United Airlines UA255 Flight Status
According to Trip.com real-time data, the UA255 flight operated by United Airlines on Sep 21, 2026 is scheduled to fly from Denver (DEN) to Boise (BOI). The flight is expected to depart at 07:40 and land at 09:12 .
Sun, Sep 20
Mon, Sep 21
Tue, Sep 22
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Arrived
The flight has arrived 7m early
1h 55m
Check-in Counter
7,8
Boarding Gate
B27
Arrival Gate
B11
Baggage
1
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Scheduled
Your flight will depart on time.
1h 55m
Check-in Counter
7,8
Boarding Gate
B9
Arrival Gate
--
Baggage
1
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Scheduled
Your flight will depart on time.
1h 55m
Check-in Counter
7,8
Boarding Gate
B8
Arrival Gate
--
Baggage
1
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA2201
|
Nashville (BNA) 
Denver (DEN)
Denver (DEN)Scheduled: 19:28
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UA255 Aircraft Details
According to Trip.com real-time data, the UA255 flight flying from Denver to Boise on 9/21/2026 is operated by the aircraft model Airbus A319. This aircraft has been in service for 20y, 8m. The aircraft is equipped with 128 seats.
Airbus A319
Punctuality (Departure)
93%
Punctuality (Arrival)
100%
Early on average
9 minutes
Age
20y, 8m
Seats
128
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
On-demand entertainment
Wi-Fi (additional charge)
Unknown
Seat Information
76 cm
More legroom than on 6% of flights
--
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
94 cm
Legroom
--
Seat width
120°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Entertainment available, please bring your own device
Wi-Fi is available
Power outlet
Seat Information
86 cm
Legroom
45 cm
Seat width better than on 56% of flights
105°
Reclining Angle
3-3
Seat layout example
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Flight History for UA255
Trip.com historical records show that the last UA255 flight departed on Sun, Sep 20 from DEN at approximately 07:52. This flight is expected to arrrive in BOI at 09:28.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Wed, Sep 16 | Denver (DEN) | Boise (BOI) | 319 | 07:48 | 09:21 | Arrived |
| Thu, Sep 17 | Denver (DEN) | Boise (BOI) | 319 | 07:53 | 09:21 | Arrived |
| Fri, Sep 18 | Denver (DEN) | Boise (BOI) | 319 | 07:50 | 09:18 | Arrived |
| Sat, Sep 19 | Denver (DEN) | Boise (BOI) | 738 | 07:50 | 09:15 | Arrived |
| Sun, Sep 20 | Denver (DEN) | Boise (BOI) | 319 | 07:52 | 09:28 | Arrived |
| Mon, Sep 21 | Denver (DEN) | Boise (BOI) | 319 | 07:40 | 09:12 | Scheduled |
| Tue, Sep 22 | Denver (DEN) | Boise (BOI) | 319 | 07:40 | 09:35 | Scheduled |
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UA255 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA255 is 93% (Late on average 13 minutes), and the on-time arrival rate is 100% (Early on average 9 minutes).
On-Time Departures
Punctuality
93%
Late on average 13 minutes
Early
0%
On time
93%
30 mins late
7%
60 mins late
0%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
100%
Early on average 9 minutes
Early
87%
On time
13%
30 mins late
0%
60 mins late
0%
90 mins late
0%
Canceled
0%
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Frequently Asked Questions
What is the current status of flight ua255?
Flight ua255 has not departed yet and is currently on schedule. Scheduled departure 07:40, arrival 09:35 (updated Sep 21, 2026).Is flight ua255 on time today?
Flight ua255 has not departed yet and is currently on schedule. Scheduled departure is 07:40, with arrival at 09:35. Recheck gate and timing before you head to the airport.Has flight ua255 departed yet? What is the departure time?
Flight ua255 is scheduled to depart at 07:40. The latest actual or estimated departure time is 07:40, and the current status is Scheduled (updated Sep 21, 2026).When is flight ua255 scheduled to arrive?
Flight ua255 is scheduled to arrive at 09:35. The latest estimated or actual arrival time is 09:12. Status is Scheduled as of Sep 21, 2026.What route does flight ua255 fly?
Flight ua255 is operated by United Airlines from Denver (DEN) to Boise (BOI). Typical flight time is about 1 hour55 minutes; operating days may include Monday.How can I check real-time status for flight ua255?
Track flight ua255 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 ua255 is delayed or canceled, what should I do?
If ua255 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 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 ua255 departed from Denver?
Flight ua255 has not departed from Denver (DEN) yet and is currently on schedule for 07:40.What is the seat configuration for flight ua255?
Flight ua255 usually flies a Airbus A319 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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Arrival Info: Boise Weather & Current Time
Clear
|
14°C - 26°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Denver 09:35| Boise 09:35
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