United Airlines UA421 Flight Status
According to Trip.com real-time data, the UA421 flight operated by United Airlines on Oct 30, 2026 is scheduled to fly from Denver (DEN) to Chicago (ORD). The flight is expected to depart at 4:10 PM (local time in Denver, UTC-6) and land at 12:01 AM (local time in Chicago, UTC-5) .
Thu, Oct 29
Fri, Oct 30
Sat, Oct 31
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Returning to airport
This flight is returning to the departure airport.
6h 51m
IAD
3h 5m
Check-in Counter
7,8
Boarding Gate
B18
Arrival Gate
C21
Baggage
3
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Scheduled
Your flight will depart on time.
6h 51m
IAD
1h 46m
Check-in Counter
7,8
Boarding Gate
B25
Arrival Gate
B11
Baggage
3
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United Airlines From TWD 4,229
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Scheduled
Your flight will depart on time.
6h 51m
IAD
1h 17m
Check-in Counter
7,8
Boarding Gate
--
Arrival Gate
--
Baggage
3
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United Airlines From TWD 4,229
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 Denver to Chicago or track other flights with our flight status tracker.
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UA1587
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Washington D.C. (WAS)
Houston (HOU)
Houston (HOU)
Scheduled: 8:58 PM
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UA421 Aircraft Details
According to Trip.com real-time data, the UA421 flight flying from Denver to Chicago on 10/30/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 13y, 11m. The aircraft is equipped with 179 seats.
Boeing 737-900
Punctuality (Departure)
73
%
Punctuality (Arrival)
97
%
Early on average
8 minutes
Age
13y, 11m
Seats
179
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Live TV
Wi-Fi is available
Power outlet
Seat Information
76 cm
More legroom than on 3% of flights
--
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Meal included
Live TV
Wi-Fi is available
Power outlet
Seat Information
94 cm
More legroom than on 4% of flights
--
Seat width
120°
Reclining Angle
2-2
Seat layout example
In-Flight Services
None
Live TV
Wi-Fi is available
Power outlet
Seat Information
86 cm
More legroom than on 19% of flights
44 cm
Seat width better than on 49% of flights
105°
Reclining Angle
3-3
Seat layout example
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Flight History for UA421
Check more records from Trip.com about UA421 before and after today
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Oct 25 | Denver (DEN) | Chicago (ORD) | A21N | 4:18 PM | 11:30 PM | Arrived |
| Mon, Oct 26 | Denver (DEN) | Chicago (ORD) | A21N | 4:18 PM | 11:58 PM | Arrived |
| Tue, Oct 27 | Denver (DEN) | Chicago (ORD) | B38M | 5:16 PM | 11:26 PM | Arrived |
| Wed, Oct 28 | Denver (DEN) | Chicago (ORD) | A21N | 4:19 PM | 11:29 PM | Arrived |
| Thu, Oct 29 | Denver (DEN) | Chicago (ORD) | B39M | 4:19 PM | 11:37 PM | Returning to airport |
| Fri, Oct 30 | Denver (DEN) | Chicago (ORD) | 739 | 4:10 PM | 12:01 AM | Scheduled |
| Sat, Oct 31 | Denver (DEN) | Chicago (ORD) | 739 | 4:10 PM | 12:01 AM | Scheduled |
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UA421 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA421 is 73% (Late on average 25 minutes), and the on-time arrival rate is 97% (Early on average 8 minutes).
On-Time Departures
Punctuality
73
%
Late on average
25 minutes
Early
0
%
On time
73
%
30 mins late
17
%
60 mins late
7
%
90 mins late
3
%
Canceled
0
%
On-Time Arrivals
Punctuality
97
%
Early on average
8 minutes
Early
73
%
On time
23
%
30 mins late
0
%
60 mins late
0
%
90 mins late
3
%
Canceled
0
%
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Frequently Asked Questions
What is the current status of flight ua421?
Flight ua421 has not departed yet and is currently on schedule. Scheduled departure 4:10 PM, arrival 12:01 AM (updated Oct 30, 2026).Is flight ua421 on time today?
Flight ua421 has not departed yet and is currently on schedule. Scheduled departure is 4:10 PM, with arrival at 12:01 AM. 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 4:10 PM. The latest actual or estimated departure time is 4:10 PM, and the current status is Scheduled (updated Oct 30, 2026).When is flight ua421 scheduled to arrive?
Flight ua421 is scheduled to arrive at 12:01 AM. The latest estimated or actual arrival time is 12:01 AM. Status is Scheduled as of Oct 30, 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 hours51 minutes; operating days may include Friday.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 30, 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 4:10 PM.What is the seat configuration for flight ua421?
Flight ua421 usually flies a Boeing 737-900 with seat layout 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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