Flights from Ontario (ONT) to Denver (DEN)

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Ontario to Denver Flight Information

Find the Cheapest Flights from Ontario (ONT) to Denver (DEN)

Work hard, travel harder! Wotif brings you the cheapest Ontario to Denver flights, making it possible to have a five star holiday without that five star price tag. Browse and compare our top ONT to DEN routes and airport options. So, go ahead and treat yourself, your sweetheart, or the kids to an unforgettable holiday this year.

to Information

Traveling From
Los Angeles - Ontario Intl.
Origin Airport
Origin Airport IATA Code
ONT
Traveling To
Denver Intl.
Destination Airport
Destination Airport IATA Code
DEN
Number of Airlines Serving
Average Flight Time
hours mins
Direct Flight Time
hours mins
Flight Price
Address:
8500 Pena Boulevard
Denver CO, 80249-6340
United States
IATA code:
DEN
Longitude:
-104.673098
Latitude:
39.851382
Time zone:
America/Denver
Address:
2900 E. Airport Drive
Ontario CA, 91761
United States
IATA code:
ONT
Longitude:
-117.601193
Latitude:
34.056001
Time zone:
America/Los_Angeles

Ontario to Denver Flight Deals from

Considering a quick trip to Denver, but not sure which is the best route for you? Well, you’re in luck! Wotif has done the hard work, so all you need to do is check out these flights from ONT to DEN. With heaps of cheap fares from Ontario, we guarantee you’ll be arriving to your holiday destination in style without emptying your bank account in the process.

It’s easy to book flights to Denver from Ontario  

For a huge choice of flights, simply enter your travel dates and hit search and we’ll hunt out fantastic deals on one-way, return and multi-city airfares to Denver from Ontario from different airlines. If you click the ‘direct flights’ box, you see flights that’ll get you to Denver in just hour(s) and mins, too.   

Snap up great deals on flights to Denver from Ontario 

Choose from flights a day on average, with prices starting at and rising to depending on the cabin class, travel dates, and airline carrier. And if you’re up for a last-minute getaway, you can get great deals on flights from Ontario to Denver today!  

Find cheap airfares to Denver from Ontario 

Here are our insider tips for bagging a flight bargain: 

  • Look for midweek flights and late night, early morning arrival and departure times
  • Check out other airports near Ontario and Denver
  • Avoid peak season (prices tend to be lower in )
  • Be flexible with your travel dates and you can usually get cheaper options  

Reasons to book your flights to Denver from Ontario with Wotif

Wotif is a super-easy way to find the best flight for you to Denver. Get more bang for your buck on flight and hotel or car rental combos and download the free Wotif app to tap into exclusive deals. Book now with Wotif and have a great flight!

 

Great places to stay after flight from Ontario to Denver

The Westin Denver International Airport

The Westin Denver International Airport

4.5 out of 5
8300 Pena Boulevard Denver CO
The price is AU$533 per night from 8 Jan to 9 Jan
AU$533
per night
8 Jan - 9 Jan
Stay at this luxury hotel in Denver. Enjoy 2 bars/lounges, breakfast (surcharge) and room service. Our guests praise the helpful staff and the clean rooms in ...
9/10 Wonderful! (1,648 reviews)
Clean, comfort and convenient when is in transit.

Reviewed on 27 Dec 2025

The Westin Denver International Airport
Gaylord Rockies Resort & Convention Center

Gaylord Rockies Resort & Convention Center

4.5 out of 5
6700 North Gaylord Rockies Boulevard Aurora CO
The price is AU$618 per night from 11 Jan to 12 Jan
AU$618
per night
11 Jan - 12 Jan
Stay at this luxury hotel in Aurora. Enjoy a full-service spa, 6 restaurants and 2 hot tubs. Our guests praise the helpful staff and the property condition in ...
8.6/10 Excellent! (1,005 reviews)
Great hotel and amenities

Reviewed on 26 Dec 2025

Gaylord Rockies Resort & Convention Center
Spark by Hilton Denver International Airport

Spark by Hilton Denver International Airport

3.5 out of 5
7020 Tower Rd Denver CO
The price is AU$146 per night from 5 Jan to 6 Jan
AU$146
per night
5 Jan - 6 Jan
Stay at this business-friendly hotel in Denver. Enjoy free breakfast, free Wi-Fi and parking (surcharge). Our guests praise the helpful staff and the clean rooms ...
8.4/10 Very Good! (538 reviews)
Clean room, super comfy bed, great breakfast!

Reviewed on 23 Dec 2025

Spark by Hilton Denver International Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

More Destinations

^Savings based on all package bookings made with Flight + Hotel on Wotif.com from , as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.