$54 Frontier Airlines Cheap Flights from Denver to Ontario

Find The Best Day To Fly from Denver to Ontario

Amazing Frontier Airlines DEN to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were round trip and $54 one way. Prices and availability subject to change. Additional terms may apply.

ONT From DEN Economy Coach Packages on Similar Airlines

Dynasty Suites Hotel Riverside
Country Inn & Suites by Radisson, Ontario at Ontario Mills, CA
Ontario Airport Hotel & Conference Center
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Frequently asked questions

CarrierFlightDepart DENArrive ONTSun
6/26
Mon
6/27
Tue
6/28
Wed
6/29
Thu
6/30
Fri
7/1
Sat
7/2
Stops
F997710:52 am00:15 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
F997510:25 pm11:44 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Discover our best Frontier Airlines flight from Denver DEN to Ontario ONT 

To find the best deals on flights to Denver from Ontario with Frontier Airlines, just enter your travel dates, filter by Frontier Airlines, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Denver DEN to Ontario ONT with Frontier Airlines 

If you’re planning a round trip, booking return flights with Frontier Airlines is usually the most cost-effective option. With airfares ranging from to , it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Frontier Airlines flights from Denver DEN to Ontario ONT 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Frontier Airlines flight from Denver to Ontario costs from $54. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Ontario ONT from  Denver DEN with Frontier Airlines 

To find a cheap Frontier Airlines flight from Denver DEN to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Frontier Airlines flights from Denver DEN to Ontario ONT 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as , or if you book a flight with a stopover. 

 

Find nonstop flights from Denver DEN to Ontario ONT with Frontier Airlines 

If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct Frontier Airlines flights only. The journey takes around 0 hour(s) 19 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Frontier Airlines flights from Denver DEN to Ontario ONT 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Ontario ONT from  Denver DEN with Frontier Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Frontier Airlines Airports
Hop on a(n) Frontier Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport Code
Country
Airport Name
Number of Flights
DENUSADenver Intl.13
MCOUSAOrlando Intl.7
CUNMEXCancun Intl.6
GDLMEXDon Miguel Hidalgo y Costilla Intl.5
PHLUSAPhiladelphia Intl.2
ORDUSAO'Hare Intl.2
MIAUSAMiami Intl.1
LASUSAMcCarran Intl.1
MEXMEXMexico City Intl.1
LAXUSALos Angeles Intl.1

Travelers ❤️ these 🏨 after their flight to Ontario

SureStay Hotel by Best Western Ontario Airport
SureStay Hotel by Best Western Ontario Airport
2.5 out of 5
3201 East Centrelake Drive, Ontario, CA, 91761
The price is $99 per night from Jun 29 to Jun 30
An outdoor pool is featured at this hotel, along with free self parking. WiFi in public areas is free. A business center, a snack bar/deli, and express check-out ...
3.9/5 Very Good! (16 reviews)
"Clean and quiet with plenty of parking"

Reviewed on Jun 11, 2022

SureStay Hotel by Best Western Ontario Airport
Ontario Airport Hotel & Conference Center
Ontario Airport Hotel & Conference Center
3.5 out of 5
700 N Haven Ave, Ontario, CA, 91764
The price is $119 per night from Jun 26 to Jun 27
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 16 conference rooms, as well as the 24-hour ...
3.9/5 Very Good! (18 reviews)
"Good amenities great breakfast buffet very kind check out staff"

Reviewed on Apr 11, 2022

Ontario Airport Hotel & Conference Center
Holiday Inn Ontario Airport, an IHG Hotel
Holiday Inn Ontario Airport, an IHG Hotel
3 out of 5
2155 E. Convention Center Way, Ontario, CA, 91764
The price is $117 per night from Jul 5 to Jul 6
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the 3 conference rooms, as well as the 24-hour business center ...
3.8/5 Good! (25 reviews)
"Room was fantastic."

Reviewed on Nov 14, 2021

Holiday Inn Ontario Airport, an IHG Hotel
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.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.