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$241+ 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
COS — YYZ
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:48 pm
COS
-
YYZ
1 stop21h 31m
American Airlines
Mon 3/306:17 pm
YYZ
-
COS
1 stop19h 42m
American Airlines
Deal found 1/27$449
This United Airlines deal was found by Cheapflights users on 1/28. 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 4/151:33 pm
COS
-
YYZ
1 stop5h 59m
United Airlines
Sun 4/1910:45 am
YYZ
-
COS
1 stop5h 45m
United Airlines
Deal found 1/28$490
This American Airlines deal was found by Cheapflights users on 1/26. 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 3/44:49 pm
COS
-
YUL
2 stops20h 33m
American Airlines
Mon 3/93:45 pm
YUL
-
COS
1 stop22h 14m
American Airlines
Deal found 1/26$493
This Delta deal was found by Cheapflights users on 1/28. 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 4/156:15 am
COS
-
YYZ
2 stops13h 00m
Delta
Sun 4/196:30 am
YYZ
-
COS
2 stops15h 50m
Delta
Deal found 1/28$506
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/113:17 pm
COS
-
YYZ
2 stops17h 56m
American Airlines
Sat 2/1412:30 pm
YYZ
-
COS
2 stops11h 40m
American Airlines
Deal found 1/28$541
This United Airlines deal was found by Cheapflights users on 1/28. 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 3/156:55 pm
COS
-
YYZ
2 stops17h 06m
United Airlines
Sun 3/224:10 pm
YYZ
-
COS
1 stop9h 46m
United Airlines
Deal found 1/28$550
This Delta deal was found by Cheapflights users on 1/26. 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.
Fri 2/271:22 pm
COS
-
YUL
1 stop8h 23m
Delta
Wed 3/47:00 am
YUL
-
COS
1 stop7h 25m
Delta
Deal found 1/26$564
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 2/274:49 pm
COS
-
YUL
2 stops20h 33m
American Airlines
Wed 3/47:30 am
YUL
-
COS
2 stops16h 40m
American Airlines
Deal found 1/26$568
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/156:55 pm
COS
-
YUL
2 stops18h 21m
United Airlines
Tue 2/176:00 am
YUL
-
COS
1 stop6h 55m
United Airlines
Deal found 1/27$574
This Delta deal was found by Cheapflights users on 1/28. 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 3/156:20 am
COS
-
YYZ
1 stop8h 40m
Delta
Sun 3/226:10 am
YYZ
-
COS
1 stop8h 23m
Delta
Deal found 1/28$578
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/154:49 pm
COS
-
YUL
2 stops20h 15m
American Airlines
Tue 2/177:30 am
YUL
-
COS
2 stops16h 40m
American Airlines
Deal found 1/27$579
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 2/275:59 am
COS
-
YUL
2 stops10h 41m
United Airlines
Wed 3/45:25 pm
YUL
-
COS
1 stop17h 24m
United Airlines
Deal found 1/26$604

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$449
(American Airlines)

One-way from

$241
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$317
Provider with most accurate pricing for Denver Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Toronto (YTO) flights.
Search Deals
From Colorado Springs to Ontario
Search Deals
One-way flight from Colorado Springs to Ontario
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

Mon 3/23

4:48 pm-4:19 pm

1 stop21h 31m

Toronto Pearson Intl

Mon 3/30

6:17 pm-11:59 am

1 stop19h 42m

$449

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Fri 3/13

1:28 pm-9:54 pm

1 stop6h 26m

Toronto Pearson Intl

Fri 3/20

12:25 pm-8:28 pm

1 stop10h 03m

$490

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 4/15

12:18 pm-10:36 pm

1 stop8h 18m

Toronto Pearson Intl

Sun 4/19

4:18 pm-9:57 pm

1 stop7h 39m

$490

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Wed 3/4

4:49 pm-3:22 pm

2 stops20h 33m

Montreal Pierre Elliott Trudeau Intl

Mon 3/9

3:45 pm-11:59 am

1 stop22h 14m

$493

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 2/11

3:17 pm-10:58 am

2 stops17h 41m

Toronto Pearson Intl

Sat 2/14

5:14 pm-9:50 am

1 stop18h 36m

$500

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 4/15

6:15 am-10:56 pm

2 stops14h 41m

Toronto Pearson Intl

Sun 4/19

6:30 am-8:20 pm

2 stops15h 50m

$506

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Fri 2/27

1:22 pm-11:45 pm

1 stop8h 23m

Montreal Pierre Elliott Trudeau Intl

Wed 3/4

7:00 am-12:25 pm

1 stop7h 25m

$564

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Fri 2/27

4:49 pm-3:22 pm

2 stops20h 33m

Montreal Pierre Elliott Trudeau Intl

Wed 3/4

7:30 am-10:10 pm

2 stops16h 40m

$568

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sun 2/15

6:55 pm-3:16 pm

2 stops18h 21m

Montreal Pierre Elliott Trudeau Intl

Tue 2/17

6:00 am-10:55 am

1 stop6h 55m

$574

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sun 2/15

4:49 pm-3:04 pm

2 stops20h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 2/17

7:30 am-10:10 pm

2 stops16h 40m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 20 results
1
2

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, June is the cheapest month in which you can book a flight from Colorado Springs to Region of Ontario (average of $135). Flying from Colorado Springs to Region of Ontario in January is currently the most expensive (average of $223). 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 January 29, 2026.
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
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,128 reviews
Delta
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,215 reviews
Delta
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $490, American Airlines can have you in Region of Ontario from Colorado Springs in 6h 26m. 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, June is the cheapest month in which you can book a flight from Colorado Springs to Region of Ontario (average of $135). Flying from Colorado Springs to Region of Ontario in January is currently the most expensive (average of $223). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$144Average$172FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$514FlexibilityNo cancel feeOn-time69%

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