United Airlines UA4678 Flight Status
According to the latest from Trip.com for United Airlines Flight UA4678 from Boise to San Francisco (BOI–SFO): Great news — Flight UA4678 has landed safely at San Francisco Intl. Airport (SFO) at 6:40 AM local time, arriving about 38m early.
Mon, Sep 21
Tue, Sep 22
Wed, Sep 23
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Arrived
The flight has arrived 36m early
2h 3m
Check-in Counter
--
Boarding Gate
B11
Arrival Gate
F9
Baggage
F4
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Arrived
The flight has arrived 38m early
2h 3m
Check-in Counter
--
Boarding Gate
B11
Arrival Gate
F8
Baggage
F4
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Scheduled
Your flight will depart on time.
2h 3m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
E2
Baggage
4
Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Boise to San Francisco or track other flights with our flight status tracker.
Track the Previous Flight Status: Landed at Boise
UA5615
|
San Francisco (SFO) 
Boise (BOI)
Boise (BOI)Scheduled: 7:19 PM
|
22m early
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UA4678 Aircraft Details
According to Trip.com real-time data, the UA4678 flight flying from Boise to San Francisco on 9/22/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 7y, 4m. The aircraft is equipped with 70 seats.
Embraer 175
Punctuality (Departure)
93%
Punctuality (Arrival)
100%
Early on average
22 minutes
Age
7y, 4m
Seats
70
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Inflight entertainment is available
Unknown
Power outlet
Seat Information
79 cm
More legroom than on 20% of flights
46 cm
Seat width better than on 100% of flights
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Unknown
Power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width better than on 20% of flights
120°
Reclining Angle
1-2
Seat layout example
In-Flight Services
Snacks
Entertainment available, please bring your own device
Wi-Fi is available
Power outlet
Seat Information
86 cm
Legroom
46 cm
Seat width better than on 100% of flights
110°
Reclining Angle
2-2
Seat layout example
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Flight History for UA4678
Trip.com historical records show that the last UA4678 flight departed on Mon, Sep 21 from BOI at approximately 6:17 AM. This flight is expected to arrrive in SFO at 6:42 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Sep 18 | Boise (BOI) | San Francisco (SFO) | E75L | 6:26 AM | 6:45 AM | Arrived |
| Sat, Sep 19 | Boise (BOI) | San Francisco (SFO) | E75L | 6:28 AM | 6:48 AM | Arrived |
| Sun, Sep 20 | Boise (BOI) | San Francisco (SFO) | E75L | 6:32 AM | 6:57 AM | Arrived |
| Mon, Sep 21 | Boise (BOI) | San Francisco (SFO) | E75L | 6:17 AM | 6:42 AM | Arrived |
| Tue, Sep 22 | Boise (BOI) | San Francisco (SFO) | E75L | 6:17 AM | 6:40 AM | Arrived |
| Wed, Sep 23 | Boise (BOI) | San Francisco (SFO) | E75L | 6:15 AM | 7:18 AM | Scheduled |
| Thu, Sep 24 | Boise (BOI) | San Francisco (SFO) | E75L | 6:32 AM | 7:35 AM | Scheduled |
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UA4678 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4678 is 93% (Late on average 10 minutes), and the on-time arrival rate is 100% (Early on average 22 minutes).
On-Time Departures
Punctuality
93%
Late on average 10 minutes
Early
3%
On time
90%
30 mins late
7%
60 mins late
0%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
100%
Early on average 22 minutes
Early
93%
On time
7%
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 ua4678?
Flight ua4678 has arrived (status: Arrived). Actual arrival 6:40 AM (updated Sep 22, 2026).Is flight ua4678 on time today?
Flight ua4678 has arrived (status: Arrived). Actual arrival was 6:40 AM; follow airport screens for the baggage carousel.Has flight ua4678 departed yet? What is the departure time?
Flight ua4678 is scheduled to depart at 6:15 AM. The latest actual or estimated departure time is 6:17 AM, and the current status is Arrived (updated Sep 22, 2026).When is flight ua4678 scheduled to arrive?
Flight ua4678 is scheduled to arrive at 7:18 AM. The latest estimated or actual arrival time is 6:40 AM. Status is Arrived as of Sep 22, 2026.What is the baggage carousel number for flight ua4678?
After arrival, baggage for flight ua4678 is expected at carousel F4 in terminal T3. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight ua4678 fly?
Flight ua4678 is operated by United Airlines from Boise (BOI) to San Francisco (SFO). Typical flight time is about 2 hours3 minutes; operating days may include Tuesday.How can I check real-time status for flight ua4678?
Track flight ua4678 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 ua4678 is delayed or canceled, what should I do?
If ua4678 is delayed or canceled, first confirm the latest status here (Arrived, updated Sep 22, 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 ua4678 departed from Boise?
Flight ua4678 has already left Boise and completed its journey. Departure was 6:17 AM; actual arrival 6:40 AM.What is the seat configuration for flight ua4678?
Flight ua4678 usually flies a Embraer 175 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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Arrival Info: San Francisco Weather & Current Time
Mostly cloudy
|
15°C - 18°C
Weather forecast for your arrival day
-1 hour time difference
Time on arrival: Boise 07:40| San Francisco 06:40
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