United Airlines
UA3866 Flight Status
According to Trip.com’s latest update for United Airlines flight UA3866 from Portland to Denver (PDX–DEN): Flight UA3866 landed safely at Denver International Airport (DEN) at 7:45 PM local time, arriving about 4m late.
Sat, Oct 3
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Arrived
The flight has arrived 4m late
Check-in Counter
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Boarding Gate
E7
Arrival Gate
B10
Baggage
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UA3866
UA3866 Aircraft Details
Plane model info unavailable
Punctuality (Departure)
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Punctuality (Arrival)
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Early on average
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Age
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Seats
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Flight Distance
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Economy
In-Flight Services
Unknown
Unknown
Unknown
Unknown
Seat Information
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Legroom
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Seat width
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Reclining Angle
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Seat layout example
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Flight History for UA3866
Check more records from Trip.com about UA3866 before and after today
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Sep 14 | Washington D.C. (IAD) | Washington D.C. (IAD) | 763 | 5:51 PM | 7:11 PM | Arrived |
| Sat, Sep 26 | New York (EWR) | New York (EWR) | -- | -- | Canceled | |
| Sat, Oct 3 | Portland (PDX) | Denver (DEN) | 319 | 4:37 PM | 7:45 PM | Arrived |
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Frequently Asked Questions
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What is the current status of flight ua3866?
Flight ua3866 has arrived (status: Arrived). Actual arrival 7:45 PM (updated Oct 7, 2026). -
Is flight ua3866 on time today?
Flight ua3866 has arrived (status: Arrived). Actual arrival was 7:45 PM; follow airport screens for the baggage carousel. -
Has flight ua3866 departed yet? What is the departure time?
Flight ua3866 is scheduled to depart at 4:00 PM. The latest actual or estimated departure time is 4:37 PM, and the current status is Arrived (updated Oct 7, 2026). -
When is flight ua3866 scheduled to arrive?
Flight ua3866 is scheduled to arrive at 7:41 PM. The latest estimated or actual arrival time is 7:45 PM. Status is Arrived as of Oct 7, 2026. -
How can I check real-time status for flight ua3866?
Track flight ua3866 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 ua3866 is delayed or canceled, what should I do?
If ua3866 is delayed or canceled, first confirm the latest status here (Arrived, updated Oct 7, 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 ua3866 departed from Portland?
Flight ua3866 has already left Portland and completed its journey. Departure was 4:37 PM; actual arrival 7:45 PM.
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