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

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

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 70% 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.

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 August 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$ 252 Cheap Flights from Ottawa to Colorado in 2026

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.

4:15 p.m. - 11:20 a.m.YOW Ottawa-DEN Denver Intl

21h 05m1 stop Calgary

12:15 p.m. - 5:35 a.m.DEN Denver Intl-YOW Ottawa

15h 20m1 stop Calgary

C$ 495WestJet

Thu, 24 Sep - Thu, 1 Oct

7:00 a.m. - 3:37 p.m.YOW Ottawa-DEN Denver Intl

10h 37m1 stop Orlando

10:47 p.m. - 7:20 p.m.DEN Denver Intl-YOW Ottawa

18h 33m2 stops Phoenix Sky Harbor Intl Calgary

C$ 529Multiple Airlines

Fri, 18 Sep - Tue, 22 Sep

4:15 p.m. - 11:20 a.m.YOW Ottawa-DEN Denver Intl

21h 05m1 stop Calgary

10:47 p.m. - 7:20 p.m.DEN Denver Intl-YOW Ottawa

18h 33m2 stops Phoenix Sky Harbor Intl Calgary

C$ 539Multiple Airlines

Sat, 19 Sep - Tue, 22 Sep

7:00 a.m. - 3:37 p.m.YOW Ottawa-DEN Denver Intl

10h 37m1 stop Orlando

10:47 p.m. - 7:20 p.m.DEN Denver Intl-YOW Ottawa

18h 33m2 stops Phoenix Sky Harbor Intl Calgary

C$ 553Multiple Airlines

Fri, 18 Sep - Tue, 22 Sep

6:15 a.m. - 2:40 p.m.YOW Ottawa-COS Colorado Springs

10h 25m2 stops Chicago O'Hare Intl Denver Intl

12:16 p.m. - 9:31 p.m.COS Colorado Springs-YOW Ottawa

7h 15m1 stop Chicago O'Hare Intl

C$ 743United Airlines

Tue, 12 Jan - Thu, 14 Jan

6:15 a.m. - 11:18 a.m.YOW Ottawa-COS Colorado Springs

7h 03m1 stop Chicago O'Hare Intl

12:16 p.m. - 9:31 p.m.COS Colorado Springs-YOW Ottawa

7h 15m1 stop Chicago O'Hare Intl

C$ 743United Airlines

Tue, 12 Jan - Thu, 14 Jan

6:15 a.m. - 2:40 p.m.YOW Ottawa-COS Colorado Springs

10h 25m2 stops Chicago O'Hare Intl Denver Intl

12:16 p.m. - 9:31 p.m.COS Colorado Springs-YOW Ottawa

7h 15m1 stop Chicago O'Hare Intl

C$ 752United Airlines

Tue, 12 Jan - Thu, 14 Jan

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

6h 31m1 stop Montreal Pierre Elliott Trudeau Intl

9:40 a.m. - 7:45 p.m.DEN Denver Intl-YOW Ottawa

8h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 790Air Canada

Wed, 14 Oct - Sat, 17 Oct

2:35 p.m. - 6:46 p.m.YOW Ottawa-DEN Denver Intl

6h 11m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 a.m. - 8:50 p.m.DEN Denver Intl-YOW Ottawa

