This particular terminal is known for its convenient location and easy accessibility, making it a popular choice among travellers. Inside United airlines terminal Ontario airport, you can expect all of the amenities you need to make your trip as comfortable as possible. There are plenty of food options ranging from quick snacks to sit-down restaurants, so you won't have to worry about going hungry before your flight. Additionally, there are a number of shops selling souvenirs and other travel essentials like toiletries and reading material. All in all, the United Airlines terminal at Ontario Airport is a great option for anyone looking for hassle-free air travel in Southern California.