Feel at ease with free flight cancellations within 24 hours of booking
Change your flight without a fee on select flights
The cheapest flights to Denver Intl. found within the past 7 days were $108 round trip and $54 one way. Prices and availability subject to change. Additional terms may apply.
|Carrier||Flight||Depart ONT||Arrive DEN||Thu |
|F9974||05:30 am||08:55 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|UA1824||05:39 am||08:59 am||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|F9976||01:01 pm||04:30 pm||Check Fare|
|UA5279||01:03 pm||04:31 pm||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare||Check Fare|
|F9972||06:34 pm||10:00 pm|
|Check Fare||Check Fare|
|Traveling From||Los Angeles - Ontario Intl.|
|Traveling To||Denver Intl.|
|Shortest Flight Time||2 hours 10 mins|
|Earliest Departure Time||5:30AM PDT|
|Latest Departure Time||7:50PM PDT|
|Lowest Flight Price||$108|
Flight path for flights from LA/Ontario International Airport to Denver International Airport
Airlines & Aircraft Used on ONT to DEN Flight Routes
With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times.
Airfares to Denver DEN from Ontario ONT currently cost between $108 and $130. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply.
If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Ontario ONT to Denver DEN on Travelocity starting at $54. Prices and availability subject to change. Additional terms may apply.
Get to Denver faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to DEN from ONT to take around 2 hour(s) 10 min(s).
Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to DEN from ONT. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.
If you’re flexible about when you travel, September is usually the cheapest month to fly from Ontario ONT to Denver DEN. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first.
Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to DEN from ONT have this option.
We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving.
Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario (ONT) today with the cheap prices from Travelocity!
Travelers at DEN love to visit these top cities. Roam to the top destinations from Denver(DEN) today with the cheap prices from Travelocity!