| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 05 | SFO | BOS | 16:31 | 00:10 |
Landed
|
Track > |
| Jan 04 | SFO | BOS | 17:09 | 00:51 |
Landed
|
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| Jan 03 | SFO | BOS | 16:44 | 00:36 |
Landed
|
Track > |
| Jan 02 | SFO | BOS | 16:38 | 00:29 |
Landed
|
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| Dec 31 | SFO | BOS | 16:19 | 00:12 |
Landed
|
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| Dec 30 | SFO | BOS | 16:37 | 00:45 |
Landed
|
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| Dec 29 | SFO | BOS | 16:20 | 00:44 |
Landed
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| Dec 28 | SFO | BOS | 16:20 | 00:43 |
Landed
|
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| Dec 27 | SFO | BOS | 16:49 | 00:40 |
Landed
|
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| Dec 26 | SFO | BOS | 17:59 | 01:37 |
Landed Late
|
Track > |
United Airlines Flight UA1623 connects San Francisco, United States to Boston, United States, taking off from San Francisco International Airport SFO and landing at Boston Logan International Airport BOS.
How long is the UA1623 flight from San Francisco to Boston?
The average flight time from San Francisco to Boston is 4 hours and 56 minutes. The flight distance is 4341 km / 2697 miles and the average flight speed is 882 km/h / 548 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1623 San Francisco to Boston?
The Airportia On-Time Performance Rating for United Airlines Flight UA1623 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1623 arriving at?
Flight UA1623 arrives at Boston Logan International Airport (BOS) Terminal B.
When was the latest UA1623 flight?
The latest flight took off on Tuesday, January 6th, 2026 with the flight status being Landed on 00:10.
How else can the flight UA1623 be referenced as?
This United Airlines flight can also be referenced as UAL1623, UA 1623, UAL 1623.
How often is flight UA1623 delayed?
On average, 10% of all UA1623 flights are delayed. The average delay is 44 minutes.
Can I get compensation for my delayed or cancelled UA1623 flight or baggage issues?
If your UA1623 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA1623 Flight Tracker above for more details.
Flight UA1623 is code-shared by 2 airlines using the flight numbers NZ9012, VA8307
Other flights departing from San Francisco SFO: UA1932, UA5664, UA5384, UA4742
Other flights arriving at Boston BOS: UA2106, AS1457, AA1743, B6582
All flights connecting San Francisco SFO to Boston BOS.