United Airlines UA423 Flight Status
According to Trip.com's real-time data, the UA423 flight operated by United Airlines on Oct 21, 2026, scheduled to fly from Athens (ATH) to Chicago (ORD), has experienced a change in flight status: the originally scheduled 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 keep you updated on the latest flight status.
Tue, Oct 20
Wed, Oct 21
Thu, Oct 22
Access more flight status info on the Trip.com app
Show more
Arrived
The flight has arrived 1h 49m late
11h 25m
Check-in Counter
144-150
Boarding Gate
A3
Arrival Gate
M30
Baggage
1
Need a flight from Athens to Chicago?
United Airlines From IDR 31,425,900
Search flights Access more flight status info on the Trip.com app
Show more
Delayed
Your flight is about 1h 45m late.
11h 25m
Check-in Counter
144-150
Boarding Gate
A5
Arrival Gate
INTL
Baggage
--
Show more
Need a flight from Athens to Chicago?
United Airlines From IDR 31,425,900
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
11h 25m
Check-in Counter
144-150
Boarding Gate
--
Arrival Gate
INTL
Baggage
--
Show more
Need a flight from Athens to Chicago?
United Airlines From IDR 31,425,900
Search flights Information provided by VariFlight For the latest updates, please refer to airport announcements or consult your airline. You can also explore more flights from Athens to Chicago or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA422
|
Chicago (CHI)
Athens (ATH)
Athens (ATH)
Scheduled: 10:30
fake text
Track incoming flight status with our app
Show more
UA423 Aircraft Details
According to Trip.com real-time data, the UA423 flight flying from Athens to Chicago on 10/21/2026 is operated by the aircraft model Boeing 787-10. This aircraft has been in service for 7y, 7m. The aircraft is equipped with 318 seats.
Boeing 787-10
Punctuality (Departure)
50
%
Punctuality (Arrival)
90
%
Late on average
1 minute
Age
7y, 7m
Seats
318
Distance
--
Economy
Business
First
Premium Economy
Onboard Amenities
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seating Plan
79 cm
Legroom
44 cm
Seat width better than on 50% of flights
100°
Reclining Angle
3-3-3
Seat layout example
Onboard Amenities
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seating Plan
97 cm
Legroom
48 cm
Seat width
140°
Reclining Angle
1-2-1
Seat layout example
Onboard Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seating Plan
198 cm
Legroom
52 cm
Seat width
180°
Reclining Angle
Fully reclinable
--
Seat layout example
Onboard Amenities
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seating Plan
86 cm
Legroom
44 cm
Seat width better than on 50% of flights
120°
Reclining Angle
2-3-2
Seat layout example
See more amenities and seat info in the app
Show more
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 Type | 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 |
text.text............fake.row.text............text.........fake row
...text
Check upcoming flights with our app
Show more
UA423 On-Time Performance
Based on the average performance of this flight over the past 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
%
Need a flight from Athens to Chicago?
- From Athens
- To Chicago
- Return flights
More Cheap Flights
More Cheap Flights
More Cheap Flights
Recommended hotels in Chicago
Hotels near O'Hare International Airport
Hotels near Chicago
8.5/10
248 Reviews
Hilton Chicago O'Hare Airport
O'Hare | 0.1 km from the airport
3% off
IDR 3,252,807 IDR 3,166,711
9.2/10
108 Reviews
The Rose Hotel Chicago O’Hare, Tapestry Collection by Hilton
O'Hare | 2.83 km from the airport
IDR 3,995,383 IDR 3,944,264
8.9/10
73 Reviews
Sheraton Suites Chicago O'Hare
O'Hare | 2.88 km from the airport
IDR 3,193,616
8.5/10
109 Reviews
Sonesta Chicago O'Hare Airport Rosemont
2.93 km from the airport
13% off
IDR 2,851,923 IDR 2,467,183
9/10
52 Reviews
The St. Regis Chicago
Chicago Loop | 1.45 km from downtown
IDR 12,322,461
9.3/10
102 Reviews
Nobu Hotel Chicago
West Loop | 1.8 km from downtown
IDR 10,527,902
8.7/10
106 Reviews
Pendry Chicago
Chicago Loop | 1.04 km from downtown
IDR 10,648,974
9.2/10
106 Reviews
The Ritz-Carlton, Chicago
Streeterville | 2.27 km from downtown
IDR 8,563,841 IDR 8,458,912
Frequently Asked Questions
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 hours25 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.
Plan Your Chicago Trip: Cheap Flights, Hotels & Attractions
Hotels
Airport Transfers
Tours & Tickets
Car Rentals
Destination Info: Chicago Weather & Time
Clear
|
10°C - 19°C
Expected weather conditions upon arrival
-8 hour time difference
Time on arrival: Athens 23:55
|
Chicago 15:55
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Convenient & reliable booking and payment system