Cheap flights from Ontario to Colorado from C$ 209
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ontario to Colorado
Keep the following information in mind while searching for Ontario to Colorado flight deals. Data was last updated 28 March 2025.
Round-trip from | C$ 322 |
---|---|
One-way from | C$ 209 |
Popular in | December |
Cheapest in | October |
Average price | C$ 693 |
Good round-trip deal | C$ 502 or less |
Good one-way deal | C$ 318 or less |
Find flight deals from Ontario to Colorado
Cheapest flights from Ontario to ColoradoExplore the most affordable flight options available from Ontario to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.
Explore the most affordable flight options available from Ontario to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 March 2025.
Use the filters below to find and compare flights from Ontario to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Sun 1/6
6:10 a.m.-6:52 p.m.
2 stops14h 42m
Denver Intl
Sun 8/6
7:40 p.m.-6:45 a.m.
1 stop9h 05m
HamiltonDenver
YHM - DEN
YHMDEN
Hamilton
Sun 25/5
6:00 a.m.-6:52 p.m.
1 stop14h 52m
Denver Intl
Wed 28/5
12:15 p.m.-12:41 a.m.
1 stop10h 26m
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Mon 28/4
6:10 p.m.-9:01 a.m.
1 stop16h 51m
Denver Intl
Wed 7/5
12:15 p.m.-12:41 a.m.
1 stop10h 26m
TorontoColorado Springs
YYZ - COS
YYZCOS
Toronto Pearson Intl
Fri 27/6
1:25 p.m.-8:58 p.m.
1 stop9h 33m
Colorado Springs
Sun 29/6
6:00 a.m.-3:04 p.m.
1 stop7h 04m
TorontoColorado Springs
YYZ - COS
YYZCOS
Toronto Pearson Intl
Sat 26/4
6:45 a.m.-3:49 p.m.
1 stop11h 04m
Colorado Springs
Sat 3/5
6:00 a.m.-5:20 p.m.
2 stops9h 20m
MontrealColorado Springs
YUL - COS
YULCOS
Montreal Pierre Elliott Trudeau Intl
Sun 1/6
8:05 a.m.-9:51 p.m.
1 stop15h 46m
Colorado Springs
Sat 14/6
3:43 p.m.-11:56 a.m.
2 stops18h 13m
TorontoDenver
YYZ - DEN
YYZDEN
Toronto Pearson Intl
Sun 11/5
6:20 p.m.-8:05 p.m.
Nonstop3h 45m
Denver Intl
Sun 18/5
12:15 p.m.-10:54 p.m.
1 stop8h 39m
TorontoDenver
YYZ - DEN
YYZDEN
Toronto Pearson Intl
Thu 11/9
8:00 a.m.-11:24 a.m.
1 stop29h 24m
Denver Intl
Mon 15/9
12:15 p.m.-10:52 p.m.
1 stop8h 37m
MontrealColorado Springs
YUL - COS
YULCOS
Montreal Pierre Elliott Trudeau Intl
Sun 1/6
8:00 a.m.-8:40 p.m.
2 stops14h 40m
Colorado Springs
Sat 14/6
5:30 a.m.-5:21 p.m.
2 stops9h 51m
TorontoDenver
YTZ - DEN
YTZDEN
Toronto Island
Mon 28/4
4:10 p.m.-3:56 a.m.
2 stops13h 46m
Denver Intl
Thu 1/5
3:42 p.m.-12:22 p.m.
1 stop18h 40m
Best time to book a flight from Ontario to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Colorado
What is the cheapest month to book a flight from Region of Ontario to Colorado?
Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Colorado (average of C$ 320). Flying from Region of Ontario to Colorado in December is currently the most expensive (average of C$ 484). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ON to CO?
Find hourly flight availability from Ontario to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.
When flying from Region of Ontario to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Colorado by month
Plan your trip to Colorado by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Colorado ranges from 13.0 - 58.0 mm per month. May is typically the wettest month, when rainfall can reach 58.0 mm. January is typically the driest time to visit Colorado when rainfall is around 13.0 mm.
Temperature in Colorado by month
Plan your trip to Colorado by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated 28 March 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Ontario to Colorado have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Entertainment
Comfort
Overall
Boarding
Food
Crew
Reviews
Cheri,Jan 2025
FAT - SEA
Related info for your journey
Find useful and relevant information for your journey from Ontario to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Ontario to Colorado
Discover the top 3 airlines that operate flights from Ontario to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 March 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ontario to Colorado?
Cheapflights makes it easy to find Ontario to Colorado flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Ontario to Colorado?
Cheapflights helps you find that perfect flight to Colorado from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Ontario to Colorado with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Colorado, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Ontario to Colorado become cheaper?
Yes! Start tracking prices for Ontario to Colorado flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.