| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 10 | BOS | SFO | 17:29 | 20:51 |
Delayed
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| Aug 09 | BOS | SFO | 17:34 | 20:12 |
Landed Late
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| Aug 08 | BOS | SFO | 17:58 | 20:46 |
Delayed
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| Aug 07 | BOS | SFO | 17:06 | 20:05 |
Landed Late
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| Aug 06 | BOS | SFO | 18:45 | 21:26 |
Delayed
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| Aug 05 | BOS | SFO | 18:24 | 21:11 |
Delayed
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| Aug 04 | BOS | SFO | 16:45 | 19:32 |
Landed
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| Aug 03 | BOS | SFO | 18:44 | 21:26 |
Delayed
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| Aug 02 | BOS | SFO | 18:17 | 21:07 |
Delayed
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| Aug 01 | BOS | SFO | 16:32 | 19:25 |
Landed
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United Airlines Flight UA512 connects Boston, United States to San Francisco, United States, taking off from Boston Logan International Airport BOS and landing at San Francisco International Airport SFO.
How long is the UA512 flight from Boston to San Francisco?
The average flight time from Boston to San Francisco is 5 hours and 50 minutes. The flight distance is 4341 km / 2697 miles and the average flight speed is 743 km/h / 462 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA512 Boston to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA512 is 4.1/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA512 arriving at?
Flight UA512 arrives at San Francisco International Airport (SFO) Terminal 2.
When was the latest UA512 flight?
The latest flight took off on Tuesday, August 11th, 2026 with the flight status being En-Route on 20:51.
How else can the flight UA512 be referenced as?
This United Airlines flight can also be referenced as UAL512, UA0512, UA 512, UAL 512.
How often is flight UA512 delayed?
On average, 80% of all UA512 flights are delayed. The average delay is 65 minutes.
Can I get compensation for my delayed or cancelled UA512 flight or baggage issues?
If your UA512 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 UA512 Flight Tracker above for more details.
Flight UA512 is code-shared by 3 airlines using the flight numbers AZ4374, NZ9025, VA8580
Other flights departing from Boston BOS: YX5680, DL2646, YX5619, 9K5331
Other flights arriving at San Francisco SFO: AA3141, UA1656, UA448, UA2657
All flights connecting Boston BOS to San Francisco SFO.