| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 31 | ONT | SFO | 19:17 | 20:18 |
Landed
|
Track > |
| Jul 30 | ONT | SFO | 19:53 | 20:55 |
Delayed
|
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| Jul 29 | ONT | SFO | 18:52 | 19:48 |
Landed
|
Track > |
| Jul 28 | ONT | SFO | 18:57 | 19:53 |
Landed
|
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| Jul 27 | ONT | SFO | 19:08 | 20:14 |
Landed
|
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| Jul 25 | ONT | SFO | 20:53 | 20:06 |
En-Route
|
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| Jul 24 | ONT | SFO | 21:39 | 20:06 |
Unknown
|
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| Jul 23 | ONT | SFO | 19:30 | 20:26 |
Landed Late
|
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| Jul 22 | ONT | SFO | 18:48 | 19:48 |
Landed
|
Track > |
| Jul 21 | ONT | SFO | 19:08 | 20:09 |
Landed
|
Track > |
United Airlines Flight UA1603 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 UA1603 flight from Ontario to San Francisco?
The average flight time from Ontario to San Francisco is 59 minutes. The flight distance is 585 km / 363 miles and the average flight speed is 552 km/h / 343 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1603 Ontario to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA1603 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1603 arriving at?
Flight UA1603 arrives at San Francisco International Airport (SFO) Terminal 2.
When was the latest UA1603 flight?
The latest flight took off on Friday, August 1st, 2025 with the flight status being Landed on 20:18.
How else can the flight UA1603 be referenced as?
This United Airlines flight can also be referenced as UAL1603, UA 1603, UAL 1603.
How often is flight UA1603 delayed?
On average, 50% of all UA1603 flights are delayed. The average delay is 18 minutes.
Can I get compensation for my delayed or cancelled UA1603 flight or baggage issues?
If your UA1603 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 UA1603 Flight Tracker above for more details.
Flight UA1603 is code-shared by 2 airlines using the flight numbers AC4112, CM2528
Other flights departing from Ontario ONT: WN735, WN1837, WN3377, WN4144
Other flights arriving at San Francisco SFO: UA1126, UA2725, UA362, WN3633
All flights connecting Ontario ONT to San Francisco SFO.
