United Airlines UA4390 Flight Status
According to Trip.com real-time data, the UA4390 flight operated by United Airlines on Oct 28, 2026 is scheduled to fly from Buffalo (BUF) to Portland (PWM). The flight is expected to depart at 06:00 and land at 10:07 .
Tue, Oct 27
Wed, Oct 28
Thu, Oct 29
Access more flight status info on the Trip.com app
Show more
Arrived
The flight has arrived 18m early
1h 39m
Check-in Counter
AREA 4
Boarding Gate
A5D
Arrival Gate
3
Baggage
C
Need a flight from Buffalo to Portland?
United Airlines
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
4h 7m
IAD
1h 37m
Check-in Counter
--
Boarding Gate
11
Arrival Gate
3
Baggage
--
Need a flight from Buffalo to Portland?
United Airlines From MYR 677
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
4h 7m
IAD
1h
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
Need a flight from Buffalo to Portland?
United Airlines From MYR 677
Search flights Information provided by VariFlight. Please refer to airport announcements for the most up-to-date information.
Track the Previous Flight Status: Scheduled
UA4468
|
Washington D.C. (WAS)
Buffalo (BUF)
Buffalo (BUF)
Scheduled: 19:04
fake text
Track incoming flight status with our app
Show more
UA4390 Aircraft Details
According to Trip.com real-time data, the UA4390 flight flying from Buffalo to Portland on 10/28/2026 is operated by the aircraft model Bombardier CRJ-550. This aircraft has been in service for 21y. The aircraft is equipped with 50 seats.
Bombardier CRJ-550
Punctuality (Departure)
100
%
Punctuality (Arrival)
100
%
Early on average
2 minutes
Age
21y
Seats
50
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
79 cm
Legroom
44 cm
Seat width
100°
Reclining Angle
--
Seat layout example
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
--
Seat layout example
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
Legroom
44 cm
Seat width
100°
Reclining Angle
--
Seat layout example
See more amenities and seat info in the app
Show more
Recent Flight History for UA4390
Trip.com historical records show that the last UA4390 flight departed on Tue, Oct 27 from BUF at approximately 08:39. This flight is expected to arrrive in PWM at 09:49.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Thu, Oct 22 | Washington D.C. (IAD) | Harrisburg (MDT) | CRJ7 | 22:46 | 23:11 | Arrived |
| Sat, Oct 24 | Washington D.C. (IAD) | Harrisburg (MDT) | CRJ7 | 22:45 | 23:12 | Arrived |
| Sun, Oct 25 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 06:11 | 10:09 | Arrived |
| Mon, Oct 26 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 06:07 | 10:00 | Arrived |
| Tue, Oct 27 | Washington D.C. (IAD) | Portland (PWM) | CRJ7 | 08:39 | 09:49 | Arrived |
| Wed, Oct 28 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 06:00 | 10:07 | Scheduled |
| Thu, Oct 29 | Buffalo (BUF) | Portland (PWM) | CRJ7 | 06:00 | 10:07 | Scheduled |
text.text............fake.row.text............text.........fake row
...text
Check upcoming flights with our app
Show more
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 100% (Late on average 9 minutes), and the on-time arrival rate is 100% (Early on average 2 minutes).
On-Time Departures
Punctuality
100
%
Late on average
9 minutes
Early
0
%
On time
100
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
100
%
Early on average
2 minutes
Early
50
%
On time
50
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
Need a flight from Buffalo to Portland?
- From Buffalo
- To Portland
- Return flights
More Cheap Flights
More Cheap Flights
More Cheap Flights
Recommended hotels in Portland
Hotels near Portland International Jetport
Hotels near Portland
9.3/10
114 Reviews
Embassy Suites by Hilton Portland Maine
0.38 km from the airport
MYR 488 MYR 586
8.5/10
99 Reviews
Hilton Garden Inn Portland-Airport
0.48 km from the airport
MYR 469 MYR 569
8.2/10
27 Reviews
Residence Inn by Marriott Portland Thompson's Point
1.53 km from the airport
MYR 507
7.9/10
22 Reviews
Moxy Portland Thompson's Point
1.55 km from the airport
MYR 421
9.6/10
85 Reviews
Inn by the Sea
2.28 km from city centre
MYR 1,172 MYR 1,297
10/10
41 Reviews
Evalina Hotel
0.67 km from city centre
MYR 1,737
9.2/10
58 Reviews
Blind Tiger Portland - Danforth Street
1.43 km from city centre
MYR 1,244
9.8/10
50 Reviews
The Weldon Hotel
0.99 km from city centre
MYR 1,004
Frequently Asked Questions
What is the current status of flight ua4390?
Flight ua4390 has not departed yet and is currently on schedule. Scheduled departure 06:00, arrival 10:07 (updated Oct 28, 2026).Is flight ua4390 on time today?
Flight ua4390 has not departed yet and is currently on schedule. Scheduled departure is 06:00, with arrival at 10:07. 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 06:00. The latest actual or estimated departure time is 06:00, and the current status is Scheduled (updated Oct 28, 2026).When is flight ua4390 scheduled to arrive?
Flight ua4390 is scheduled to arrive at 10:07. The latest estimated or actual arrival time is 10:07. Status is Scheduled as of Oct 28, 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 hours 7 minutes; operating days may include Wednesday.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 Oct 28, 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 06:00.
Portland Vacation Packages: Cheap Flights, Hotels & Tours
Hotels
Airport Transfers
Tours & Tickets
Car Rentals
Arrival Info: Portland Weather & Current Time
Mostly clear
|
-1°C - 11°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Buffalo 10:07
|
Portland 10:07
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Convenient & reliable booking and payment system