| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 18 | SFO | BOS | 22:58 | 07:54 |
Scheduled
|
Track > |
| Aug 17 | SFO | BOS | 23:56 | 07:56 |
Landed
|
Track > |
| Aug 16 | SFO | BOS | 23:31 | 07:24 |
Landed
|
Track > |
| Aug 15 | SFO | BOS | 23:30 | 07:32 |
Landed
|
Track > |
| Aug 14 | SFO | BOS | 23:49 | 07:50 |
Landed
|
Track > |
| Aug 13 | SFO | BOS | 23:40 | 07:33 |
Landed
|
Track > |
| Aug 12 | SFO | BOS | 23:42 | 08:03 |
Landed
|
Track > |
| Aug 11 | SFO | BOS | 23:34 | 07:34 |
Landed
|
Track > |
| Aug 10 | SFO | BOS | 00:01 | 07:56 |
Landed
|
Track > |
| Aug 09 | SFO | BOS | 00:32 | 09:02 |
Delayed
|
Track > |
United Airlines Flight UA1665 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 UA1665 flight from San Francisco to Boston?
The average flight time from San Francisco to Boston is 5 hours and 3 minutes. The flight distance is 4341 km / 2697 miles and the average flight speed is 846 km/h / 525 mph.
How many UA1665 flights are operated per week?
7 flights per week. The flight UA1665 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA1665 San Francisco to Boston?
The Airportia On-Time Performance Rating for United Airlines Flight UA1665 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1665 arriving at?
Flight UA1665 arrives at Boston Logan International Airport (BOS) Terminal B.
When was the latest UA1665 flight?
The latest flight took off on Wednesday, August 19th, 2026 with the flight status being Scheduled on 07:54.
How else can the flight UA1665 be referenced as?
This United Airlines flight can also be referenced as UAL1665, UA 1665, UAL 1665.
How often is flight UA1665 delayed?
On average, 10% of all UA1665 flights are delayed. The average delay is 61 minutes.
Can I get compensation for my delayed or cancelled UA1665 flight or baggage issues?
If your UA1665 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 UA1665 Flight Tracker above for more details.
Other flights departing from San Francisco SFO: UA436, AA2113, DL335, UA863
Other flights arriving at Boston BOS: UA2210, AS1598, B6198, B61034
All flights connecting San Francisco SFO to Boston BOS.
