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

United Airlines, Air Canada, and WestJet are the most popular carriers operating from Colorado to Ottawa

What airlines fly to Ottawa?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Ottawa from Colorado according to our data. Air Canada is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ottawa?

Average flight duration from Colorado to Ottawa depends on which airport you fly into and out of. Flying from Denver to Montreal Pierre Elliott Trudeau Intl Airport is 3h 43m on average, while flying from Colorado Springs to Montreal Pierre Elliott Trudeau Intl Airport is 7h 11m on average. Montreal Pierre Elliott Trudeau Intl Airport is the most popular airport in Ottawa.

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

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

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

As of September 2025, there are 3 operators available to choose from for flights from Colorado to Ottawa Airport.

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

What documentation or ID do you need to fly to Ottawa Airport?

The travel and health documents required for your trip to Ottawa Airport 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 Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$138 Cheap Flights from Colorado to Ottawa in 2025/26

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Find the cheapest flights from Colorado to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 am - 4:43 pmDEN-YOW

8h 43m1 stop

5:15 am - 11:58 amYOW-DEN

8h 43m1 stop

$327United Airlines

Find Deal

Wed, Oct 22 - Sat, Oct 25

5:55 pm - 9:58 amDEN-YOW

14h 03m1 stop

5:50 pm - 11:15 pmYOW-DEN

7h 25m1 stop

$331United Airlines

Find Deal

Tue, Oct 7 - Tue, Oct 14

9:26 pm - 4:34 pmDEN-YOW

17h 08m2 stops

9:30 am - 11:16 pmYOW-DEN

15h 46m1 stop

$399Multiple Airlines

Find Deal

Mon, Oct 20 - Mon, Oct 27

12:16 am - 5:13 pmDEN-YOW

14h 57m1 stop

9:30 am - 8:15 amYOW-DEN

24h 45m1 stop

$404Multiple Airlines

Find Deal

Wed, Oct 29 - Sun, Nov 2

7:16 pm - 3:00 pmDEN-YOW

17h 44m1 stop

5:25 pm - 8:53 amYOW-DEN

17h 28m1 stop

$662Air Canada

Find Deal

Fri, Oct 31 - Sun, Nov 2

7:16 pm - 3:00 pmDEN-YOW

17h 44m1 stop

5:25 pm - 8:53 amYOW-DEN

17h 28m1 stop

$674Air Canada

Find Deal

Thu, Nov 6 - Tue, Nov 11

11:26 am - 12:22 amDEN-YOW

10h 56m2 stops

5:55 am - 5:28 pmYOW-DEN

13h 33m2 stops

$702Delta

Find Deal

Wed, Oct 22 - Sat, Oct 25

12:50 pm - 12:22 amDEN-YOW

9h 32m2 stops

3:35 pm - 11:48 amYOW-DEN

22h 13m2 stops

$756Delta

Find Deal

Tue, Oct 7 - Tue, Oct 14

6:15 am - 12:40 amDEN-YOW

16h 25m2 stops

7:15 pm - 6:24 pmYOW-DEN

49h 09m2 stops

$918WestJet

Find Deal

Mon, Oct 20 - Mon, Oct 27

6:25 am - 12:40 amDEN-YOW

40h 15m2 stops

6:00 am - 7:14 pmYOW-DEN

15h 14m2 stops

$920WestJet

Find Deal

Tue, Dec 23 - Tue, Jan 6

United Airlines flights from Colorado to Ottawa

Our best United Airlines deals on Colorado to Ottawa flight tickets

United Airlines

Oct 22

DEN6:00 amDenver Intl

8h 43m

1 stop

YOW4:43 pmOttawa

Oct 25

YOW5:15 amOttawa

8h 43m

1 stop

DEN11:58 amDenver Intl

$327

Find similar

United Airlines

Oct 7

DEN5:55 pmDenver Intl

14h 03m

1 stop

YOW9:58 amOttawa

Oct 14

YOW5:50 pmOttawa

7h 25m

1 stop

DEN11:15 pmDenver Intl

$331

Find similar

United Airlines

Oct 22

DEN9:36 amDenver Intl

5h 30m

1 stop

YOW5:06 pmOttawa

Oct 25

YOW11:55 amOttawa

10h 24m

2 stops

DEN8:19 pmDenver Intl

$342

Find similar

Air Canada flights from Colorado to Ottawa

Our best Air Canada deals on Colorado to Ottawa flight tickets

Air Canada

Oct 31

DEN7:16 pmDenver Intl

17h 44m

1 stop

YOW3:00 pmOttawa

Nov 2

YOW5:25 pmOttawa

17h 28m

1 stop

DEN8:53 amDenver Intl

$662

Find similar

Air Canada

Nov 6

DEN7:16 pmDenver Intl

17h 44m

1 stop

YOW3:00 pmOttawa

Nov 11

