United Airlines UA4390 Flight Status
According to Trip.com real-time data, the UA4390 flight operated by United Airlines on Nov 13, 2026 is scheduled to fly from Buffalo (BUF) to Portland (PWM). The flight is expected to depart at 6:00 AM and land at 10:07 AM .
Thu, Nov 12
Fri, Nov 13
Sat, Nov 14
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Arrived
The flight has arrived 4m early
4h 7m
IAD
1h 24m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
2
Baggage
C
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Scheduled
Your flight will depart on time.
4h 7m
IAD
1h 37m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
3
Baggage
C
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Scheduled
Your flight will depart on time.
1h 39m
Check-in Counter
AREA 4
Boarding Gate
C26
Arrival Gate
--
Baggage
--
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Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Washington D.C. to Portland or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA4387
|
Burlington (BTV)
Washington D.C. (WAS)
Washington D.C. (WAS)
Scheduled: 9:27 PM
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UA4390 Aircraft Details
According to Trip.com real-time data, the UA4390 flight flying from Washington D.C. to Portland on 11/13/2026 is operated by the aircraft model Bombardier CRJ-550. This aircraft has been in service for 23y, 10m. The aircraft is equipped with 70 seats.
Bombardier CRJ-550
Punctuality (Departure)
89
%
Punctuality (Arrival)
100
%
Early on average
9 minutes
Age
23y, 10m
Seats
70
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
USB port
Seat Information
76 cm
Legroom
--
Seat width
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
USB port and power outlet
Seat Information
94 cm
Legroom
48 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
In-flight entertainment is unavailable
Wi-Fi is available
No power outlets are available
Seat Information
86 cm
Legroom
43 cm
Seat width
105°
Reclining Angle
--
Seat layout example
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Flight History for UA4390
Trip.com historical records show that the last UA4390 flight departed on Thu, Nov 12 from IAD at approximately 6:13 AM. This flight is expected to arrrive in PWM at 10:03 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Nov 8 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 6:19 AM | 10:05 AM | Arrived |
| Mon, Nov 9 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 6:11 AM | 10:02 AM | Arrived |
| Tue, Nov 10 | Washington D.C. (IAD) | Portland (PWM) | CRJ7 | 8:46 AM | 9:56 AM | Arrived |
| Wed, Nov 11 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 6:12 AM | 9:42 AM | Arrived |
| Thu, Nov 12 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 6:13 AM | 10:03 AM | Arrived |
| Fri, Nov 13 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 6:00 AM | 10:07 AM | Scheduled |
| Sat, Nov 14 | Washington D.C. (IAD) | Portland (PWM) | CRJ7 | 8:28 AM | 10:07 AM | Scheduled |
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UA4390 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4390 is 89% (Late on average 16 minutes), and the on-time arrival rate is 100% (Early on average 9 minutes).
On-Time Departures
Punctuality
89
%
Late on average
16 minutes
Early
0
%
On time
89
%
30 mins late
11
%
60 mins late
0
%
90 mins late
0
%
Canceled
0
%
On-Time Arrivals
Punctuality
100
%
Early on average
9 minutes
Early
84
%
On time
16
%
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 ua4390?
Flight ua4390 has not departed yet and is currently on schedule. Scheduled departure 6:00 AM, arrival 10:07 AM (updated Nov 13, 2026).Is flight ua4390 on time today?
Flight ua4390 has not departed yet and is currently on schedule. Scheduled departure is 6:00 AM, with arrival at 10:07 AM. Recheck gate and timing before you head to the airport.Has flight ua4390 departed yet? What is the departure time?
Flight ua4390 is scheduled to depart at 6:00 AM. The latest actual or estimated departure time is 6:00 AM, and the current status is Scheduled (updated Nov 13, 2026).When is flight ua4390 scheduled to arrive?
Flight ua4390 is scheduled to arrive at 10:07 AM. The latest estimated or actual arrival time is 10:07 AM. Status is Scheduled as of Nov 13, 2026.What route does flight ua4390 fly?
Flight ua4390 is operated by United Airlines from Buffalo (BUF) to Portland (PWM). Typical flight time is about 4 hours7 minutes; operating days may include Friday.How can I check real-time status for flight ua4390?
Track flight ua4390 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 ua4390 is delayed or canceled, what should I do?
If ua4390 is delayed or canceled, first confirm the latest status here (Scheduled, updated Nov 13, 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 ua4390 departed from Buffalo?
Flight ua4390 has not departed from Buffalo (BUF) yet and is currently on schedule for 6:00 AM.What is the seat configuration for flight ua4390?
Flight ua4390 usually flies a Bombardier CRJ-550 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Time on arrival: Washington D.C. 10:07
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