United Airlines UA1646 Flight status
According to Trip.com real-time data, the UA1646 flight operated by United Airlines on Oct 23, 2026 is scheduled to fly from San Francisco (SFO) to Baltimore (BWI). The flight is expected to depart at 22:57 (local time in San Francisco, UTC-7) and arrive at 06:39 (local time in Baltimore, UTC-4) .
Thu, Oct 22
Fri, Oct 23
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Scheduled
Your flight will depart on time.
5h 23m
Check-in Counter
--
Boarding Gate
E8
Arrival Gate
D16
Baggage
11
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Scheduled
Your flight will depart on time.
5h 23m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
11
Need a flight from San Francisco to Baltimore?
United Airlines From €183
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA504
|
Baltimore (BWI)
San Francisco (SFO)
San Francisco (SFO)
Scheduled: 21:41
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UA1646 Aircraft Details
According to Trip.com real-time data, the UA1646 flight from San Francisco to Baltimore on 10/23/2026 is operated using the aircraft model Boeing 737-900. This aircraft has been in service for 1y, 2m. The aircraft has 179 seats.
Boeing 737-900
Punctuality (Departure)
56
%
Punctuality (Arrival)
88
%
Early on average
1 minute
Age
1y, 2m
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
None
Entertainment available, please bring your own device
Wi-Fi is available
Power outlet
Seat Information
--
Legroom
--
Seat width
105°
Reclining Angle
--
Seat layout example
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Flight History for UA1646
Trip.com historical records show that the last UA1646 flight departed on Thu, Oct 22 from SFO at approximately 22:57. This flight is expected to arrrive in BWI at 06:39.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Thu, Oct 15 | San Francisco (SFO) | Baltimore (BWI) | B39M | 23:11 | 07:05 | Arrived |
| Fri, Oct 16 | San Francisco (SFO) | Baltimore (BWI) | B39M | 23:04 | 07:01 | Arrived |
| Sun, Oct 18 | San Francisco (SFO) | Baltimore (BWI) | B39M | 00:38 | 08:16 | Arrived |
| Mon, Oct 19 | San Francisco (SFO) | Baltimore (BWI) | B39M | 23:11 | 06:53 | Arrived |
| Wed, Oct 21 | San Francisco (SFO) | Baltimore (BWI) | B739 | -- | -- | Canceled |
| Thu, Oct 22 | San Francisco (SFO) | Baltimore (BWI) | B39M | 22:57 | 06:39 | Scheduled |
| Fri, Oct 23 | San Francisco (SFO) | Baltimore (BWI) | B39M | 22:57 | 06:39 | Scheduled |
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UA1646 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA1646 is 56% (Late on average 36 minutes), and the on-time arrival rate is 88% (Early on average 1 minute).
On-Time Departures
Punctuality
56
%
Late on average
36 minutes
Early
0
%
On time
56
%
30 mins late
31
%
60 mins late
0
%
90 mins late
13
%
Cancelled
0
%
On-Time Arrivals
Punctuality
88
%
Early on average
1 minute
Early
63
%
On time
25
%
30 mins late
13
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
What is the current status of flight ua1646?
Flight ua1646 has not departed yet and is currently on schedule. Scheduled departure 22:57, arrival 07:20 (updated Oct 23, 2026).Is flight ua1646 on time today?
Flight ua1646 has not departed yet and is currently on schedule. Scheduled departure is 22:57, with arrival at 07:20. Recheck gate and timing before you head to the airport.Has flight ua1646 departed yet? What is the departure time?
Flight ua1646 is scheduled to depart at 22:57. The latest actual or estimated departure time is 22:57, and the current status is Scheduled (updated Oct 23, 2026).When is flight ua1646 scheduled to arrive?
Flight ua1646 is scheduled to arrive at 07:20. The latest estimated or actual arrival time is 06:39. Status is Scheduled as of Oct 23, 2026.What route does flight ua1646 fly?
Flight ua1646 is operated by United Airlines from San Francisco (SFO) to Baltimore (BWI). Typical flight time is about 5 hours 23 minutes; operating days may include Friday.How can I check real-time status for flight ua1646?
Track flight ua1646 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 ua1646 is delayed or canceled, what should I do?
If ua1646 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 23, 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 ua1646 departed from San Francisco?
Flight ua1646 has not departed from San Francisco (SFO) yet and is currently on schedule for 22:57.What is the seat configuration for flight ua1646?
Flight ua1646 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: Baltimore Weather & Current Time
Clear
|
9°C - 20°C
Weather forecast for your arrival day
3 hour time difference
Time on arrival: San Francisco 03:39
|
Baltimore 06:39
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