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Cheap flights from Ontario to Denver from $228

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Denver departing on 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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United Airlines Logo
7:27 pm - 8:52 amYOW-COS
15h 25m2 stops
United Airlines Logo
11:43 am - 9:18 pmCOS-YOW
7h 35m1 stop
$300United Airlines
Find Deal
Sun, Feb 1 - Thu, Feb 5
Delta Logo
6:10 am - 5:19 pmYYZ-COS
13h 09m2 stops
Delta Logo
2:00 pm - 11:59 pmCOS-YYZ
7h 59m1 stop
$399Delta
Find Deal
Tue, Dec 16 - Thu, Dec 25
United Airlines Logo
9:00 pm - 12:31 pmYYZ-COS
17h 31m2 stops
United Airlines Logo
5:59 am - 4:02 pmCOS-YYZ
8h 03m2 stops
$421United Airlines
Find Deal
Tue, Feb 17 - Sat, Feb 28
United Airlines Logo
9:00 pm - 11:24 amYYZ-COS
16h 24m1 stop
United Airlines Logo
9:27 am - 11:59 pmCOS-YYZ
12h 32m2 stops
$444United Airlines
Find Deal
Sun, Jan 4 - Thu, Jan 8
United Airlines Logo
6:20 am - 11:02 amYOW-COS
6h 42m1 stop
United Airlines Logo
11:43 am - 9:18 pmCOS-YOW
7h 35m1 stop
$446United Airlines
Find Deal
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
8:30 am - 9:11 pmYYZ-COS
14h 41m1 stop
United Airlines Logo
8:20 am - 6:03 pmCOS-YYZ
7h 43m2 stops
$451United Airlines
Find Deal
Thu, Dec 18 - Thu, Dec 25
United Airlines Logo
9:00 pm - 2:29 pmYYZ-COS
19h 29m2 stops
United Airlines Logo
6:00 am - 11:59 pmCOS-YYZ
15h 59m1 stop
$462United Airlines
Find Deal
Mon, Dec 15 - Fri, Dec 26
Delta Logo
7:00 am - 12:59 pmYUL-COS
7h 59m1 stop
Delta Logo
1:40 pm - 11:58 pmCOS-YUL
8h 18m1 stop
$544Delta
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Tue, Apr 14 - Wed, Apr 15
American Airlines Logo
10:00 am - 12:02 pmYOW-COS
28h 02m3 stops
American Airlines Logo
12:25 pm - 12:41 amCOS-YOW
34h 16m2 stops
$905American Airlines
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Mon, Dec 15 - Fri, Dec 19
American Airlines Logo
9:10 am - 11:47 pmYOW-COS
16h 37m3 stops
American Airlines Logo
12:22 pm - 4:53 pmCOS-YOW
26h 31m2 stops
$1,032American Airlines
Find Deal
Mon, Dec 29 - Thu, Jan 1

Delta flights from Region of Ontario to Colorado Springs

Our best Delta deals on Region of Ontario to Colorado Springs flight tickets
Delta
Dec 16
YYZ7:40 amToronto Pearson Intl
6h 56m
1 stop
COS12:36 pmColorado Springs
Dec 25
COS2:00 pmColorado Springs
7h 59m
1 stop
YYZ11:59 pmToronto Pearson Intl
$399
Find similar
Delta
Mar 10
YYZ6:15 amToronto Pearson Intl
8h 50m
1 stop
COS1:05 pmColorado Springs
Mar 11
COS1:40 pmColorado Springs
8h 26m
1 stop
YYZ12:06 amToronto Pearson Intl
$579
Find similar
Delta
Jan 4
YYZ6:10 amToronto Pearson Intl
18h 15m
2 stops
COS10:25 pmColorado Springs
Jan 8
COS7:59 amColorado Springs
12h 42m
2 stops
YYZ10:41 pmToronto Pearson Intl
$620
Find similar

