United Airlines
UA421 Flight Status
According to Trip.com latest record on status for United Airlines flight UA421 from Denver to Chicago (DEN-ORD): Flights for Oct 4, 2026 are scheduled, with the next departure slated for 15:45 from DEN and an expected arrival at 23:43 at ORD .
Sat, Oct 3
Sun, Oct 4
Mon, Oct 5
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In Flight
Your flight has departed Denver and is expected to arrive in Chicago at 23:12.
6h 46m
IAD
1h 1m
Check-in Counter
7,8
Boarding Gate
B23
Arrival Gate
C9
Baggage
3
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Scheduled
Your flight will depart on time.
6h 58m
IAD
1h 52m
Check-in Counter
7,8
Boarding Gate
B27
Arrival Gate
B11
Baggage
3
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Scheduled
Your flight will depart on time.
6h 47m
IAD
1h 7m
Check-in Counter
7,8
Boarding Gate
--
Arrival Gate
--
Baggage
3
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For real-time updates, follow airport displays or contact your airline directly.
UA421 Aircraft Specifications
According to Trip.com real-time data, the UA421 flight from Denver to Chicago on 10/4/2026 is operated using the aircraft model Airbus A321neo. This aircraft has been in service for 1y, 11m. The aircraft has 200 seats.
Airbus A321neo
On-Time Departure
80
%
On-Time Arrival
83
%
Avg. Delay
4 minutes
Aircraft Age
1y, 11m
Total Seats
200
Flight Distance
--
Economy
First
Premium Economy
Cabin Amenities
None
Unknown
Wi-Fi is available
USB port and power outlet
Seat Information
76 cm
More legroom than on 4% of flights
47 cm
Seat width better than on 69% of flights
100°
Reclining Angle
--
Seat layout example
Cabin Amenities
Meal included
Unknown
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
More legroom than on 2% of flights
53 cm
Seat width better than on 51% of flights
120°
Reclining Angle
--
Seat layout example
Cabin Amenities
Meal included
Unknown
Wi-Fi is available
USB port and power outlet
Seat Information
84 cm
Legroom
47 cm
Seat width better than on 67% of flights
110°
Reclining Angle
--
Seat layout example
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UA421 Flight History
Trip.com historical records show that the last UA421 flight departed on Sat, Oct 3 from DEN at approximately 16:24. This flight is expected to arrrive in ORD at 23:12.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 29 | Denver (DEN) | Chicago (ORD) | A21N | 15:57 | 23:39 | Arrived |
| Wed, Sep 30 | Denver (DEN) | Chicago (ORD) | A21N | 15:57 | 23:05 | Arrived |
| Thu, Oct 1 | San Jose (SJC) | Chicago (ORD) | A21N | 11:04 | 01:39 | Arrived |
| Fri, Oct 2 | Denver (DEN) | Chicago (ORD) | A21N | 16:01 | 23:19 | Arrived |
| Sat, Oct 3 | Denver (DEN) | Chicago (ORD) | A21N | 16:24 | 23:12 | In Flight |
| Sun, Oct 4 | Denver (DEN) | Chicago (ORD) | A21N | 15:45 | 23:43 | Scheduled |
| Mon, Oct 5 | Denver (DEN) | Chicago (ORD) | A21N | 15:45 | 23:32 | Scheduled |
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UA421 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA421 is 80% (Late on average 26 minutes), and the on-time arrival rate is 83% (Late on average 4 minutes).
On-Time Departures
Punctuality
80
%
Late on average
26 minutes
Early
0
%
On time
80
%
30 mins late
10
%
60 mins late
7
%
90 mins late
3
%
Cancelled
0
%
On-Time Arrivals
Punctuality
83
%
Late on average
4 minutes
Early
70
%
On time
13
%
30 mins late
7
%
60 mins late
3
%
90 mins late
7
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ua421?
Flight ua421 has not departed yet and is currently on schedule. Scheduled departure 15:45, arrival 23:43 (updated Oct 4, 2026). -
Is flight ua421 on time today?
Flight ua421 has not departed yet and is currently on schedule. Scheduled departure is 15:45, with arrival at 23:43. Recheck gate and timing before you head to the airport. -
Has flight ua421 departed yet? What is the departure time?
Flight ua421 is scheduled to depart at 15:45. The latest actual or estimated departure time is 15:45, and the current status is Scheduled (updated Oct 4, 2026). -
When is flight ua421 scheduled to arrive?
Flight ua421 is scheduled to arrive at 23:43. The latest estimated or actual arrival time is 23:43. Status is Scheduled as of Oct 4, 2026. -
What is the baggage carousel number for flight ua421?
After arrival, baggage for flight ua421 is expected at carousel 3 in terminal T1. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival. -
What route does flight ua421 fly?
Flight ua421 is operated by United Airlines from Denver (DEN) to Chicago (ORD). Typical flight time is about 6 hours 58 minutes; operating days may include Sunday. -
How can I check real-time status for flight ua421?
Track flight ua421 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 ua421 is delayed or canceled, what should I do?
If ua421 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 4, 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 ua421 departed from Denver?
Flight ua421 has not departed from Denver (DEN) yet and is currently on schedule for 15:45.
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