Cheap Flights from Denver Intl. to Los Angeles - Ontario Intl.

Prices were available within the past 7 days and starts at $45 for one-way flights and $84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Denver to Ontario: Reviews from verified customers

Feb 25, 2020

Very satisfied. Great customer service.

Feb 23, 2020

Staff was really fantastic helpful and friendly. Above and beyond.

Feb 22, 2020

Frontier charges for everything! I was surprised and will fly other airlines.

Feb 3, 2020

Flight attendants were awesome.

Jan 28, 2020

Just ok

Jan 26, 2020

The plane with the tv monitors on each seat had very tight seats where my knees are pressed into back of seat in front of me. I’m only 5’7 and I feel for anyone taller than that because it has to be painful and uncomfortable.

Jan 20, 2020

The flight arrived early, which was great, but I had to wait well over 30 minutes for my bag.....

Jan 3, 2020

Flights were good, but my luggage was lost. Waiting to hear if it has been found.

Dec 27, 2019

Nothing else

Nov 24, 2019

Baggage claim took more than 45 minutes.

Flight from Denver to Ontario route information

Origin Airport Denver Intl.
Destination Airport Los Angeles - Ontario Intl.
Airlines Serving Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Flight Price $83
Distance 816 mi

Denver to Ontario (DEN-ONT) route frequently asked questions

Denver to Ontario Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Denver to Ontario offer the perfect respite. Not only does exploring Ontario provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Denver to Ontario may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from DEN to ONT today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Ontario are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Ontario more flexbily many prefers to purchase one-way tickets with options to take different airlines. One way ticket to Ontario is $45 now!