| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 14 | LAX | ONT | 09:32 | 09:57 |
Landed
|
Track > |
United Airlines Flight UA3921 connects Los Angeles, United States to Ontario, United States, taking off from Los Angeles International Airport LAX and landing at Ontario International Airport ONT.
How long is the UA3921 flight from Los Angeles to Ontario?
The average flight time from Los Angeles to Ontario is 25 minutes. The flight distance is 75 km / 47 miles and the average flight speed is 181 km/h / 112 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3921 Los Angeles to Ontario?
The Airportia On-Time Performance Rating for United Airlines Flight UA3921 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3921 arriving at?
Flight UA3921 arrives at Ontario International Airport (ONT) Terminal 2.
When was the latest UA3921 flight?
The latest flight took off on Friday, August 14th, 2026 with the flight status being Landed on 09:57.
How else can the flight UA3921 be referenced as?
This United Airlines flight can also be referenced as UAL3921, UA 3921, UAL 3921.
How often is flight UA3921 delayed?
On average, 0% of all UA3921 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled UA3921 flight or baggage issues?
If your UA3921 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 UA3921 Flight Tracker above for more details.
Other flights departing from Los Angeles LAX: WN2326, WN1483, WN1270, 3S617
Other flights arriving at Ontario ONT: AS1449, WN278, DL4070, WN2882
All flights connecting Los Angeles LAX to Ontario ONT.