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

United Airlines and American Airlines 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 were last updated today.

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

As of September 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.

$186 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.

12:25 pm - 11:44 pmYOW Ottawa-DEN Denver Intl

13h 19m2 stops Winnipeg Minneapolis St Paul

12:59 pm - 12:44 amDEN Denver Intl-YOW Ottawa

9h 45m2 stops Atlanta Hartsfield-Jackson Toronto Pearson Intl

$416Delta

Mon, Oct 19 - Fri, Oct 30

5:30 am - 5:10 pmYOW Ottawa-DEN Denver Intl

13h 40m2 stops Toronto Pearson Intl Detroit Metropolitan Wayne County

11:11 am - 12:44 amDEN Denver Intl-YOW Ottawa

11h 33m2 stops Minneapolis St Paul Toronto Pearson Intl

$440Delta

Sat, Nov 21 - Thu, Nov 26

7:05 am - 8:20 amYOW Ottawa-DEN Denver Intl

27h 15m2 stops Fort Lauderdale Houston George Bush Intcntl

6:31 pm - 11:10 pmDEN Denver Intl-YOW Ottawa

26h 39m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$445Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

5:30 am - 11:53 pmYOW Ottawa-DEN Denver Intl

20h 23m3 stops Toronto Pearson Intl Calgary Phoenix Sky Harbor Intl

10:41 am - 11:34 amDEN Denver Intl-YOW Ottawa

22h 53m3 stops Atlanta Hartsfield-Jackson Newark Toronto Island

$459Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

6:25 am - 10:55 amYOW Ottawa-COS Colorado Springs

6h 30m1 stop Chicago O'Hare Intl

8:38 am - 9:35 pmCOS Colorado Springs-YOW Ottawa

10h 57m2 stops Denver Intl Chicago O'Hare Intl

$590United Airlines

Tue, Oct 20 - Wed, Oct 21

5:20 pm - 9:53 pmYOW Ottawa-COS Colorado Springs

6h 33m1 stop Chicago O'Hare Intl

8:00 am - 9:35 pmCOS Colorado Springs-YOW Ottawa

11h 35m1 stop Chicago O'Hare Intl

$590United Airlines

Tue, Oct 20 - Wed, Oct 21

6:25 am - 9:42 pmYOW Ottawa-COS Colorado Springs

17h 17m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

11:33 am - 9:35 pmCOS Colorado Springs-YOW Ottawa

8h 02m2 stops Denver Intl Chicago O'Hare Intl

$590United Airlines

Tue, Oct 20 - Wed, Oct 21

5:10 am - 10:27 amYOW Ottawa-DEN Denver Intl

7h 17m1 stop Toronto Pearson Intl

5:40 pm - 1:40 amDEN Denver Intl-YOW Ottawa

6h 00m1 stop Toronto Pearson Intl

$602Air Canada

Sat, Oct 24 - Fri, Oct 30

6:00 am - 10:31 amYOW Ottawa-DEN Denver Intl

6h 31m1 stop Montreal Pierre Elliott Trudeau Intl

11:35 am - 9:20 pmDEN Denver Intl-YOW Ottawa

7h 45m1 stop Toronto Pearson Intl

$603Air Canada

Wed, Oct 7 - Thu, Oct 22

6:00 am - 10:31 amYOW Ottawa-DEN Denver Intl

6h 31m1 stop Montreal Pierre Elliott Trudeau Intl

11:35 am - 9:20 pmDEN Denver Intl-YOW Ottawa

7h 45m1 stop Toronto Pearson Intl

$604Air Canada

Thu, Oct 15 - Thu, Oct 22

Cheap last minute flights

Enter your travel dates to find the best prices.

