Cheap flights from Ontario to Colorado from $155

The month of November is, on average, the cheapest month to fly to Colorado from Region of Ontario, with most prices found around $394. The month of August is another great option to travel to Colorado, with average flight prices from Region of Ontario averaging around $414.

The cheapest day to depart from Region of Ontario to Colorado is on a Friday when prices can be found for as low as $437. On the other hand, Monday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $619.

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $521. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $527 per ticket.

Fly from Toronto Pearson Intl to Denver Intl for the best Ontario - Colorado flight prices

You are more likely to see cheaper flights to Colorado from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $471 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Region of Ontario for as low as $345 on momondo.

There are 4 cabin classes available to choose from on Ontario to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, there are 4 flights per day flying from Region of Ontario to Colorado. The most common time of day flights depart is 8:00AM, with 65% of flights taking off in the afternoon.

34 flights are operational weekly from Region of Ontario to Colorado as of March 2026. The most popular departure day for this route is Wed, with 26% of flights per week taking off on this day.