United Airlines UA1666 Flight Status
According to Trip.com real-time data, the UA1666 flight operated by United Airlines on Sep 20, 2026 is scheduled to fly from Cincinnati (CVG) to Denver (DEN). The flight is expected to depart at 8:00 AM (local time in Cincinnati, UTC-4) and land at 8:28 AM (local time in Denver, UTC-6) .
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 10m early
Cincinnati(CVG)
8:30 AM
Scheduled: 8:00 AM, Sep 19
Cincinnati/Northern Kentucky International Airport 3h 2m
Check-in Counter
--
Boarding Gate
A13
Arrival Gate
A18
Baggage
14
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Scheduled
Your flight will depart on time.
Cincinnati(CVG)
8:00 AM
Scheduled: 8:00 AM, Sep 20
Cincinnati/Northern Kentucky International Airport 3h 2m
Check-in Counter
--
Boarding Gate
A13
Arrival Gate
A15
Baggage
18
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Scheduled
Your flight will depart on time.
Cincinnati(CVG)
8:00 AM
Scheduled: 8:00 AM, Sep 21
Cincinnati/Northern Kentucky International Airport 3h 2m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
18
Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Cincinnati to Denver or track other flights with our flight status tracker.
UA1666 Aircraft Details
According to Trip.com real-time data, the UA1666 flight flying from Cincinnati to Denver on 9/20/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 18y, 6m. The aircraft is equipped with 179 seats.
Boeing 737-900
Punctuality (Departure)
93%
Punctuality (Arrival)
100%
Early on average
23 minutes
Age
18y, 6m
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
Meal included
Live TV
Wi-Fi is available
Power outlet
Seat Information
86 cm
Legroom
43 cm
Seat width better than on 22% of flights
105°
Reclining Angle
3-3
Seat layout example
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Flight History for UA1666
Trip.com historical records show that the last UA1666 flight departed on Sat, Sep 19 from CVG at approximately 8:30 AM. This flight is expected to arrrive in DEN at 8:52 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:11 AM | 8:39 AM | Arrived |
| Wed, Sep 16 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:06 AM | 8:37 AM | Arrived |
| Thu, Sep 17 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:21 AM | 8:45 AM | Arrived |
| Fri, Sep 18 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:08 AM | 8:26 AM | Arrived |
| Sat, Sep 19 | Cincinnati (CVG) | Denver (DEN) | B39M | 8:30 AM | 8:52 AM | Arrived |
| Sun, Sep 20 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:00 AM | 8:28 AM | Scheduled |
| Mon, Sep 21 | Cincinnati (CVG) | Denver (DEN) | 739 | 8:00 AM | 9:02 AM | Scheduled |
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UA1666 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA1666 is 93% (Late on average 10 minutes), and the on-time arrival rate is 100% (Early on average 23 minutes).
On-Time Departures
Punctuality
93%
Late on average 10 minutes
Early
3%
On time
90%
30 mins late
7%
60 mins late
0%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
100%
Early on average 23 minutes
Early
97%
On time
3%
30 mins late
0%
60 mins late
0%
90 mins late
0%
Canceled
0%
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Cheap return flights to Cincinnati
- Tue, Sep 29Denver (DEN)Cincinnati (CVG)
Frontier AirlinesOne way47% offHK$1,052HK$556 - Sat, Oct 10Denver (DEN)Cincinnati (CVG) Frontier AirlinesOne way44% offHK$1,052HK$585
- Wed, Sep 30Denver (DEN)Cincinnati (CVG) Frontier AirlinesOne way44% offHK$1,052HK$587
- Wed, Oct 28Denver (DEN)Cincinnati (CVG) Frontier AirlinesOne way43% offHK$1,052HK$600
- Wed, Oct 21Denver (DEN)Cincinnati (CVG) Frontier AirlinesOne way42% offHK$1,052HK$612
- Wed, Oct 7Denver (DEN)Cincinnati (CVG) Frontier AirlinesOne way10% offHK$1,052HK$946
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Frequently Asked Questions
What is the current status of flight ua1666?
Flight ua1666 has not departed yet and is currently on schedule. Scheduled departure 8:00 AM, arrival 9:02 AM (updated Sep 20, 2026).Is flight ua1666 on time today?
Flight ua1666 has not departed yet and is currently on schedule. Scheduled departure is 8:00 AM, with arrival at 9:02 AM. Recheck gate and timing before you head to the airport.Has flight ua1666 departed yet? What is the departure time?
Flight ua1666 is scheduled to depart at 8:00 AM. The latest actual or estimated departure time is 8:00 AM, and the current status is Scheduled (updated Sep 20, 2026).When is flight ua1666 scheduled to arrive?
Flight ua1666 is scheduled to arrive at 9:02 AM. The latest estimated or actual arrival time is 8:28 AM. Status is Scheduled as of Sep 20, 2026.What route does flight ua1666 fly?
Flight ua1666 is operated by United Airlines from Cincinnati (CVG) to Denver (DEN). Typical flight time is about 3 hours2 minutes; operating days may include Sunday.How can I check real-time status for flight ua1666?
Track flight ua1666 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 ua1666 is delayed or canceled, what should I do?
If ua1666 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 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 ua1666 departed from Cincinnati?
Flight ua1666 has not departed from Cincinnati (CVG) yet and is currently on schedule for 8:00 AM.What is the seat configuration for flight ua1666?
Flight ua1666 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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Arrival Info: Denver Weather & Current Time
Partly clear
|
12°C - 27°C
Weather forecast for your arrival day
-2 hour time difference
Time on arrival: Cincinnati 10:28| Denver 08:28
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