6:25 am - 12:45 pmYOW Ottawa-DEN Denver Intl

8h 20m1 stop Chicago O'Hare Intl

6:00 am - 9:35 pmDEN Denver Intl-YOW Ottawa

13h 35m1 stop Chicago O'Hare Intl

$678United Airlines

Thu, Sep 24 - Thu, Oct 1

6:00 am - 6:20 pmYOW Ottawa-DEN Denver Intl

14h 20m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

7:45 am - 5:16 pmDEN Denver Intl-YOW Ottawa

7h 31m1 stop Chicago O'Hare Intl

$678United Airlines

Thu, Sep 24 - Thu, Oct 1

6:25 am - 4:22 pmYOW Ottawa-DEN Denver Intl

11h 57m1 stop Chicago O'Hare Intl

11:59 pm - 1:10 pmDEN Denver Intl-YOW Ottawa

11h 11m2 stops Newark Toronto Pearson Intl

$747United Airlines

Thu, Sep 24 - Thu, Oct 1

6:00 am - 6:20 pmYOW Ottawa-DEN Denver Intl

14h 20m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

11:59 pm - 1:10 pmDEN Denver Intl-YOW Ottawa

11h 11m2 stops Newark Toronto Pearson Intl

$747United Airlines

Thu, Sep 24 - Thu, Oct 1

7:00 am - 7:52 amYOW Ottawa-DEN Denver Intl

26h 52m1 stop Orlando

6:45 pm - 5:35 amDEN Denver Intl-YOW Ottawa

32h 50m2 stops Phoenix Sky Harbor Intl Calgary

$869Multiple Airlines

Fri, Sep 25 - Fri, Oct 2

7:00 am - 9:24 pmYOW Ottawa-DEN Denver Intl

16h 24m3 stops Toronto Pearson Intl Fort Lauderdale Atlanta Hartsfield-Jackson

1:18 pm - 12:30 pmDEN Denver Intl-YOW Ottawa

21h 12m3 stops Phoenix Sky Harbor Intl Calgary Edmonton

$870Multiple Airlines

Thu, Sep 24 - Thu, Oct 1

7:00 am - 12:15 amYOW Ottawa-DEN Denver Intl

19h 15m2 stops Orlando Houston George Bush Intcntl

10:47 pm - 5:35 amDEN Denver Intl-YOW Ottawa

28h 48m3 stops Phoenix Sky Harbor Intl Edmonton Calgary

$905Multiple Airlines

Fri, Sep 25 - Fri, Oct 2

10:40 am - 6:19 pmYOW Ottawa-DEN Denver Intl

9h 39m1 stop Washington, D.C. Reagan-National

11:59 pm - 9:11 amDEN Denver Intl-YOW Ottawa

7h 12m1 stop Newark

$929United Airlines

Fri, Sep 25 - Fri, Oct 2

6:00 am - 5:50 pmYOW Ottawa-DEN Denver Intl

13h 50m3 stops Washington, D.C. Dulles Intl Indianapolis Chicago O'Hare Intl

6:00 am - 5:16 pmDEN Denver Intl-YOW Ottawa

9h 16m1 stop Chicago O'Hare Intl

$929United Airlines

Thu, Sep 24 - Thu, Oct 1

6:00 am - 12:02 pmYOW Ottawa-DEN Denver Intl

8h 02m1 stop Washington, D.C. Dulles Intl

7:45 am - 9:35 pmDEN Denver Intl-YOW Ottawa

11h 50m1 stop Chicago O'Hare Intl

$929United Airlines

Thu, Sep 24 - Thu, Oct 1

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Delta flights from Ottawa to Colorado

Our best Delta deals on Ottawa to Colorado flight tickets

Delta

Oct 19

YOW12:25 pmOttawa

13h 19m

2 stops

DEN11:44 pmDenver Intl

Oct 30

DEN12:59 pmDenver Intl

9h 45m

2 stops

YOW12:44 amOttawa

$416

Delta

Nov 21

YOW5:30 amOttawa

13h 40m

2 stops

DEN5:10 pmDenver Intl

Nov 26

DEN11:11 amDenver Intl

11h 33m

2 stops

YOW12:44 amOttawa

$440

Delta

Nov 5

YOW5:30 amOttawa

14h 02m

2 stops

DEN5:32 pmDenver Intl

Nov 12

DEN10:35 amDenver Intl

12h 09m

2 stops

YOW12:44 amOttawa

$475

Air Canada flights from Ottawa to Colorado

Our best Air Canada deals on Ottawa to Colorado flight tickets

Air Canada

Oct 24

YOW5:10 amOttawa

7h 17m

1 stop

DEN10:27 amDenver Intl

Oct 30

DEN5:40 pmDenver Intl

6h 00m

1 stop

YOW1:40 amOttawa

$602

Air Canada

Oct 7

YOW6:00 amOttawa

6h 31m

1 stop

DEN10:31 amDenver Intl

Oct 22

DEN11:35 amDenver Intl

7h 45m

1 stop

YOW9:20 pmOttawa

$603

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Mon 10/19

12:25 pm-11:44 pm

2 stops13h 19m

Denver Intl

Fri 10/30

12:59 pm-12:44 am

2 stops9h 45m

$416

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Sat 11/21

5:30 am-5:10 pm

2 stops13h 40m

Denver Intl

Thu 11/26

11:11 am-12:44 am

2 stops11h 33m

$440

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 11/3

7:05 am-8:20 am

2 stops27h 15m

Denver Intl

Tue 11/17

6:31 pm-11:10 pm

2 stops26h 39m

$445

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 11/3

5:30 am-11:53 pm

3 stops20h 23m

Denver Intl

Tue 11/17

10:41 am-11:34 am

3 stops22h 53m

$459

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 10/20

6:25 am-10:55 am

1 stop6h 30m

Colorado Springs

Wed 10/21

8:38 am-9:35 pm

2 stops10h 57m

$590

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 10/20

5:20 pm-9:53 pm

1 stop6h 33m

Colorado Springs

Wed 10/21

8:00 am-9:35 pm

1 stop11h 35m

$590

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Tue 10/20

6:25 am-9:42 pm

2 stops17h 17m

Colorado Springs

Wed 10/21

11:33 am-9:35 pm

2 stops8h 02m

$590

Quickest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Sat 10/24

5:10 am-10:27 am

1 stop7h 17m

Denver Intl

Fri 10/30

5:40 pm-1:40 am

1 stop6h 00m

$602

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Wed 10/7

6:00 am-10:31 am

1 stop6h 31m

Denver Intl

Thu 10/22

11:35 am-9:20 pm

1 stop7h 45m

$603

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Thu 10/15

6:00 am-10:31 am

1 stop6h 31m

Denver Intl

Thu 10/22

11:35 am-9:20 pm

1 stop7h 45m

$604

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 October is, on average, the cheapest month to fly to Colorado from Ottawa, with most prices found around $437. The month of September is another great option to travel to Colorado, with average flight prices from Ottawa averaging around $499.

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	$186
Fastest flight time	6h 11m
Direct flights	None

The best one-way flight to Colorado from Ottawa in the past 72 hours is $186. The best round-trip flight deal from Ottawa to Colorado found on momondo in the last 72 hours is $416.

The fastest flight from Ottawa to Colorado takes 6h 11m

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 were last updated today.
How many operators does momondo search for flights from Ottawa Airport to Colorado?
As of September 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 10,222 reviews		Search United Airlines flights
Air Canada	PriceFrom $566	Free Cancellation	Rating 7.1 11,662 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.