Stayed here one night to catch an early flight out the next morning. Took at least 20 minutes to check-in because there were only two people working the desk that evening (around 7pm). Then we were told the elevators were out (something about a power surge) which I didn't think would be a huge deal except this is a big... more

Not sure where the "good" reviewers stayed, it certainly wasn't at he Marriott Ontario Airport! This place was dated, dusty and moldy and might as well have been ON the railroad tracks, the room shook and it was so noisy, it was like an episode of I love Lucy. And if that wasn't enough, the hotel is directly in the... more

With the weather hotter than ever, this hotel was the perfect place to be. The room was so nice with plush beds and great amenities. The pool was perfect for cooling off and relaxing. We also went to a wedding there which was really nice and the servers were very organized. Food, awesome. more

Enjoyed my weekend stay!! Great location--near to airport and freeway . I had an enjoyable weekend getaway and will do it again soon!!! Very clean and comfortable hotel. The staff was overall nice! more

The place had very thin wall, as a courtesy I had to warn the couple on the next room over their conversation were not private, then is the A/C it was loud. I woke up to the sound of planes, and the nearby railroad tracks. Breakfast was half decent, and the staff attentive. Look and feel the room before you... more

This hotel was very nice, staff was very courteous, the pool was great...... more

Very large pool that has nice surrounding grounds. Very kid friendly however very few kids even over a weekend. It was a great room for the Priceline price we were able to book for. Basic Marriott room including a small refrigerator. The beds are the most comfortable hotel beds we have experienced in recent times. Room was very clean, however,... more

This review is written by a business traveler who frequents Marriott and Hilton brand hotels around the world (primarily in the US) and it is based on a one-night stay in May 2009. As a Marriott Platnium Elite member for many years (i.e. I've stayed in many Marriott-brand hotels around the world each year), I thankfully stayed here for only... more

Stayed at the Marriott Ontario for a business trip in October. Pro's: *Convenient to the airport and the interstate *Clean public areas *Large rooms with clean and comfortable bedding *Friendly and efficient staff both evening and morning Con's *Very noisy. The train sounds as if it is in the next door room. Air traffic is also loud. Can hear doors... more