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$190+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
COS — YYZ
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
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Cheap 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 April 28, 2026.

This Delta deal was found by Cheapflights users on 4/23. 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.
Mon 6/158:14 am
COS
-
YYZ
1 stop6h 21m
Delta
Fri 6/191:40 pm
YYZ
-
COS
1 stop10h 14m
Delta
Deal found 4/23$439
This Delta deal was found by Cheapflights users on 4/23. 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 5/138:15 am
COS
-
YYZ
2 stops12h 59m
Delta
Sat 5/1612:29 pm
YYZ
-
COS
2 stops11h 53m
Delta
Deal found 4/23$454
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Thu 7/301:30 pm
COS
-
YYZ
1 stop6h 02m
United Airlines
Wed 8/57:00 am
YYZ
-
COS
1 stop6h 10m
United Airlines
Deal found 4/26$473
This Delta deal was found by Cheapflights users on 4/27. 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 6/116:00 am
COS
-
YYZ
1 stop9h 19m
Delta
Thu 6/1811:38 am
YYZ
-
COS
2 stops13h 04m
Delta
Deal found 4/27$477
This Delta deal was found by Cheapflights users on 4/26. 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 7/301:40 pm
COS
-
YYZ
1 stop8h 18m
Delta
Wed 8/52:24 pm
YYZ
-
COS
2 stops10h 22m
Delta
Deal found 4/26$483
This American Airlines deal was found by Cheapflights users on 4/26. 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 6/35:35 am
COS
-
YUL
1 stop7h 09m
American Airlines
Sat 6/61:03 pm
YUL
-
COS
2 stops11h 21m
American Airlines
Deal found 4/26$501
This Delta deal was found by Cheapflights users on 4/23. 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 6/31:55 pm
COS
-
YUL
1 stop8h 02m
Delta
Sat 6/612:40 pm
YUL
-
COS
1 stop10h 47m
Delta
Deal found 4/23$512
This Delta deal was found by Cheapflights users on 4/24. 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.
Mon 6/86:00 am
COS
-
YYZ
2 stops13h 19m
Delta
Mon 6/1512:25 pm
YYZ
-
COS
2 stops12h 15m
Delta
Deal found 4/24$532
This Delta deal was found by Cheapflights users on 4/24. 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 5/276:00 am
COS
-
YUL
1 stop9h 43m
Delta
Sat 6/612:40 pm
YUL
-
COS
1 stop10h 47m
Delta
Deal found 4/24$532
This American Airlines deal was found by Cheapflights users on 4/26. 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 6/208:01 am
COS
-
YYZ
2 stops12h 29m
American Airlines
Tue 6/236:46 am
YYZ
-
COS
1 stop17h 38m
American Airlines
Deal found 4/26$535
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Mon 8/246:32 pm
COS
-
YUL
2 stops20h 58m
United Airlines
Wed 8/266:10 am
YUL
-
COS
1 stop6h 49m
United Airlines
Deal found 4/26$542
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/136:57 pm
COS
-
YOW
2 stops12h 14m
United Airlines
Sun 5/172:00 pm
YOW
-
COS
2 stops11h 59m
United Airlines
Deal found 4/24$618

Find 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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$439
(Delta)

One-way from

$190
(Delta)
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
One-way flight from Colorado Springs to Ontario
Search Deals

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 April 28, 2026.
Use the filters below to find and compare flights from Colorado Springs to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Mon 6/15

8:14 am-4:35 pm

1 stop6h 21m

Toronto Pearson Intl

Fri 6/19

1:40 pm-9:54 pm

1 stop10h 14m

$439

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 5/13

1:55 pm-11:58 pm

1 stop8h 03m

Toronto Pearson Intl

Sat 5/16

1:34 pm-9:27 pm

1 stop9h 53m

$439

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Mon 6/15

5:44 am-7:37 pm

1 stop11h 53m

Toronto Pearson Intl

Fri 6/19

7:00 am-12:21 pm

2 stops7h 21m

$449

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Fri 6/19

6:00 am-5:19 pm

1 stop9h 19m

Toronto Pearson Intl

Sun 6/21

11:38 am-10:40 pm

2 stops13h 02m

$449

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Wed 6/3

5:35 am-2:44 pm

1 stop7h 09m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

1:03 pm-10:24 pm

2 stops11h 21m

$501

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Wed 6/3

1:55 pm-11:57 pm

1 stop8h 02m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

12:40 pm-9:27 pm

1 stop10h 47m

$512

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Wed 5/27

6:00 am-5:43 pm

1 stop9h 43m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

12:40 pm-9:27 pm

1 stop10h 47m

$532

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Mon 8/24

6:32 pm-5:30 pm

2 stops20h 58m

Montreal Pierre Elliott Trudeau Intl

Wed 8/26

6:10 am-10:59 am

1 stop6h 49m

$542

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Wed 5/13

6:57 pm-9:11 am

2 stops12h 14m

Ottawa

Sun 5/17

2:00 pm-11:59 pm

2 stops11h 59m

$618

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Mon 5/18

6:57 pm-9:11 am

2 stops12h 14m

Ottawa

Sat 5/30

6:25 am-11:10 am

1 stop6h 45m

$688

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 24 resultsSorted by cheapest first
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2
3

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
No data available for this route at this time. Please check back soon.

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 April 28, 2026.
See what other customers who have flown with 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.
United Airlines
7.4
Good
9,672 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,672 reviews
United Airlines
7.4
Good
9,672 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 $439, Delta can have you in Region of Ontario from Colorado Springs in 6h 21m. 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 - 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Colorado Springs to Ontario

Discover the top airline 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$177Average$514FlexibilityNo cancel feeOn-time69%

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