What is the cheapest airline that flies from Ottawa to Colorado?

United Airlines is the most popular carrier operating from Ottawa to Colorado

When did momondo last update prices for flights from Ottawa Airport to Colorado?

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

How many operators does momondo search for flights from Ottawa Airport to Colorado?

As of March 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Colorado.

How old do you have to be to fly from Ottawa Airport to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$231 Cheap Flights from Ottawa to Colorado in 2026

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Find the cheapest flights from Ottawa to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 12:36 pm

YOW

COS

9h 36m

2 stops

1:33 pm - 1:36 am

COS

YOW

10h 03m

2 stops

$364Air Canada

Sun, Apr 19 - Thu, Apr 23

6:00 am - 12:36 pm

YOW

COS

8h 36m

2 stops

1:33 pm - 10:03 am

COS

YOW

18h 30m

2 stops

$420United Airlines

Sun, Apr 19 - Thu, Apr 23

10:44 am - 8:46 pm

YOW

COS

12h 02m

2 stops

6:00 am - 1:59 pm

COS

YOW

5h 59m

1 stop

$428United Airlines

Tue, Apr 28 - Wed, Apr 29

10:44 am - 8:46 pm

YOW

COS

12h 02m

2 stops

6:00 am - 10:05 pm

COS

YOW

14h 05m

2 stops

$429United Airlines

Tue, Apr 28 - Wed, Apr 29

10:44 am - 8:46 pm

YOW

COS

12h 02m

2 stops

7:00 am - 9:35 pm

COS

YOW

12h 35m

2 stops

$463United Airlines

Tue, Apr 28 - Wed, Apr 29

10:35 am - 12:20 am

YOW

DEN

15h 45m

1 stop

7:30 am - 9:30 pm

DEN

YOW

12h 00m

1 stop

$469Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

10:35 am - 12:20 am

YOW

DEN

15h 45m

1 stop

7:30 am - 9:30 pm

DEN

YOW

12h 00m

1 stop

$473Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

4:20 pm - 8:21 am

YOW

DEN

18h 01m

1 stop

6:00 am - 12:35 pm

DEN

YOW

28h 35m

2 stops

$477Multiple Airlines

Sun, Apr 5 - Thu, Apr 9

10:35 am - 9:44 pm

YOW

DEN

13h 09m

1 stop

7:30 am - 9:30 pm

DEN

YOW

12h 00m

1 stop

$484Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

4:15 pm - 8:09 am

YOW

DEN

17h 54m

2 stops

9:43 am - 9:30 pm

DEN

YOW

9h 47m

1 stop

$486Multiple Airlines

Sat, Apr 4 - Thu, Apr 9

WestJet flights from Ottawa to Colorado

Our best WestJet deals on Ottawa to Colorado flight tickets

WestJet

May 21

YOW6:25 pmOttawa

18h 55m

2 stops

DEN11:20 amDenver Intl

May 27

DEN12:15 pmDenver Intl

22h 15m

2 stops

YOW12:30 pmOttawa

$741

WestJet

Apr 1

YOW5:45 pmOttawa

28h 12m

2 stops

DEN7:57 pmDenver Intl

Apr 8

DEN6:30 amDenver Intl

16h 10m

2 stops

YOW12:40 amOttawa

$973

American Airlines flights from Ottawa to Colorado

Our best American Airlines deals on Ottawa to Colorado flight tickets

American Airlines

Apr 20

YOW6:45 amOttawa

19h 14m

2 stops

DEN11:59 pmDenver Intl

Apr 27

DEN6:19 amDenver Intl

10h 07m

2 stops

YOW6:26 pmOttawa

$697

American Airlines

Apr 23

YOW6:45 amOttawa

18h 00m

2 stops

DEN10:45 pmDenver Intl

May 1

DEN2:21 pmDenver Intl

27h 39m

2 stops

YOW8:00 pmOttawa

$722

American Airlines

Apr 23

YOW6:45 amOttawa

19h 14m

2 stops

DEN11:59 pmDenver Intl

May 1

DEN2:21 pmDenver Intl

27h 39m

2 stops

YOW8:00 pmOttawa

$723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sun 4/19

5:00 am-12:36 pm

2 stops9h 36m

Colorado Springs

Thu 4/23

1:33 pm-1:36 am

2 stops10h 03m

$364

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sun 4/19

6:00 am-12:36 pm

2 stops8h 36m

Colorado Springs

Thu 4/23

1:33 pm-10:03 am

2 stops18h 30m

$420

Quickest round-trip

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 4/28

10:44 am-8:46 pm

2 stops12h 02m

Colorado Springs

Wed 4/29

6:00 am-1:59 pm

1 stop5h 59m

$428

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 4/28

10:44 am-8:46 pm

2 stops12h 02m

Colorado Springs

Wed 4/29

6:00 am-10:05 pm

2 stops14h 05m

$429

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 4/28

10:44 am-8:46 pm

2 stops12h 02m

Colorado Springs

Wed 4/29

7:00 am-9:35 pm

2 stops12h 35m

$463

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 4/18

10:35 am-12:20 am

1 stop15h 45m

Denver Intl

Sat 4/25

7:30 am-9:30 pm

1 stop12h 00m

$469

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 4/18

10:35 am-12:20 am

1 stop15h 45m

Denver Intl

Sat 4/25

7:30 am-9:30 pm

1 stop12h 00m

$473

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 4/5

4:20 pm-8:21 am

1 stop18h 01m

Denver Intl

Thu 4/9

6:00 am-12:35 pm

2 stops28h 35m

$477

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 4/18

10:35 am-9:44 pm

1 stop13h 09m

Denver Intl

Sat 4/25

7:30 am-9:30 pm

1 stop12h 00m

$484

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 4/4

4:15 pm-8:09 am

2 stops17h 54m

Denver Intl

Thu 4/9

9:43 am-9:30 pm

1 stop9h 47m

$486

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to Colorado

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

Prices

Airlines

What is the cheapest month to fly to Colorado?

The month of February is, on average, the cheapest month to fly to Colorado from Ottawa, with most prices found around $316. The month of September is another great option to travel to Colorado, with average flight prices from Ottawa averaging around $325.

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $509 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Ottawa for as low as $256 on momondo.

Can stopping save me money on Ottawa to Colorado flights?

You could potentially save up to 60% on your flight if you consider stops on a Ottawa to Colorado flight.

Cheap Ottawa to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Colorado

Fastest flight time	6h 32m
Direct flights	None

The fastest flight from Ottawa to Colorado takes 6h 32m

There are no direct flights from Ottawa to Colorado. There are no popular flight routes from Ottawa to Colorado.

Search flight deals

When did momondo last update prices for flights from Ottawa Airport to Colorado?
Prices for flights from Ottawa Airport to Colorado were last updated today.
How many operators does momondo search for flights from Ottawa Airport to Colorado?
As of March 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Colorado.
How old do you have to be to fly from Ottawa Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ottawa to Colorado

Compare and see reviews for airlines that fly from Ottawa to Colorado with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $251	Free Cancellation	Rating 7.4 9,455 reviews		Search United Airlines flights
Air Canada	PriceFrom $267	Free Cancellation	Rating 7.1 10,830 reviews		Search Air Canada flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to Colorado for you.

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

Yes. momondo enables you to select and highlight flights to Colorado from Ottawa with this policy.

How can momondo help me find flights from Ottawa to Colorado?

momondo helps you find the best flight between Ottawa and Colorado by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Colorado, momondo offers a useful price alert feature which will track prices for flights to Colorado from Ottawa and alert you when they change.