| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 20 | ONT | SFO | 22:32 | 20:56 |
En-Route
|
Track > |
| Sep 18 | ONT | SFO | 19:57 | 21:08 |
Landed
|
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| Sep 17 | ONT | SFO | 21:19 | 22:19 |
Delayed
|
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| Sep 13 | ONT | SFO | 20:07 | 21:04 |
Landed
|
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| Sep 07 | ONT | SFO | 19:51 | 20:48 |
Landed
|
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| Sep 04 | ONT | SFO | 19:35 | 20:31 |
Landed
|
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| Sep 03 | ONT | SFO | 20:27 | 21:28 |
Landed Late
|
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| Aug 31 | ONT | SFO | 21:42 | 22:42 |
Delayed
|
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| Aug 30 | ONT | SFO | 19:52 | 20:55 |
Landed
|
Track > |
| Aug 28 | ONT | SFO | 19:52 | 20:47 |
Landed
|
Track > |
United Airlines Flight UA1665 connects Ontario, United States to San Francisco, United States, taking off from Ontario International Airport ONT and landing at San Francisco International Airport SFO.
How long is the UA1665 flight from Ontario to San Francisco?
The average flight time from Ontario to San Francisco is 1 hour. The flight distance is 585 km / 363 miles and the average flight speed is 563 km/h / 350 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1665 Ontario to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA1665 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1665 arriving at?
Flight UA1665 arrives at San Francisco International Airport (SFO) Terminal 3.
When was the latest UA1665 flight?
The latest flight took off on Monday, September 21st, 2026 with the flight status being En-Route on 20:56.
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, 50% of all UA1665 flights are delayed. The average delay is 48 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.
Claim compensation for your flight delay or cancellation!
Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >
Flight UA1665 is code-shared by 2 airlines using the flight numbers AC4112, CM2528
Other flights departing from Ontario ONT: WN3185, AS594, AA1666, WN787
Other flights arriving at San Francisco SFO: BF710, UA1848, WN3455, UA2854
All flights connecting Ontario ONT to San Francisco SFO.