United Airlines UA599 Flight Status
According to Trip.com real-time data, the UA599 flight operated by United Airlines on Mar 11, 2026 is scheduled to fly from Washington D.C. (IAD) to Denver (DEN). The flight is expected to depart at 5:10 PM (local time in Washington D.C., UTC-5) and land at 6:37 PM (local time in Denver, UTC-7) .
Tue, Mar 10
Wed, Mar 11
Thu, Mar 12
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Scheduled
Your flight will depart on time.
4h 21m
Check-in Counter
AREA 4
Boarding Gate
D4
Arrival Gate
A24
Baggage
16
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Scheduled
Your flight will depart on time.
4h 21m
Check-in Counter
AREA 4
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
4h 21m
Check-in Counter
AREA 4
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline. If this is not your flight, you can browse more options for flights from Washington D.C. to Denver to find your schedule.
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UA1228
|
Las Vegas (LAS) 
Washington D.C. (WAS)
Washington D.C. (WAS)Scheduled: 3:31 PM
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UA599 Aircraft Details
According to Trip.com real-time data, the UA599 flight flying from Washington D.C. to Denver on 3/11/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 12y. The aircraft is equipped with 179 seats.
Boeing 737-900
Punctuality (Departure)
67%
Punctuality (Arrival)
93%
Early on average
9 minutes
Age
12y
Seats
179
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
--
Legroom
--
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Meal included
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
2-2
Seat layout example
In-Flight Services
None
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
86 cm
Legroom
43 cm
Seat width better than on 7% of flights
105°
Reclining Angle
3-3
Seat layout example
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Flight History for UA599
Trip.com historical records show that the last UA599 flight departed on Tue, Mar 10 from IAD at approximately 5:10 PM. This flight is expected to arrrive in DEN at 6:37 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Mar 6 | Washington D.C. (IAD) | Denver (DEN) | 739 | 7:30 PM | 9:03 PM | Arrived |
| Sat, Mar 7 | Washington D.C. (IAD) | Denver (DEN) | 739 | 5:57 PM | 7:23 PM | Arrived |
| Sun, Mar 8 | Washington D.C. (IAD) | Denver (DEN) | 739 | 5:26 PM | 6:51 PM | Arrived |
| Mon, Mar 9 | Washington D.C. (IAD) | Denver (DEN) | 739 | 5:43 PM | 7:01 PM | Arrived |
| Tue, Mar 10 | Washington D.C. (IAD) | Denver (DEN) | 739 | 5:10 PM | 6:37 PM | Scheduled |
| Wed, Mar 11 | Washington D.C. (IAD) | Denver (DEN) | 739 | 5:10 PM | 6:37 PM | Scheduled |
| Thu, Mar 12 | Washington D.C. (IAD) | Denver (DEN) | 738 | 5:10 PM | 7:31 PM | Scheduled |
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UA599 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA599 is 67% (Late on average 31 minutes), and the on-time arrival rate is 93% (Early on average 9 minutes).
On-Time Departures
Punctuality
67%
Late on average 31 minutes
Early
0%
On time
67%
30 mins late
23%
60 mins late
3%
90 mins late
7%
Canceled
1%
On-Time Arrivals
Punctuality
93%
Early on average 9 minutes
Early
77%
On time
17%
30 mins late
0%
60 mins late
3%
90 mins late
3%
Canceled
1%
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Arrival Info: Denver Weather & Current Time
Partly clear
|
1°C - 23°C
Weather forecast for your arrival day
-2 hour time difference
Time on arrival: Washington D.C. 20:37| Denver 18:37
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