Cheap flights from Denver to Toronto from $129

The month of September is, on average, the cheapest month to fly to Toronto from Denver, with most prices found around $458. If you are unable to visit Toronto during the month of September, then departing from Denver during the month October is also very affordable. Most momondo users find prices during this month for around $490.

On average, the least expensive day to fly to Toronto from Denver is on a Thursday. momondo users have found tickets for Thursday departures for as low as $624. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Toronto is Sunday, with ticket prices averaging around $804.

At noon is the cheapest time of day to fly from Denver to Toronto when you can find flight prices for as low as $684. Flying to Toronto at noon is an ideal time because this is during off-peak travel hours. Flights to Toronto are more costly in the morning, with an average ticket price of $715. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Toronto from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around $546 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Denver for as low as $400 on momondo.

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

You could potentially save up to 28% on your flight if you consider stops on a Denver to Toronto flight.

As of March 2026, prices for Denver to Toronto flights are approximately 9% more expensive when compared to flights at the same time last year.

Alaska Airlines, Sun Country Air, and Delta are the most popular carriers operating from Denver Intl to Toronto

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Toronto from Denver according to our data. Air Canada is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Toronto. Keep in mind that there are 4 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Detroit (DTW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Minneapolis (MSP) offer the lowest average round-trip price of $561.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 4h 52m.

Detroit (DTW) has the shortest average layover time for this route: 0h 39m.

As of March 2026, there are 7 flights per day flying from Denver to Toronto. The most common time of day flights depart is 1:00PM, with 78% of flights taking off in the afternoon.

51 flights are operational weekly from Denver to Toronto as of March 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.