$138 Find Cheap Flights from Ontario to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Ontario to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Denver

Fri, Jul 25 - Mon, Jul 28
WestJet Logo
1:30 pm - 11:27 amYYZ-DEN
23h 57m1 stop
WestJet Logo
12:15 pm - 12:24 amDEN-YYZ
10h 09m1 stop
$248WestJet
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Tue, Jul 29 - Tue, Aug 5
WestJet Logo
8:00 am - 11:27 amYYZ-DEN
29h 27m1 stop
WestJet Logo
12:15 pm - 12:24 amDEN-YYZ
10h 09m1 stop
$253WestJet
Find Deal
Wed, Jul 30 - Wed, Aug 6
Air Canada Logo
5:15 am - 10:20 amYOW-DEN
7h 05m1 stop
Air Canada Logo
7:45 am - 5:05 pmDEN-YOW
7h 20m1 stop
$262Air Canada
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Thu, Aug 14 - Tue, Sep 9
Air Canada Logo
6:00 am - 10:21 amYOW-DEN
6h 21m1 stop
Air Canada Logo
7:05 pm - 8:23 amDEN-YOW
11h 18m1 stop
$281Air Canada
Find Deal
Thu, Aug 14 - Tue, Sep 9
United Airlines Logo
5:25 pm - 6:43 amYOW-DEN
15h 18m1 stop
United Airlines Logo
9:40 am - 9:35 pmDEN-YOW
9h 55m1 stop
$287United Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 16
Logo
8:40 am - 10:20 amYYZ-DEN
3h 40mnonstop
Logo
12:15 pm - 12:24 amDEN-YYZ
10h 09m1 stop
$300
Find Deal
Thu, Jul 3 - Fri, Jul 11
Logo
8:05 pm - 4:01 amYYZ-DEN
9h 56m1 stop
Logo
12:15 pm - 10:54 pmDEN-YYZ
8h 39m1 stop
$304
Find Deal
Sat, Jul 19 - Sun, Jul 27
United Airlines Logo
5:50 pm - 11:29 pmYOW-DEN
7h 39m1 stop
United Airlines Logo
7:45 am - 5:05 pmDEN-YOW
7h 20m1 stop
$329United Airlines
Find Deal
Sat, Jun 28 - Fri, Jul 4
American Airlines Logo
3:40 pm - 8:11 amYUL-DEN
18h 31m1 stop
American Airlines Logo
11:59 pm - 10:44 pmDEN-YUL
20h 45m1 stop
$343American Airlines
Find Deal
Sun, Jun 29 - Fri, Jul 4
American Airlines Logo
7:25 pm - 9:09 amYYZ-DEN
15h 44m1 stop
American Airlines Logo
7:21 am - 2:30 pmDEN-YYZ
5h 09m1 stop
$366American Airlines
Find Deal
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Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$138
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Toronto Region of Waterloo Intl to Denver

Flights from Ontario to Denver: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Ontario to Denver 
Learn how KAYAK collects reviews and tips from users.
F.Flew with United AirlinesYYZ-DENAug 2024
Make sure to check the airline delay flights rate and if you have important commitments choose another airline.
JoshuaFlew with Air CanadaYYZ-DENApr 2024
Toronto's customs was one of the faster experiences I've had. They opened four more lanes to expedite the process when the lane got too long, to ensure we would all get through within around 15 minutes. The public transportation within the city is also top notch, in my opinion.

FAQs for booking flights from Ontario to Denver

  • How does KAYAK find such low prices on flights from Ontario to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Evergreen

Everything you need to know for your flight to Denver

Information on the airport you'll fly into in Denver

Denver (DEN)

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