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$187+ Cheap flights from Colorado Springs (COS) to Ontario

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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
COS — YYZ
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$408
(Delta)

One-way from

$187
(Delta)

Popular in

February

Cheapest in

March

Average price

$478
From Colorado Springs to Ontario
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One-way flight from Colorado Springs to Ontario
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High demand for flights, 26% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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.
Sat 10/116:00 amCOS - YYZ
2 stops12h 42mDelta
Tue 10/1411:52 amYYZ - COS
1 stop10h 38mDelta
Deal found 9/14$408
This Delta deal was found by Cheapflights users on 9/13. 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.
Sat 10/256:00 amCOS - YYZ
1 stop8h 50mDelta
Sat 11/112:25 pmYYZ - COS
1 stop7h 46mDelta
Deal found 9/13$414
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/296:00 amCOS - YYZ
2 stops8h 02mUnited Airlines
Wed 11/54:10 pmYYZ - COS
1 stop9h 49mUnited Airlines
Deal found 9/14$438
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/104:54 pmCOS - YUL
1 stop19h 55mAmerican Airlines
Fri 10/173:44 pmYUL - COS
1 stop20h 02mAmerican Airlines
Deal found 9/13$472
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/86:02 amCOS - YYZ
1 stop8h 23mAmerican Airlines
Tue 10/146:49 amYYZ - COS
1 stop17h 20mAmerican Airlines
Deal found 9/14$473
This Delta deal was found by Cheapflights users on 9/13. 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.
Sun 11/238:00 amCOS - YYZ
2 stops13h 21mDelta
Mon 12/16:10 amYYZ - COS
1 stop8h 27mDelta
Deal found 9/13$476
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/812:54 pmCOS - YYZ
2 stops9h 04mUnited Airlines
Tue 10/142:55 pmYYZ - COS
1 stop8h 59mUnited Airlines
Deal found 9/14$517
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/111:54 pmCOS - YYZ
2 stops8h 04mUnited Airlines
Tue 10/141:00 pmYYZ - COS
2 stops10h 54mUnited Airlines
Deal found 9/14$522
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/106:20 pmCOS - YUL
2 stops15h 08mUnited Airlines
Fri 10/175:25 pmYUL - COS
1 stop6h 29mUnited Airlines
Deal found 9/14$716
This American Airlines deal was found by Cheapflights users on 9/13. 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 9/1912:32 pmCOS - YUL
2 stops19h 14mAmerican Airlines
Mon 9/2210:38 amYUL - COS
2 stops13h 30mAmerican Airlines
Deal found 9/13$874
This Delta deal was found by Cheapflights users on 9/14. 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 9/191:11 pmCOS - YUL
1 stop8h 45mDelta
Mon 9/227:00 amYUL - COS
1 stop7h 06mDelta
Deal found 9/14$1,040

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 September 15, 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 10/11

6:00 am-8:42 pm

2 stops12h 42m

Toronto Pearson Intl

Tue 10/14

11:52 am-8:30 pm

1 stop10h 38m

$408

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sat 10/25

6:00 am-4:50 pm

1 stop8h 50m

Toronto Pearson Intl

Sat 11/1

12:25 pm-6:11 pm

1 stop7h 46m

$414

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 10/29

7:42 am-10:45 pm

1 stop13h 03m

Toronto Pearson Intl

Wed 11/5

6:10 am-3:47 pm

1 stop11h 37m

$429

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sun 11/23

1:42 pm-11:59 pm

1 stop8h 17m

Toronto Pearson Intl

Mon 12/1

6:10 am-12:37 pm

1 stop8h 27m

$429

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Fri 10/10

4:54 pm-2:49 pm

1 stop19h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 10/17

3:44 pm-9:46 am

1 stop20h 02m

$472

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Fri 10/10

6:20 pm-11:28 am

2 stops15h 08m

Montreal Pierre Elliott Trudeau Intl

Fri 10/17

5:25 pm-9:54 pm

1 stop6h 29m

$716

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 11/26

1:42 pm-11:59 pm

1 stop8h 17m

$187

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 11/26

5:45 am-4:18 pm

1 stop8h 33m

$187

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sun 11/23

1:42 pm-11:59 pm

1 stop8h 17m

$187

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 11/26

10:34 am-9:21 pm

2 stops8h 47m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 12 results
1
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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 August is currently the most expensive (average of $348). 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.

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 September 15, 2025.
See what other customers who have flown with Delta and United Airlines from Colorado Springs to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • How long is the flight from Colorado Springs to Region of Ontario?

    For as low as $408, Delta can have you in Region of Ontario from Colorado Springs in 12h 42m. Airlines will cover a distance of 1339 mi. This flight may include one or multiple stops.

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

    While some choose either Colorado Springs - Montreal Pierre Elliott Trudeau Intl or Colorado Springs - Ottawa, Colorado Springs - Toronto Pearson 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 August is currently the most expensive (average of $348). 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

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Alternative routes for Colorado Springs to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Colorado Springs to Ontario

Discover the top 2 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$144Average$176FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$514FlexibilityNo cancel feeOn-time69%

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