7h 25m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 798Air Canada

Sat, 10 Oct - Fri, 16 Oct

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$ 801Air Canada

Thu, 19 Nov - Sun, 22 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

2:35 p.m. - 6:55 p.m.YOW Ottawa-DEN Denver Intl

6h 20m1 stop Montreal Pierre Elliott Trudeau Intl

9:40 a.m. - 7:45 p.m.DEN Denver Intl-YOW Ottawa

8h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 1,027Air Canada

Tue, 18 Aug - Sun, 6 Sep

8:35 a.m. - 11:20 a.m.YOW Ottawa-DEN Denver Intl

28h 45m1 stop Calgary

8:31 a.m. - 12:20 a.m.DEN Denver Intl-YOW Ottawa

13h 49m2 stops Nashville Intl Toronto Pearson Intl

C$ 1,095Multiple Airlines

Tue, 18 Aug - Sun, 6 Sep

6:25 a.m. - 2:31 p.m.YOW Ottawa-DEN Denver Intl

10h 06m1 stop Chicago O'Hare Intl

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

5h 59m1 stop Chicago O'Hare Intl

C$ 1,102Air Canada

Mon, 17 Aug - Fri, 21 Aug

6:25 a.m. - 2:31 p.m.YOW Ottawa-DEN Denver Intl

10h 06m1 stop Chicago O'Hare Intl

4:16 p.m. - 12:45 a.m.DEN Denver Intl-YOW Ottawa

6h 29m1 stop Toronto Pearson Intl

C$ 1,106Air Canada

Mon, 17 Aug - Fri, 21 Aug

5:20 p.m. - 11:54 p.m.YOW Ottawa-DEN Denver Intl

8h 34m1 stop Chicago O'Hare Intl

11:25 a.m. - 7:45 p.m.DEN Denver Intl-YOW Ottawa

6h 20m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 1,113Air Canada

Mon, 17 Aug - Sun, 6 Sep

5:20 p.m. - 11:54 p.m.YOW Ottawa-DEN Denver Intl

8h 34m1 stop Chicago O'Hare Intl

4:16 p.m. - 1:35 a.m.DEN Denver Intl-YOW Ottawa

7h 19m1 stop Toronto Pearson Intl

C$ 1,113Air Canada

Mon, 17 Aug - Fri, 21 Aug

4:00 p.m. - 3:48 a.m.YOW Ottawa-DEN Denver Intl

13h 48m2 stops Toronto Pearson Intl Las Vegas Harry Reid Intl

11:59 p.m. - 11:48 p.m.DEN Denver Intl-YOW Ottawa

21h 49m1 stop Orlando

C$ 1,184Multiple Airlines

Mon, 17 Aug - Sun, 6 Sep

5:20 p.m. - 9:44 p.m.YOW Ottawa-DEN Denver Intl

6h 24m1 stop Chicago O'Hare Intl

4:16 p.m. - 12:45 a.m.DEN Denver Intl-YOW Ottawa

6h 29m1 stop Toronto Pearson Intl

C$ 1,197Air Canada

Mon, 17 Aug - Fri, 21 Aug

6:25 a.m. - 2:31 p.m.YOW Ottawa-DEN Denver Intl

10h 06m1 stop Chicago O'Hare Intl

4:16 p.m. - 12:45 a.m.DEN Denver Intl-YOW Ottawa

6h 29m1 stop Toronto Pearson Intl

C$ 1,273Air Canada

Mon, 17 Aug - Fri, 21 Aug

6:25 a.m. - 5:56 p.m.YOW Ottawa-DEN Denver Intl

13h 31m1 stop Chicago O'Hare Intl

8:17 a.m. - 8:44 p.m.DEN Denver Intl-YOW Ottawa

10h 27m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,349Air Canada

Mon, 17 Aug - Fri, 21 Aug

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WestJet flights from Ottawa to Colorado