United Airlines flights from Region of Ontario to Colorado Springs

Our best United Airlines deals on Region of Ontario to Colorado Springs flight tickets
United Airlines
Feb 1
YOW7:27 pmOttawa
15h 25m
2 stops
COS8:52 amColorado Springs
Feb 5
COS11:43 amColorado Springs
7h 35m
1 stop
YOW9:18 pmOttawa
$300
Find similar
United Airlines
Feb 17
YYZ9:00 pmToronto Pearson Intl
17h 31m
2 stops
COS12:31 pmColorado Springs
Feb 28
COS5:59 amColorado Springs
8h 03m
2 stops
YYZ4:02 pmToronto Pearson Intl
$421
Find similar
United Airlines
Jan 4
YYZ9:00 pmToronto Pearson Intl
16h 24m
1 stop
COS11:24 amColorado Springs
Jan 8
COS9:27 amColorado Springs
12h 32m
2 stops
YYZ11:59 pmToronto Pearson Intl
$444
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Colorado Springs 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, momondo users made 832,500 searches. Data last updated November 18, 2025.
Use the filters below to find and compare flights from Ontario to Colorado Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sun 2/1

7:27 pm-8:52 am

2 stops15h 25m

Colorado Springs

Thu 2/5

11:43 am-9:18 pm

1 stop7h 35m

$300

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Tue 12/16

6:10 am-5:19 pm

2 stops13h 09m

Colorado Springs

Thu 12/25

2:00 pm-11:59 pm

1 stop7h 59m

$399

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Tue 2/17

9:00 pm-12:31 pm

2 stops17h 31m

Colorado Springs

Sat 2/28

5:59 am-4:02 pm

2 stops8h 03m

$421

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Sun 1/4

9:00 pm-11:24 am

1 stop16h 24m

Colorado Springs

Thu 1/8

9:27 am-11:59 pm

2 stops12h 32m

$444

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sun 2/1

6:20 am-11:02 am

1 stop6h 42m

Colorado Springs

Thu 2/5

11:43 am-9:18 pm

1 stop7h 35m

$446

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Thu 12/18

8:30 am-9:11 pm

1 stop14h 41m

Colorado Springs

Thu 12/25

8:20 am-6:03 pm

2 stops7h 43m

$451

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Mon 12/15

9:00 pm-2:29 pm

2 stops19h 29m

Colorado Springs

Fri 12/26

6:00 am-11:59 pm

1 stop15h 59m

$462

MontrealColorado Springs

YUL - COS

YULCOS

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

7:00 am-12:59 pm

1 stop7h 59m

Colorado Springs

Wed 4/15

1:40 pm-11:58 pm

1 stop8h 18m

$544

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Mon 12/15

10:00 am-12:02 pm

3 stops28h 02m

Colorado Springs

Fri 12/19

12:25 pm-12:41 am

2 stops34h 16m

$905

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Mon 12/29

9:10 am-11:47 pm

3 stops16h 37m

Colorado Springs

Thu 1/1

12:22 pm-4:53 pm

2 stops26h 31m

$1,032

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Region of Ontario to Colorado Springs

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Colorado Springs?

The month of January is another great option to travel to Colorado Springs, with average flight prices from Region of Ontario averaging around $304.

What is the cheapest day to depart on your flight to Colorado Springs?

The cheapest day to depart from Region of Ontario to Colorado Springs is on a Tuesday when prices can be found for as low as $323. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Colorado Springs for around $564.

What is the cheapest time of day to depart on your flight to Colorado Springs?

Flying to Colorado Springs from Region of Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $255 when looking at flights departing at noon. Flights to Colorado Springs are more costly in the morning, with an average ticket price of $518. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Region of Ontario to Colorado Springs flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Colorado Springs

Direct flights

None
There are no direct flights from Region of Ontario to Colorado Springs. There are no popular flight routes from Region of Ontario to Colorado Springs.
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  • When did momondo last update prices for flights from Ontario to Colorado Springs Airport?

    Prices for flights from Ontario to Colorado Springs Airport were last updated today.

  • How old do you have to be to fly from Ontario to Colorado Springs Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Colorado Springs Airport.

  • What documentation or ID do you need to fly to Colorado Springs Airport?

    The required travel and health documents for your Colorado Springs Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado Springs Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Cañon City

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Colorado Springs?

Finding the right flight to Colorado Springs from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Colorado Springs quick and easy, saving you time and money.

Can I find flights from Ontario to Colorado Springs with flexible booking policies on momondo?

Yes. All flights to Colorado Springs from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Colorado Springs?

momondo provides multiple filters to help you find the best flight to Colorado Springs from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Colorado Springs right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Colorado Springs flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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