 is scheduled to depart at 6:00 AM. The latest actual or estimated departure time is 6:20 AM, and the current status is Arrived (updated Oct 22, 2026).When is flight ua4540 scheduled to arrive?
Flight ua4540 is scheduled to arrive at 6:59 AM. The latest estimated or actual arrival time is 6:41 AM. Status is Arrived as of Oct 22, 2026.What is the baggage carousel number for flight ua4540?
After arrival, baggage for flight ua4540 is expected at carousel 2 in terminal T2. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight ua4540 fly?
Flight ua4540 is operated by United Airlines from Chattanooga (CHA) to Chicago (ORD). Typical flight time is about 1 hour59 minutes; operating days may include Thursday.How can I check real-time status for flight ua4540?
Track flight ua4540 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 ua4540 is delayed or canceled, what should I do?
If ua4540 is delayed or canceled, first confirm the latest status here (Arrived, updated Oct 22, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight ua4540 departed from Chattanooga?
Flight ua4540 has already left Chattanooga and completed its journey. Departure was 6:20 AM; actual arrival 6:41 AM.What is the seat configuration for flight ua4540?
Flight ua4540 usually flies a Bombardier CRJ-550 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
Mostly clear
|
10°C - 22°C
Weather forecast for your arrival day
-1 hour time difference
Time on arrival: Chattanooga 07:41
|
Chicago 06:41
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