Our best WestJet deals on Ottawa to Colorado flight tickets

WestJet

24 Sep

YOW4:15 p.m.Ottawa

21h 05m

1 stop

DEN11:20 a.m.Denver Intl

1 Oct

DEN12:15 p.m.Denver Intl

15h 20m

1 stop

YOW5:35 a.m.Ottawa

C$ 495

WestJet

24 Sep

YOW6:15 p.m.Ottawa

19h 05m

2 stops

DEN11:20 a.m.Denver Intl

1 Oct

DEN12:15 p.m.Denver Intl

22h 15m

2 stops

YOW12:30 p.m.Ottawa

C$ 645

WestJet

10 Sep

YOW4:15 p.m.Ottawa

21h 05m

1 stop

DEN11:20 a.m.Denver Intl

14 Sep

DEN12:15 p.m.Denver Intl

15h 20m

1 stop

YOW5:35 a.m.Ottawa

C$ 793

Delta flights from Ottawa to Colorado

Our best Delta deals on Ottawa to Colorado flight tickets

Delta

18 Sep

YOW12:25 p.m.Ottawa

13h 10m

2 stops

DEN11:35 p.m.Denver Intl

22 Sep

DEN6:30 a.m.Denver Intl

9h 05m

2 stops

YOW5:35 p.m.Ottawa

C$ 761

Delta

22 Sep

YOW6:55 a.m.Ottawa

14h 10m

2 stops

DEN7:05 p.m.Denver Intl

26 Sep

DEN6:30 a.m.Denver Intl

9h 05m

2 stops

YOW5:35 p.m.Ottawa

C$ 770

Delta

9 Sep

YOW6:55 a.m.Ottawa

12h 26m

2 stops

DEN5:21 p.m.Denver Intl

16 Sep

DEN6:30 a.m.Denver Intl

9h 05m

2 stops

YOW5:35 p.m.Ottawa

C$ 772

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Thu 24/9

4:15 p.m.-11:20 a.m.

1 stop21h 05m

Denver Intl

Thu 1/10

12:15 p.m.-5:35 a.m.

1 stop15h 20m

C$ 495

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 18/9

7:00 a.m.-3:37 p.m.

1 stop10h 37m

Denver Intl

Tue 22/9

10:47 p.m.-7:20 p.m.

2 stops18h 33m

C$ 529

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Sat 19/9

4:15 p.m.-11:20 a.m.

1 stop21h 05m

Denver Intl

Tue 22/9

10:47 p.m.-7:20 p.m.

2 stops18h 33m

C$ 539

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 18/9

7:00 a.m.-3:37 p.m.

1 stop10h 37m

Denver Intl

Tue 22/9

10:47 p.m.-7:20 p.m.

2 stops18h 33m

C$ 553

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 12/1

6:15 a.m.-2:40 p.m.

2 stops10h 25m

Colorado Springs

Thu 14/1

12:16 p.m.-9:31 p.m.

1 stop7h 15m

C$ 743

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 12/1

6:15 a.m.-11:18 a.m.

1 stop7h 03m

Colorado Springs

Thu 14/1

12:16 p.m.-9:31 p.m.

1 stop7h 15m

C$ 743

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 12/1

6:15 a.m.-2:40 p.m.

2 stops10h 25m

Colorado Springs

Thu 14/1

12:16 p.m.-9:31 p.m.

1 stop7h 15m

C$ 752

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Wed 14/10

6:00 a.m.-10:31 a.m.

1 stop6h 31m

Denver Intl

Sat 17/10

9:40 a.m.-7:45 p.m.

1 stop8h 05m

C$ 790

Quickest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Sat 10/10

2:35 p.m.-6:46 p.m.

1 stop6h 11m

Denver Intl

Fri 16/10

11:25 a.m.-8:50 p.m.

1 stop7h 25m

C$ 798

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Thu 19/11

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

1 stop12h 28m

Denver Intl

Sun 22/11

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

1 stop6h 20m

C$ 801

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 September. Flight prices, which tend to average around C$ 405, are often lower during this time because this is during the off-season. If you don’t want to visit Colorado in September, then you should wait until October to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 463.

Can stopping save me money on Ottawa to Colorado flights?

You could potentially save up to 32% 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	8h 22m
Direct flights	None

The fastest flight from Ottawa to Colorado takes 8h 22m

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 August 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$ 307	Free Cancellation	Rating 7.4 10,113 reviews		Search United Airlines flights
Air Canada	PriceFrom C$ 399	Free Cancellation	Rating 7.1 11,466 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.