Cheap Flights from Denver to Ontario Intl. Airport
Popular airlines from Denver Intl. Airport (DEN) to Ontario Intl. Airport (ONT)
Frontier AirlinesFrontier Airlines
Alaska AirlinesAlaska Airlines
UnitedUnited
Southwest AirlinesSouthwest Airlines
DeltaDelta
American AirlinesAmerican Airlines
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Flights from Denver to Ontario
When looking for plane tickets from Denver to Ontario, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to Ontario. Look for DEN to ONT airfare with the assurance that you have the largest online travel agency working for you.
Expedia lets you search across the largest number of airlines and Ontario flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Denver Ontario flight!
Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Denver to Ontario trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.
Combine your Ontario flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Denver to Ontario with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!
Frequently Asked Questions
How much is a flight from Denver Intl. Airport (DEN) to Ontario Airport?
Round-trip tickets from DEN to Ontario Airport start from . This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DIA airport to ONT?
Most flights can be cancelled online, but every air carrier has different terms and conditions. If you do decide to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from DEN to ONT that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Denver Airport to Los Angeles - Ontario Intl. Airport (ONT) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Denver Airport to ONT?
A flight distance of just 1,300 kilometres separates Denver and Ontario. Once you're up in the skies, you won't get a chance to do much more than read the magazine in your seat pocket.
Which airlines fly direct from DEN to Los Angeles - Ontario Intl. Airport (ONT)?
A popular airline that flies from DEN to Ontario Airport is Southwest Airlines (WN). It offers 99 monthly flights. Operating 60 flights each month along this route, Frontier Airlines (F9) is another top pick.
Are DEN to ONT flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes find a bargain, with some of the cheapest airfares from Denver Airport to Ontario Airport surfacing a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals regularly — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices that far in advance.
Travel information
Origin airport | Denver Intl. Airport |
|---|---|
Destination airport | Ontario Intl. Airport |
Distance | 1,313 km away |
Airlines serving | Frontier Airlines, Alaska Airlines, United, Southwest Airlines, Delta, American Airlines |
Popular airline | Frontier Airlines |
Average flight time | 2 hours 21 mins |