| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 28 | SFO | ONT | 08:47 | 09:45 |
Landed
|
Track > |
| Apr 27 | SFO | ONT | 08:40 | 09:37 |
Landed
|
Track > |
| Apr 26 | SFO | ONT | 08:44 | 09:42 |
Landed
|
Track > |
| Apr 24 | SFO | ONT | 08:34 | 09:31 |
Landed
|
Track > |
| Apr 23 | SFO | ONT | 09:15 | 10:10 |
Landed
|
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| Apr 21 | SFO | ONT | 08:36 | 09:38 |
Landed
|
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| Apr 20 | SFO | ONT | 09:03 | 10:01 |
Landed
|
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| Apr 19 | SFO | ONT | 08:34 | 09:36 |
Landed
|
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| Apr 17 | SFO | ONT | 12:22 | 09:56 |
Unknown
|
Track > |
| Apr 16 | SFO | ONT | 08:40 | 09:38 |
Landed
|
Track > |
United Airlines Flight UA1503 connects San Francisco, United States to Ontario, United States, taking off from San Francisco International Airport SFO and landing at Ontario International Airport ONT.
How long is the UA1503 flight from San Francisco to Ontario?
The average flight time from San Francisco to Ontario is 58 minutes. The flight distance is 585 km / 363 miles and the average flight speed is 581 km/h / 361 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1503 San Francisco to Ontario?
The Airportia On-Time Performance Rating for United Airlines Flight UA1503 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1503 arriving at?
Flight UA1503 arrives at Ontario International Airport (ONT) Terminal 2.
When was the latest UA1503 flight?
The latest flight took off on Tuesday, April 28th, 2026 with the flight status being Landed on 09:45.
How else can the flight UA1503 be referenced as?
This United Airlines flight can also be referenced as UAL1503, UA 1503, UAL 1503.
How often is flight UA1503 delayed?
On average, 20% of all UA1503 flights are delayed. The average delay is 9 minutes.
Can I get compensation for my delayed or cancelled UA1503 flight or baggage issues?
If your UA1503 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 UA1503 Flight Tracker above for more details.
Flight UA1503 is code-shared by 1 airline using the flight number AC4423
Other flights departing from San Francisco SFO: UA5747, UA1351, UA754, UA2363
Other flights arriving at Ontario ONT: F91405, K4916, DL475, OO273
All flights connecting San Francisco SFO to Ontario ONT.