Which airlines fly to Colorado?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Colorado from Ottawa according to our data. Air Canada is the first choice among our users, with 75% of people opting to fly with this airline when travelling to Colorado. Keep in mind that there are 3 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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

Delta and Air Canada are the most popular carriers 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 are updated daily.

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

As of October 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?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Colorado may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Colorado. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 306 Cheap Flights from Ottawa to Colorado in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

8:25 a.m. - 12:54 a.m.YOW Ottawa-DEN Denver Intl

18h 29m3 stops Toronto Island Nashville Intl Las Vegas Harry Reid Intl

8:54 a.m. - 8:09 p.m.DEN Denver Intl-YOW Ottawa

9h 15m2 stops Nashville Intl Toronto Island

C$ 592Multiple Airlines

Mon, 23 Nov - Tue, 1 Dec

12:45 p.m. - 8:39 a.m.YOW Ottawa-DEN Denver Intl

21h 54m2 stops Toronto Pearson Intl Tampa

7:12 p.m. - 12:50 a.m.DEN Denver Intl-YOW Ottawa

27h 38m3 stops Atlanta Hartsfield-Jackson Tampa Toronto Pearson Intl

C$ 688Multiple Airlines

Fri, 20 Nov - Fri, 27 Nov

7:00 a.m. - 10:16 p.m.YOW Ottawa-DEN Denver Intl

17h 16m2 stops Toronto Pearson Intl Tampa

7:00 a.m. - 10:15 p.m.DEN Denver Intl-YOW Ottawa

13h 15m2 stops Phoenix Sky Harbor Intl Toronto Pearson Intl

C$ 732Multiple Airlines

Thu, 12 Nov - Wed, 18 Nov

12:45 p.m. - 8:39 a.m.YOW Ottawa-DEN Denver Intl

21h 54m2 stops Toronto Pearson Intl Tampa

8:22 p.m. - 10:15 p.m.DEN Denver Intl-YOW Ottawa

23h 53m3 stops Detroit Metropolitan Wayne County Tampa Toronto Pearson Intl

C$ 732Multiple Airlines

Fri, 20 Nov - Mon, 23 Nov

7:45 a.m. - 6:13 p.m.YOW Ottawa-DEN Denver Intl

12h 28m1 stop Vancouver Intl

1:30 p.m. - 9:50 p.m.DEN Denver Intl-YOW Ottawa

6h 20m1 stop Toronto Pearson Intl

C$ 811Air Canada

Fri, 20 Nov - Tue, 24 Nov

7:45 a.m. - 6:13 p.m.YOW Ottawa-DEN Denver Intl

12h 28m1 stop Vancouver Intl

5:40 p.m. - 1:40 a.m.DEN Denver Intl-YOW Ottawa

6h 00m1 stop Toronto Pearson Intl

C$ 820Air Canada

Wed, 4 Nov - Sun, 8 Nov

5:20 p.m. - 9:53 p.m.YOW Ottawa-COS Colorado Springs

6h 33m1 stop Chicago O'Hare Intl

9:23 a.m. - 10:35 p.m.COS Colorado Springs-YOW Ottawa

11h 12m2 stops Denver Intl Newark

C$ 853United Airlines

Tue, 20 Oct - Wed, 21 Oct

6:00 a.m. - 9:53 p.m.YOW Ottawa-COS Colorado Springs

17h 53m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

10:27 a.m. - 9:35 p.m.COS Colorado Springs-YOW Ottawa

9h 08m2 stops Denver Intl Chicago O'Hare Intl

C$ 853United Airlines

Tue, 20 Oct - Wed, 21 Oct

2:55 p.m. - 8:27 p.m.YOW Ottawa-DEN Denver Intl

7h 32m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 a.m. - 7:52 p.m.DEN Denver Intl-YOW Ottawa

