Cheap flights from Ontario to Denver

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Orlando (ORL)
Denver (DEN)
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How to find the cheapest flight from
Ontario to Denver (DEN)

All the information you need to plan the best null to DEN flight in 2022: compare Ontario to Denver flight prices with the expected peak season, weather and rainfall in Denver.
How far in advance should I book a flight from Region of Ontario to Denver?

Travellers have found it’s best to book a flight 50 days in advance to save up to 87% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 50 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Region of Ontario to Denver 1-2 weeks in advance for as low as C$ 723, or C$ 1,065 for flights within the next 24 hours.

What is the cheapest month to fly from Region of Ontario to Denver?

The best pricing can be found in the month of April. Prices to Denver from Region of Ontario average C$ 562. You can even find prices in April for less than C$ 562, as users have found deals to Denver from as low as C$ 372. The month of December appears to be one of the more expensive times to travel to Denver from Region of Ontario. Flying in the targeted month can save you up to 17%.

When is the cheapest time to fly from Region of Ontario to Denver (ON - DEN)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Denver as you normally would.

Cheap flights from Ontario to Denver in August, September 2022

The best prices found for Ontario to DEN flights for August, September
27 Sep - 8 Oct
C$ 356pp
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
21 Sep - 24 Sep
C$ 393pp
YTZ
Toronto Island
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YTZ
Toronto Island
23 Sep - 27 Sep
C$ 418pp
YTZ
Toronto Island
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YTZ
Toronto Island

Ontario to Denver 2022 flight deals

Cheap flights to Denver from Ontario found for this year
19 Oct - 15 Dec
C$ 247pp
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
19 Oct - 15 Dec
C$ 254pp
YYZ
Toronto Pearson Intl
Multiple Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
19 Oct - 15 Dec
C$ 255pp
YYZ
Toronto Pearson Intl
Multiple Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl

Cheap Flair Airlines flights from Ontario to Denver

31 Jan - 7 Feb
C$ 144pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
10 Jan - 17 Jan
C$ 147pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
5 Jan - 10 Jan
C$ 167pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl

Cheap Air Canada flights from Ontario to Denver

29 Sep - 3 Oct
C$ 447pp
YYZ
Toronto Pearson Intl
Air Canada
Direct
DEN
Denver Intl
DEN
Denver Intl
Air Canada
Direct
YYZ
Toronto Pearson Intl
29 Sep - 3 Oct
C$ 448pp
YYZ
Toronto Pearson Intl
Air Canada
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Air Canada
Direct
YYZ
Toronto Pearson Intl
28 Sep - 2 Oct
C$ 452pp
YYZ
Toronto Pearson Intl
Air Canada
Direct
DEN
Denver Intl
DEN
Denver Intl
Air Canada
Direct
YYZ
Toronto Pearson Intl

Direct flights to Denver from Ontario

Save time with Ontario to Denver direct flight deals
31 Jan - 7 Feb
C$ 144pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
10 Jan - 17 Jan
C$ 147pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl
5 Jan - 10 Jan
C$ 167pp
YYZ
Toronto Pearson Intl
Flair Airlines
Direct
DEN
Denver Intl
DEN
Denver Intl
Flair Airlines
Direct
YYZ
Toronto Pearson Intl

Last minute flights from Ontario to Denver

Late deals on round-trip flights to Denver from Ontario, departing today and this week
23 Aug - 26 Aug
C$ 479pp
YTZ
Toronto Island
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YTZ
Toronto Island
24 Aug - 6 Sep
C$ 511pp
YTZ
Toronto Island
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YTZ
Toronto Island
23 Aug - 6 Sep
C$ 554pp
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl

One-way flights to Denver Intl from Ontario

The cheapest one-way flights from Ontario to Denver
9:30 a.m. - 5:10 a.m.
Multiple Airlines
1 stop
21h 40m
YYZ - DEN
Multiple Airlines
C$ 153
Kiwi.com
10:20 a.m. - 5:02 p.m.
Multiple Airlines
1 stop
8h 42m
YYZ - DEN
Multiple Airlines
C$ 155
SmartFares
10:20 a.m. - 8:27 p.m.
Multiple Airlines
1 stop
12h 07m
YYZ - DEN
Multiple Airlines
C$ 176
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Denver</span> flights.

Flight FAQs

From Ontario to Denver

What airport do you fly into for flights to Denver from Ontario?

If you book a flight to Denver from Ontario, you will be flying to Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 29.7 km from the centre of Denver.

Which airlines flying from Ontario to Denver Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to Denver Intl that may be offering flexible cancellation policies are Air Canada, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Region of Ontario to Denver for under C$ 200 on Cheapflights?

Yes, there are multiple flights from Region of Ontario to Denver for under C$ 200. The cheapest flight booked recently is on Flair Airlines for just C$ 144, but on average you can expect to pay C$ 327.

Are there direct flights from Region of Ontario to Denver for under C$ 200 on Cheapflights?

Cheapflights has 20 direct flights from Region of Ontario to Denver under C$ 200. A good price for a direct flight from Region of Ontario to Denver is less than C$ 407.

Are there last-minute flights available from Region of Ontario to Denver for under C$ 500?

There are currently 20+ open flights from Region of Ontario to Denver within the next 7 days for less than C$ 500.

What are the most reliable airlines from Region of Ontario to Denver?

Before booking your flight to Denver from Region of Ontario, check out the most reliable airlines to get you to your destination on time: Jazz (100%), United Airlines (71%), SkyWest Airlines( 71%).

What are the most popular airlines that fly from Region of Ontario to Denver?

Consider Undisclosed Carrier, Endeavor Airlines or American Airlines when booking your flight. These represent the most popular airlines when flying from Region of Ontario to Denver.

What are the most popular routes from Region of Ontario to Denver?

Most travellers choose Toronto Pearson Intl - Denver Intl, Toronto Island - Denver Intl or Ottawa - Denver Intl when deciding on the best route from Region of Ontario to Denver.

What are the cheapest flights from Region of Ontario to Denver?

On average you can expect to pay C$ 553 for a flight from Region of Ontario to Denver. The cheapest flight overall is C$ 31 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 123.

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COVID Restrictions

View COVID Travel Restrictions for Denver, CO

Do I need a COVID test to fly to Denver from Ontario?

Information is based on travel restrictions from Ontario to Denver Intl

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Denver Intl.

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering Denver Intl.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Denver Intl.

Do I need a test to fly back to Ontario from Denver?

Returning to Ontario from Denver Intl

COVID-19 testing requirements
Visitors from Denver Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from Denver Intl are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Denver, CO

Departure points for flights from Ontario to Denver

Select to see more specific information for flights to Denver from all departure points in Ontario.

Top 6 airlines flying from Ontario to Denver Intl

The chart below displays the airlines Cheapflights users travelling from Ontario to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
American Airlines
C$ 300 C$ 528 No cancel fee 71%
Search American Airlines flights
WestJet
C$ 346 C$ 481 No cancel fee 60%
Search WestJet flights
Delta
C$ 361 C$ 681 No cancel fee N/A
Search Delta flights
Air Canada
C$ 363 C$ 738 No cancel fee 67%
Search Air Canada flights
United Airlines
C$ 389 C$ 609 No cancel fee 69%
Search United Airlines flights
Austrian Airlines
C$ 470 C$ 578 No cancel fee 78%
Search Austrian Airlines flights
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