YOW5:25 pmOttawa

17h 28m

1 stop

DEN8:53 amDenver Intl

$674

Find similar

Air Canada

Oct 30

DEN11:49 amDenver Intl

10h 29m

1 stop

YOW12:18 amOttawa

Nov 2

YOW5:25 pmOttawa

17h 28m

1 stop

DEN8:53 amDenver Intl

$747

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/22

6:00 am-4:43 pm

1 stop8h 43m

Ottawa

Sat 10/25

5:15 am-11:58 am

1 stop8h 43m

$327

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 10/7

5:55 pm-9:58 am

1 stop14h 03m

Ottawa

Tue 10/14

5:50 pm-11:15 pm

1 stop7h 25m

$331

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 10/20

9:26 pm-4:34 pm

2 stops17h 08m

Ottawa

Mon 10/27

9:30 am-11:16 pm

1 stop15h 46m

$399

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/29

12:16 am-5:13 pm

1 stop14h 57m

Ottawa

Sun 11/2

9:30 am-8:15 am

1 stop24h 45m

$404

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 10/31

7:16 pm-3:00 pm

1 stop17h 44m

Ottawa

Sun 11/2

5:25 pm-8:53 am

1 stop17h 28m

$662

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 11/6

7:16 pm-3:00 pm

1 stop17h 44m

Ottawa

Tue 11/11

5:25 pm-8:53 am

1 stop17h 28m

$674

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/22

11:26 am-12:22 am

2 stops10h 56m

Ottawa

Sat 10/25

5:55 am-5:28 pm

2 stops13h 33m

$702

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 10/7

12:50 pm-12:22 am

2 stops9h 32m

Ottawa

Tue 10/14

3:35 pm-11:48 am

2 stops22h 13m

$756

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 10/20

6:15 am-12:40 am

2 stops16h 25m

Ottawa

Mon 10/27

7:15 pm-6:24 pm

2 stops49h 09m

$918

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 12/23

6:25 am-12:40 am

2 stops40h 15m

Ottawa

Tue 1/6

6:00 am-7:14 pm

2 stops15h 14m

$920

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 Colorado to Ottawa

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

Other information

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Colorado to Ottawa is on a Wednesday. Travelers who choose to depart for Ottawa on a Wednesday will often find tickets for as low as $391. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $756.

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

In the afternoon is the cheapest time of day to fly from Colorado to Ottawa when you can find flight prices for as low as $411. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $579 on average. Flights to Ottawa from Colorado at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Colorado to Ottawa flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Colorado to Ottawa Airport?
Prices for flights from Colorado to Ottawa Airport were last updated today.
How many operators does momondo search for flights from Colorado to Ottawa Airport?
As of September 2025, there are 3 operators available to choose from for flights from Colorado to Ottawa Airport.
How old do you have to be to fly from Colorado to Ottawa 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 Colorado to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents required for your trip to Ottawa Airport 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 Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Colorado to Ottawa

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $143	Free Cancellation	Rating 7.2 3,105 reviews	Search WestJet flights
Air Canada	PriceFrom $290	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom $315	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

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Calabogie

Brockville

Pembroke

Petawawa

Perth

Prescott

Winchester

Wakefield

Why use momondo?

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

It is quick and easy to find Colorado to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Colorado to Ottawa.

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

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