HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$399+ Cheap flights from Colorado Springs (COS) to Ontario

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
COS — YYZ
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado Springs to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado Springs to Ontario

Keep the following information in mind while searching for Colorado Springs to Ontario flight deals. Data was last updated May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$399
(United Airlines)

Popular in

December

Cheapest in

October
Provider with most accurate pricing for Colorado Springs-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Colorado Springs-Toronto (YTO) flights.
Search Deals
From Colorado Springs to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($36 potential savings vs. average RT price).
Search Deals

Find flight deals from Colorado Springs to Ontario

Cheapest flights from Colorado Springs to Ontario
Explore the most affordable flight options available from Colorado Springs to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/78:00 amCOS - YYZ
1 stop5h 11mUnited Airlines
Sat 6/146:20 pmYYZ - COS
1 stop5h 31mUnited Airlines
Deal found 4/30$399
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/612:01 pmCOS - YYZ
1 stop9h 27mAmerican Airlines
Sat 6/146:49 amYYZ - COS
1 stop11h 22mAmerican Airlines
Deal found 4/30$427
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1412:04 pmCOS - YUL
1 stop7h 25mUnited Airlines
Sun 6/298:05 amYUL - COS
1 stop15h 50mUnited Airlines
Deal found 4/29$427
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:57 amCOS - YYZ
2 stops9h 02mDelta
Fri 6/2010:20 amYYZ - COS
2 stops13h 15mDelta
Deal found 4/30$442
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/242:22 pmCOS - YUL
1 stop7h 33mDelta
Mon 8/46:20 amYUL - COS
1 stop5h 39mDelta
Deal found 5/1$451
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/145:01 pmCOS - YUL
1 stop19h 49mAmerican Airlines
Sun 6/293:40 pmYUL - COS
1 stop10h 15mAmerican Airlines
Deal found 4/29$468
This Air Canada deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/243:35 pmCOS - YUL
2 stops8h 16mAir Canada
Mon 8/46:00 amYUL - COS
2 stops10h 38mAir Canada
Deal found 5/1$665
This Air Canada deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:30 pmCOS - YYZ
1 stop5h 18mAir Canada
Sun 5/46:20 pmYYZ - COS
1 stop16h 24mAir Canada
Deal found 4/30$732
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:04 pmCOS - YOW
1 stop7h 31mUnited Airlines
Fri 6/206:40 amYOW - COS
1 stop6h 28mUnited Airlines
Deal found 4/29$922
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:00 amCOS - YUL
3 stops27h 51mMultiple Airlines
Sun 5/119:00 amYUL - COS
2 stops35h 39mMultiple Airlines
Deal found 4/30$992

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado Springs to Ontario 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 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Colorado Springs to Ontario that are best for you.

Fly from

Colorado Springs

Fly to

Ontario

Route

Depart

Return

Price

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sat 6/7

8:00 am-3:11 pm

1 stop5h 11m

Toronto Pearson Intl

Sat 6/14

6:20 pm-9:51 pm

1 stop5h 31m

$399

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Fri 6/6

12:01 pm-11:28 pm

1 stop9h 27m

Toronto Pearson Intl

Sat 6/14

6:49 am-4:11 pm

1 stop11h 22m

$427

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sat 6/14

12:04 pm-9:29 pm

1 stop7h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 6/29

8:05 am-9:55 pm

1 stop15h 50m

$427

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Fri 6/13

10:57 am-9:59 pm

2 stops9h 02m

Toronto Pearson Intl

Fri 6/20

10:20 am-9:35 pm

2 stops13h 15m

$442

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Thu 7/24

2:22 pm-11:55 pm

1 stop7h 33m

Montreal Pierre Elliott Trudeau Intl

Mon 8/4

6:20 am-9:59 am

1 stop5h 39m

$451

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sat 6/14

5:01 pm-2:50 pm

1 stop19h 49m

Montreal Pierre Elliott Trudeau Intl

Sun 6/29

3:40 pm-11:55 pm

1 stop10h 15m

$468

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Thu 7/24

3:35 pm-1:51 am

2 stops8h 16m

Montreal Pierre Elliott Trudeau Intl

Mon 8/4

6:00 am-2:38 pm

2 stops10h 38m

$665

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Fri 6/13

12:04 pm-9:35 pm

1 stop7h 31m

Ottawa

Fri 6/20

6:40 am-11:08 am

1 stop6h 28m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from Colorado Springs to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Colorado Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado Springs to Ontario

What is the cheapest month to book a flight from Colorado Springs to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Colorado Springs to Region of Ontario (average of $243). Flying from Colorado Springs to Region of Ontario in July is currently the most expensive (average of $359). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated May 1, 2025.
Read through reviews of airlines operating flights from Colorado Springs to Ontario, such as Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,245 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Colorado Springs to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Colorado Springs to Ontario?

    If you book a flight to Ontario from Colorado Springs, you will be flying from Colorado Springs, which is the city’s only airport. Colorado Springs (COS) is located 6.7 mi from the center of Colorado Springs.

  • What are the most popular routes from Colorado Springs to Region of Ontario?

    While some choose either Colorado Springs - Toronto Pearson Intl or Colorado Springs - Ottawa, Colorado Springs - Montreal Pierre Elliott Trudeau Intl is the most popular route from Colorado Springs to Region of Ontario.

  • Can I find deals for flights from Colorado Springs to Ontario that include hotel bookings?

    Yes. In addition to deals on Colorado Springs to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado Springs to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado Springs to Ontario.

  • Can I find deals for business class flights from Colorado Springs to Ontario?

    Yes. Cheapflights offers flight deals from Colorado Springs to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado Springs to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Colorado Springs to Region of Ontario (average of $243). Flying from Colorado Springs to Region of Ontario in July is currently the most expensive (average of $359). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado Springs to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Vancouver Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Denver to Pearson Intl flights
Denver to Calgary flights
Denver to Abbotsford flights
Denver to Edmonton flights
Denver to Toronto Island flights
Denver to Region of Waterloo Intl flights
Denver to Winnipeg flights
Denver to Québec City flights
Denver to Hamilton flights
Denver to Ottawa flights
Denver to Victoria flights
Denver to Kelowna flights
Denver to Halifax flights
Grand Junction to Vancouver Intl flights
Colorado Springs to Vancouver Intl flights
Denver to Saskatoon flights
Montrose to Vancouver Intl flights
Vail to Vancouver Intl flights
Colorado Springs to Pierre Elliott Trudeau Intl flights
Denver to Charlottetown flights
Colorado Springs to Pearson Intl flights
Denver to St. John's flights
Grand Junction to Calgary flights
Denver to Sydney flights
Denver to Yellowknife flights
Grand Junction to Thunder Bay flights
Montrose to Calgary flights
Colorado Springs to Québec City flights
Denver to Regina flights
Colorado Springs to Calgary flights
Aspen to Halifax flights
Vail to Pearson Intl flights
Durango to Pearson Intl flights
Colorado Springs to Victoria flights
Denver to Campbell River flights
Denver to Fredericton flights
Denver to London flights
Denver to Moncton flights
Aspen to Vancouver Intl flights
Hayden to Calgary flights
Colorado Springs to Edmonton flights
Aspen to Ottawa flights
Colorado Springs to Winnipeg flights
Colorado Springs to Ottawa flights
Grand Junction to Edmonton flights
Durango to Calgary flights

Top 3 airlines flying from Colorado Springs to Ontario

Discover the top 3 airlines that operate flights from Colorado Springs to Ontario. 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 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$130Average$315FlexibilityNo cancel feeOn-time67%
DeltaCheapest$144Average$255FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$160Average$627FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.