United Airlines UA423 Flight status
According to Trip.com real-time data, the UA423 flight operated by United Airlines on Oct 21, 2026, scheduled to fly from Athens (ATH) to Chicago (ORD), has a change in flight status: the original departure time has been delayed, and the new departure time is 14:20 , with a new arrival time of 17:07 (local time in Chicago, UTC-5) . Trip.com will continue to provide the latest updates on this flight.
Tue, Oct 20
Wed, Oct 21
Thu, Oct 22
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Arrived
The flight has arrived 1h 49m late
11h 25m
Check-in Counter
144-150
Boarding Gate
A3
Arrival Gate
M30
Baggage
1
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United Airlines From MYR 7,084
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Delayed
Your flight is about 1h 45m late
11h 25m
Check-in Counter
144-150
Boarding Gate
A5
Arrival Gate
INTL
Baggage
--
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United Airlines From MYR 7,084
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Scheduled
Your flight will depart on time.
11h 25m
Check-in Counter
144-150
Boarding Gate
--
Arrival Gate
INTL
Baggage
--
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United Airlines From MYR 7,084
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Track the Previous Flight Status: Scheduled
UA422
|
Chicago (CHI)
Athens (ATH)
Athens (ATH)
Scheduled: 10:30
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UA423 Aircraft Details
According to Trip.com real-time data, the UA423 flight from Athens to Chicago on 10/21/2026 is operated using the aircraft model Boeing 787-10. This aircraft has been in service for 7y, 7m. The aircraft has 318 seats.
Boeing 787-10
Punctuality (Departure)
50
%
Punctuality (Arrival)
90
%
Late on average
1 minute
Age
7y, 7m
Seats
318
Flight Distance
--
Economy
Business
First
Premium Economy
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
79 cm
Legroom
44 cm
Seat width better than on 50% of flights
100°
Reclining Angle
3-3-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
97 cm
Legroom
48 cm
Seat width
140°
Reclining Angle
1-2-1
Seat layout example
In-Flight Services
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
198 cm
Legroom
52 cm
Seat width
180°
Reclining Angle
Fully reclinable
--
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
86 cm
Legroom
44 cm
Seat width better than on 50% of flights
120°
Reclining Angle
2-3-2
Seat layout example
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Flight History for UA423
Trip.com historical records show that the last UA423 flight departed on Tue, Oct 20 from ATH at approximately 15:28. This flight is expected to arrrive in ORD at 17:49.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Oct 16 | Athens (ATH) | Chicago (ORD) | B78X | 13:15 | 16:16 | Arrived |
| Sat, Oct 17 | Athens (ATH) | Chicago (ORD) | B78X | 12:53 | 15:07 | Arrived |
| Sun, Oct 18 | Athens (ATH) | Chicago (ORD) | B78X | 13:00 | 15:48 | Arrived |
| Mon, Oct 19 | Athens (ATH) | Chicago (ORD) | B78X | 13:27 | 16:27 | Arrived |
| Tue, Oct 20 | Athens (ATH) | Chicago (ORD) | B78X | 15:28 | 17:49 | Arrived |
| Wed, Oct 21 | Athens (ATH) | Chicago (ORD) | B78X | 14:20 | 17:07 | Delayed |
| Thu, Oct 22 | Athens (ATH) | Chicago (ORD) | B78X | 12:30 | 15:55 | Scheduled |
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UA423 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA423 is 50% (Late on average 39 minutes), and the on-time arrival rate is 90% (Late on average 1 minute).
On-Time Departures
Punctuality
50
%
Late on average
39 minutes
Early
0
%
On time
50
%
30 mins late
33
%
60 mins late
10
%
90 mins late
7
%
Cancelled
0
%
On-Time Arrivals
Punctuality
90
%
Late on average
1 minute
Early
63
%
On time
27
%
30 mins late
7
%
60 mins late
3
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
What is the current status of flight ua423?
Flight ua423 is delayed by about 105 minutes (status: Delayed). Latest estimated departure/arrival: 14:20 / 17:07 (updated Oct 21, 2026).Is flight ua423 on time today?
Flight ua423 is delayed by about 105 minutes (status: Delayed). The latest estimated departure/arrival times are 14:20 / 17:07. Watch for gate changes.Has flight ua423 departed yet? What is the departure time?
Flight ua423 is scheduled to depart at 12:35. The latest actual or estimated departure time is 14:20, and the current status is Delayed (updated Oct 21, 2026).When is flight ua423 scheduled to arrive?
Flight ua423 is scheduled to arrive at 16:00. The latest estimated or actual arrival time is 17:07. Status is Delayed as of Oct 21, 2026.What route does flight ua423 fly?
Flight ua423 is operated by United Airlines from Athens (ATH) to Chicago (ORD). Typical flight time is about 11 hours 25 minutes; operating days may include Wednesday.How can I check real-time status for flight ua423?
Track flight ua423 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 ua423 is delayed or canceled, what should I do?
If ua423 is delayed or canceled, first confirm the latest status here (Delayed, updated Oct 21, 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 ua423 departed from Athens?
Flight ua423 has not left Athens (ATH) yet and is delayed by about 105 minutes. Latest estimated departure: 14:20.What is the seat configuration for flight ua423?
Flight ua423 usually flies a Boeing 787-10 with seat layout 3-3-3. 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
Clear
|
10°C - 19°C
Weather forecast for your arrival day
-8 hour time difference
Time on arrival: Athens 23:55
|
Chicago 15:55
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