United Airlines UA340 Flight status
According to Trip.com real-time data, the UA340 flight operated by United Airlines on Nov 11, 2026 is scheduled to fly from Boston (BOS) to San Francisco (SFO). The flight is expected to depart at 13:32 (local time in Boston, UTC-5) and land at 21:46 (local time in San Francisco, UTC-8)
Tue, Nov 10
Wed, Nov 11
Thu, Nov 12
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En route
Your flight has departed Boston and is expected to arrive in San Francisco at 21:46.
11h 14m
IAH
3h 1m
Check-in Counter
--
Boarding Gate
B28
Arrival Gate
E7
Baggage
9
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Scheduled
Your flight will depart on time.
11h 14m
IAH
3h 2m
Check-in Counter
--
Boarding Gate
B26
Arrival Gate
--
Baggage
9
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Scheduled
Your flight will depart on time.
11h 14m
IAH
2h 12m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
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United Airlines From £ 164
Search flights Information provided by VariFlight. Please refer to airport announcements for the most up-to-date information. You can also explore more flights from Boston to San Francisco or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
UA1977
|
Houston (HOU)
Boston (BOS)
Boston (BOS)
Scheduled: 12:25
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UA340 Aircraft Details
According to Trip.com real-time data, the UA340 flight flying from Boston to San Francisco on 11/11/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 1m. The aircraft is equipped with Up to 191 seats.
Boeing 737-900
Punctuality (Departure)
94
%
Punctuality (Arrival)
94
%
Early on average
19 minutes
Age
1m
Seats
Up to 191
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
76 cm
Legroom
45 cm
Seat width better than on 52% of flights
90°
Reclining Angle
--
Seat layout example
In-Flight Services
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
Legroom
52 cm
Seat width better than on 50% of flights
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
45 cm
Seat width better than on 52% of flights
100°
Reclining Angle
--
Seat layout example
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Flight History for UA340
Trip.com historical records show that the last UA340 flight departed on Tue, Nov 10 from BOS at approximately 13:38. This flight is expected to arrrive in SFO at 21:46.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Nov 6 | Boston (BOS) | San Francisco (SFO) | B39M | 13:55 | 21:33 | Arrived |
| Sat, Nov 7 | Boston (BOS) | San Francisco (SFO) | B39M | 13:34 | 21:27 | Arrived |
| Sun, Nov 8 | Boston (BOS) | San Francisco (SFO) | 739 | 13:34 | 21:16 | Arrived |
| Mon, Nov 9 | Boston (BOS) | San Francisco (SFO) | B39M | 13:42 | 21:31 | Arrived |
| Tue, Nov 10 | Boston (BOS) | San Francisco (SFO) | 738 | 13:38 | 21:46 | En route |
| Wed, Nov 11 | Boston (BOS) | San Francisco (SFO) | B39M | 13:32 | 21:46 | Scheduled |
| Thu, Nov 12 | Boston (BOS) | San Francisco (SFO) | 739 | 13:32 | 21:46 | Scheduled |
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UA340 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA340 is 94% (Late on average 14 minutes), and the on-time arrival rate is 94% (Early on average 19 minutes).
On-Time Departures
Punctuality
94
%
Late on average
14 minutes
Early
0
%
On time
94
%
30 mins late
6
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
94
%
Early on average
19 minutes
Early
94
%
On time
0
%
30 mins late
6
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
What is the current status of flight ua340?
Flight ua340 has not departed yet and is currently on schedule. Scheduled departure 13:32, arrival 21:46 (updated Nov 11, 2026).Is flight ua340 on time today?
Flight ua340 has not departed yet and is currently on schedule. Scheduled departure is 13:32, with arrival at 21:46. Recheck gate and timing before you head to the airport.Has flight ua340 departed yet? What is the departure time?
Flight ua340 is scheduled to depart at 13:32. The latest actual or estimated departure time is 13:32, and the current status is Scheduled (updated Nov 11, 2026).When is flight ua340 scheduled to arrive?
Flight ua340 is scheduled to arrive at 21:46. The latest estimated or actual arrival time is 21:46. Status is Scheduled as of Nov 11, 2026.What is the gate information for flight ua340?
For flight ua340, the departure terminal is B and the boarding gate is B26. Gate assignments can change at short notice—confirm on airport screens before heading to security.What is the baggage carousel number for flight ua340?
After arrival, baggage for flight ua340 is expected at carousel 9 in terminal T3. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight ua340 fly?
Flight ua340 is operated by United Airlines from Boston (BOS) to San Francisco (SFO). Typical flight time is about 11 hours 14 minutes; operating days may include Wednesday.How can I check real-time status for flight ua340?
Track flight ua340 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 ua340 is delayed or canceled, what should I do?
If ua340 is delayed or canceled, first confirm the latest status here (Scheduled, updated Nov 11, 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 ua340 departed from Boston?
Flight ua340 has not departed from Boston (BOS) yet and is currently on schedule for 13:32.
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Arrival Info: San Francisco Weather & Current Time
Mostly clear
|
12°C - 19°C
Weather forecast for your arrival day
-3 hour time difference
Time on arrival: Boston 00:46
|
San Francisco 21:46
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