ONT
LAX
Helping travelers to find the best flight offers
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Ontario to Denver:
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Starting at $46
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Ontario to Denver
Below you will find a list of airlines operating flights on the Ontario — Denver route and the starting prices for flights of each specific airline on it.
Unable to find information about the schedule of direct flights from
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Ontario to Denver. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A direct flight is the most convenient and comfortable way to fly from Ontario to Denver, despite the fact that sometimes flights with transfers can cost significantly less.
Los Angeles — Denver
04/05/2025
Departure date
Direct flight
AA6219
Starting at $132
Los Angeles — Denver
04/07/2025
Departure date
Direct flight
WN4298
Starting at $216
Los Angeles — Denver
05/30/2025
Departure date
Direct flight
WN432
Starting at $166
Los Angeles — Denver
06/10/2025
Departure date
Direct flight
F93156
Starting at $85
Los Angeles — Denver
04/26/2025
Departure date
Direct flight
WN1779
Starting at $72
Los Angeles — Denver
04/28/2025
Departure date
Direct flight
AS6033
Starting at $264
Ontario — Denver
03/26/2025
Departure date
Direct flight
WN2094
Starting at $155
The cheapest flight ticket from Ontario to Denver according to data for the last 48 hours costs $27
Often the best time to buy tickets from Ontario to Denver is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Ontario to Denver can be found flying in these months: March, May, November.
The fastest flights from Ontario to Denver start from 2 hours 10 minutes in the air.
The following airlines operate direct flights on the route Ontario — Denver: American Airlines, Southwest Airlines, Frontier Airlines
The cheapest one-way flight from Ontario to Denver departs on 06/10/2025, is operated by Frontier Airlines and costs $27
The cheapest roundtrip flight from Ontario to Denver departs on 06/10/2025, is operated by Frontier Airlines and costs $63
Fastest flight from Ontario to Denver takes 2h 10m
There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Fr, and Sa
The distance between Ontario and Denver is 1289km (799 miles). There are 52 direct flights from Ontario to Denver. The time difference between Ontario and Denver is 1h . Flights from Ontario begin at 5:10 AM. The latest flight from Ontario departs at 8:11 PM.
We couldn't find any special offers for flights from Ontario to Denver