6h 27m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 853Air Canada

Mon, 23 Nov - Tue, 1 Dec

5:20 p.m. - 9:53 p.m.YOW Ottawa-COS Colorado Springs

6h 33m1 stop Chicago O'Hare Intl

8:00 a.m. - 9:35 p.m.COS Colorado Springs-YOW Ottawa

11h 35m1 stop Chicago O'Hare Intl

C$ 853United Airlines

Tue, 20 Oct - Wed, 21 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

6:55 a.m. - 2:51 p.m.YOW Ottawa-DEN Denver Intl

9h 56m1 stop Vancouver Intl

6:00 a.m. - 1:59 p.m.DEN Denver Intl-YOW Ottawa

5h 59m1 stop Chicago O'Hare Intl

C$ 1,327Air Canada

Tue, 6 Oct - Tue, 13 Oct

6:00 a.m. - 4:33 p.m.YOW Ottawa-DEN Denver Intl

12h 33m1 stop Washington, D.C. Dulles Intl

7:45 a.m. - 5:16 p.m.DEN Denver Intl-YOW Ottawa

7h 31m1 stop Chicago O'Hare Intl

C$ 1,490United Airlines

Mon, 5 Oct - Thu, 8 Oct

6:00 a.m. - 3:17 p.m.YOW Ottawa-DEN Denver Intl

11h 17m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

9:35 a.m. - 5:16 p.m.DEN Denver Intl-YOW Ottawa

5h 41m1 stop Chicago O'Hare Intl

C$ 1,490United Airlines

Mon, 5 Oct - Thu, 8 Oct

4:15 p.m. - 7:52 a.m.YOW Ottawa-DEN Denver Intl

17h 37m1 stop Orlando

1:53 p.m. - 1:05 a.m.DEN Denver Intl-YOW Ottawa

33h 12m2 stops Mexico City Benito Juarez Cancun

C$ 1,527Multiple Airlines

Mon, 5 Oct - Thu, 8 Oct

6:55 a.m. - 5:52 p.m.YOW Ottawa-DEN Denver Intl

12h 57m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson

6:20 a.m. - 5:35 p.m.DEN Denver Intl-YOW Ottawa

9h 15m2 stops Detroit Metropolitan Wayne County Toronto Pearson Intl

C$ 1,540Delta

Tue, 6 Oct - Tue, 13 Oct

6:00 a.m. - 10:31 a.m.YOW Ottawa-DEN Denver Intl

6h 31m1 stop Montreal Pierre Elliott Trudeau Intl

8:17 a.m. - 7:52 p.m.DEN Denver Intl-YOW Ottawa

9h 35m2 stops Chicago O'Hare Intl Toronto Island

C$ 1,549Air Canada

Tue, 6 Oct - Tue, 13 Oct

7:00 a.m. - 7:37 p.m.YOW Ottawa-DEN Denver Intl

14h 37m3 stops Toronto Pearson Intl New York LaGuardia Charlotte Douglas

11:53 p.m. - 8:00 p.m.DEN Denver Intl-YOW Ottawa

18h 07m3 stops Miami Washington, D.C. Reagan-National Toronto Pearson Intl

C$ 1,762American Airlines

Tue, 6 Oct - Tue, 13 Oct

7:00 a.m. - 7:37 p.m.YOW Ottawa-DEN Denver Intl

14h 37m3 stops Toronto Pearson Intl New York LaGuardia Charlotte Douglas

6:09 p.m. - 2:55 p.m.DEN Denver Intl-YOW Ottawa

18h 46m2 stops Chicago O'Hare Intl Toronto Pearson Intl

C$ 1,767American Airlines

Tue, 6 Oct - Tue, 13 Oct

7:00 a.m. - 9:47 p.m.YOW Ottawa-DEN Denver Intl

16h 47m3 stops Toronto Pearson Intl Chicago O'Hare Intl Dallas/Fort Worth

6:30 a.m. - 8:00 p.m.DEN Denver Intl-YOW Ottawa

11h 30m2 stops Charlotte Douglas Toronto Pearson Intl

C$ 2,554American Airlines

Mon, 5 Oct - Thu, 8 Oct

7:00 a.m. - 6:58 p.m.YOW Ottawa-DEN Denver Intl

13h 58m3 stops Toronto Pearson Intl Chicago O'Hare Intl Dallas/Fort Worth

11:59 p.m. - 2:55 p.m.DEN Denver Intl-YOW Ottawa

12h 56m3 stops Charlotte Douglas Philadelphia Toronto Pearson Intl

C$ 2,662American Airlines

Mon, 5 Oct - Thu, 8 Oct

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Air Canada flights from Ottawa to Colorado

