United Airlines UA3866 Flight Status
Status: Flight UA3866 Landed Safely | Delayed. According to Trip.com's latest status for United Airlines flight UA3866 from Washington D.C. to Washington D.C. (IAD-IAD): Landed: Dulles International Airport (IAD) at 19:11 (local time) Delay: Approximately 1h 11m late.
Mon, Sep 14
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Arrived
The flight has arrived 1h 11m late
Check-in Counter
AREA 4
Boarding Gate
R15
Arrival Gate
R15
Baggage
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Information provided by VariFlight For the latest updates, please refer to airport announcements or consult your airline.
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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Distance
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Economy
Onboard Amenities
Unknown
Unknown
Unknown
Unknown
Seating Plan
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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 Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Wed, Sep 2 | Houston (IAH) | Houston (IAH) | 738 | 05:22 | 05:45 | Arrived |
| Tue, Sep 8 | Houston (IAH) | Houston (IAH) | 319 | 15:21 | 16:34 | Arrived |
| Mon, Sep 14 | Washington D.C. (IAD) | Washington D.C. (IAD) | 763 | 17:51 | 19:11 | Arrived |
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Frequently Asked Questions
What is the current status of flight ua3866?
Flight ua3866 has arrived (status: Arrived). Actual arrival 19:11 (updated Sep 20, 2026).Is flight ua3866 on time today?
Flight ua3866 has arrived (status: Arrived). Actual arrival was 19:11; follow airport screens for the baggage carousel.Has flight ua3866 departed yet? What is the departure time?
Flight ua3866 is scheduled to depart at 16:30. The latest actual or estimated departure time is 17:51, and the current status is Arrived (updated Sep 20, 2026).When is flight ua3866 scheduled to arrive?
Flight ua3866 is scheduled to arrive at 18:00. The latest estimated or actual arrival time is 19:11. Status is Arrived as of Sep 20, 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 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 ua3866 departed from Washington D.C.?
Flight ua3866 has already left Washington D.C. and completed its journey. Departure was 17:51; actual arrival 19:11.
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