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$203+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
COS — YYZ
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$378
(Delta)

One-way from

$203
(United Airlines)

Popular in

November

Cheapest in

March

Average price

$522
From Colorado Springs to Ontario
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One-way flight from Colorado Springs to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 8/201:10 pmCOS - YYZ
1 stop6h 48mDelta
Wed 8/276:20 amYYZ - COS
1 stop5h 56mDelta
Deal found 7/30$378
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/236:27 amCOS - YYZ
1 stop14h 18mAmerican Airlines
Sun 8/316:49 amYYZ - COS
1 stop11h 28mAmerican Airlines
Deal found 7/30$408
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/2012:02 pmCOS - YYZ
1 stop6h 42mUnited Airlines
Wed 8/277:00 amYYZ - COS
3 stops16h 54mUnited Airlines
Deal found 7/29$418
This Flighttix deal was found by Cheapflights users on 7/31. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2310:30 amCOS - YYZ
2 stops10h 40mAir Canada
Fri 8/299:00 pmYYZ - COS
2 stops14h 04mAir Canada
Deal found 7/31$432
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 8/196:27 amCOS - YUL
1 stop6h 27mAmerican Airlines
Fri 8/223:44 pmYUL - COS
1 stop20h 18mAmerican Airlines
Deal found 7/30$458
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/206:00 amCOS - YUL
1 stop13h 29mUnited Airlines
Mon 9/2211:23 amYUL - COS
2 stops12h 31mUnited Airlines
Deal found 7/31$483
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:00 amCOS - YUL
2 stops15h 29mDelta
Mon 9/226:45 amYUL - COS
2 stops15h 54mDelta
Deal found 7/29$522
This United deal was found by Cheapflights users on 7/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/297:30 amCOS - YUL
2 stops11h 59mMultiple Airlines
Mon 9/19:15 amYUL - COS
2 stops16h 35mMultiple Airlines
Deal found 7/31$725
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:00 amCOS - YOW
1 stop9h 06mMultiple Airlines
Sun 9/2110:37 amYOW - COS
1 stop26h 19mMultiple Airlines
Deal found 7/31$810
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:25 pmCOS - YOW
2 stops13h 33mUnited Airlines
Sun 9/215:25 pmYOW - COS
1 stop19h 31mUnited Airlines
Deal found 7/31$843

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 July 31, 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

Wed 8/20

1:10 pm-9:58 pm

1 stop6h 48m

Toronto Pearson Intl

Wed 8/27

6:20 am-10:16 am

1 stop5h 56m

$378

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sat 8/23

6:27 am-10:45 pm

1 stop14h 18m

Toronto Pearson Intl

Sun 8/31

6:49 am-4:17 pm

1 stop11h 28m

$408

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 8/20

12:02 pm-8:44 pm

1 stop6h 42m

Toronto Pearson Intl

Wed 8/27

7:00 am-9:54 pm

3 stops16h 54m

$418

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Sat 8/23

10:30 am-11:10 pm

2 stops10h 40m

Toronto Pearson Intl

Fri 8/29

9:00 pm-9:04 am

2 stops14h 04m

$432

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Tue 8/19

6:27 am-2:54 pm

1 stop6h 27m

Montreal Pierre Elliott Trudeau Intl

Fri 8/22

3:44 pm-10:02 am

1 stop20h 18m

$458

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sat 9/20

6:00 am-9:29 pm

1 stop13h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 9/22

11:23 am-9:54 pm

2 stops12h 31m

$483

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Thu 9/18

6:00 am-11:29 pm

2 stops15h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 9/22

6:45 am-8:39 pm

2 stops15h 54m

$522

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Fri 8/29

7:30 am-9:29 pm

2 stops11h 59m

Montreal Pierre Elliott Trudeau Intl

Mon 9/1

9:15 am-11:50 pm

2 stops16h 35m

$725

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 9/14

6:00 am-5:06 pm

1 stop9h 06m

Ottawa

Sun 9/21

10:37 am-10:56 am

1 stop26h 19m

$810

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 9/14

6:25 pm-9:58 am

2 stops13h 33m

Ottawa

Sun 9/21

5:25 pm-10:56 am

1 stop19h 31m

$843

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 13 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 July 31, 2025.
See what other customers who have flown with Delta, United Airlines, and American 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
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

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!
Air Canada
7.1
Good
9,851 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

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.

  • 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 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$150Average$230FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$530FlexibilityNo cancel feeOn-time69%

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