Our best Air Canada deals on Ottawa to Colorado flight tickets

Air Canada

20 Nov

YOW7:45 a.m.Ottawa

12h 28m

1 stop

DEN6:13 p.m.Denver Intl

24 Nov

DEN1:30 p.m.Denver Intl

6h 20m

1 stop

YOW9:50 p.m.Ottawa

C$ 811

Air Canada

23 Nov

YOW2:55 p.m.Ottawa

7h 32m

1 stop

DEN8:27 p.m.Denver Intl

1 Dec

DEN11:25 a.m.Denver Intl

6h 27m

1 stop

YOW7:52 p.m.Ottawa

C$ 853

Air Canada

4 Nov

YOW7:45 a.m.Ottawa

12h 28m

1 stop

DEN6:13 p.m.Denver Intl

8 Nov

DEN5:40 p.m.Denver Intl

6h 00m

1 stop

YOW1:40 a.m.Ottawa

C$ 854

Delta flights from Ottawa to Colorado

Our best Delta deals on Ottawa to Colorado flight tickets

Delta

16 Oct

YOW12:25 p.m.Ottawa

13h 19m

2 stops

DEN11:44 p.m.Denver Intl

19 Oct

DEN6:20 a.m.Denver Intl

16h 00m

2 stops

YOW12:20 a.m.Ottawa

C$ 932

Delta

11 Oct

YOW12:25 p.m.Ottawa

13h 19m

2 stops

DEN11:44 p.m.Denver Intl

14 Oct

DEN6:00 a.m.Denver Intl

16h 20m

2 stops

YOW12:20 a.m.Ottawa

C$ 1,204

Delta

6 Oct

YOW6:55 a.m.Ottawa

12h 57m

2 stops

DEN5:52 p.m.Denver Intl

13 Oct

DEN6:20 a.m.Denver Intl

9h 15m

2 stops

YOW5:35 p.m.Ottawa

C$ 1,540

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Mon 23/11

8:25 a.m.-12:54 a.m.

3 stops18h 29m

Denver Intl

Tue 1/12

8:54 a.m.-8:09 p.m.

2 stops9h 15m

C$ 592

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 20/11

12:45 p.m.-8:39 a.m.

2 stops21h 54m

Denver Intl

Fri 27/11

7:12 p.m.-12:50 a.m.

3 stops27h 38m

C$ 688

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Thu 12/11

7:00 a.m.-10:16 p.m.

2 stops17h 16m

Denver Intl

Wed 18/11

7:00 a.m.-10:15 p.m.

2 stops13h 15m

C$ 732

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 20/11

12:45 p.m.-8:39 a.m.

2 stops21h 54m

Denver Intl

Mon 23/11

8:22 p.m.-10:15 p.m.

3 stops23h 53m

C$ 732

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 20/11

7:45 a.m.-6:13 p.m.

1 stop12h 28m

Denver Intl

Tue 24/11

1:30 p.m.-9:50 p.m.

1 stop6h 20m

C$ 811

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Wed 4/11

7:45 a.m.-6:13 p.m.

1 stop12h 28m

Denver Intl

Sun 8/11

5:40 p.m.-1:40 a.m.

1 stop6h 00m

C$ 820

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 20/10

5:20 p.m.-9:53 p.m.

1 stop6h 33m

Colorado Springs

Wed 21/10

9:23 a.m.-10:35 p.m.

2 stops11h 12m

C$ 853

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 20/10

6:00 a.m.-9:53 p.m.

3 stops17h 53m

Colorado Springs

Wed 21/10

10:27 a.m.-9:35 p.m.

2 stops9h 08m

C$ 853

Quickest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Mon 23/11

2:55 p.m.-8:27 p.m.

1 stop7h 32m

Denver Intl

Tue 1/12

11:25 a.m.-7:52 p.m.

1 stop6h 27m

C$ 853

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 20/10

5:20 p.m.-9:53 p.m.

1 stop6h 33m

Colorado Springs

Wed 21/10

8:00 a.m.-9:35 p.m.

1 stop11h 35m

C$ 853

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 cheapest month to fly to Colorado from Ottawa is in October. Flight prices, which tend to average around C$ 706, are often lower during this time because this is during the off-season. If you don’t want to visit Colorado in October, then you should wait until April to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 800.

Can stopping save me money on Ottawa to Colorado flights?

You could potentially save up to 14% 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

Best price found	C$ 306
Fastest flight time	6h 24m
Direct flights	None

The best one-way flight to Colorado from Ottawa in the past 72 hours is C$ 306. The best round-trip flight deal from Ottawa to Colorado found on momondo in the last 72 hours is C$ 592.

The fastest flight from Ottawa to Colorado takes 6h 24m

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

Search flight deals

Frequently asked questions about flying 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 are updated daily.
How many operators does momondo search for flights from Ottawa Airport to Colorado?
As of October 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?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Colorado may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Colorado. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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 C$ 485	Free Cancellation	Rating 7.4 10,280 reviews		Search United Airlines flights
Air Canada	PriceFrom C$ 748	Free Cancellation	Rating 7.1 11,712 reviews		Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to Colorado. momondo saves you time and could save you money on your trip.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from Ottawa.

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

Yes momondo offers price alerts on flights to Colorado from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.