What airlines fly to Ottawa?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Ottawa from Denver according to our data. Air Canada is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 3 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Denver Intl Airport to Ottawa Airport is 2 as of November 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport 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.

$204 Cheap Flights from Denver to Ottawa in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Ottawa

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 am - 11:40 pmDEN Denver Intl-YOW Ottawa

14h 55m2 stops Phoenix Sky Harbor Intl Calgary

4:40 pm - 8:09 amYOW Ottawa-DEN Denver Intl

17h 29m1 stop Tampa

$431Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

6:45 am - 11:40 pmDEN Denver Intl-YOW Ottawa

14h 55m2 stops Phoenix Sky Harbor Intl Calgary

5:30 am - 11:49 pmYOW Ottawa-DEN Denver Intl

20h 19m3 stops Toronto Pearson Intl Calgary Phoenix Sky Harbor Intl

$439Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

10:29 pm - 11:40 pmDEN Denver Intl-YOW Ottawa

23h 11m3 stops Phoenix Sky Harbor Intl Edmonton Calgary

5:30 am - 11:49 pmYOW Ottawa-DEN Denver Intl

20h 19m3 stops Toronto Pearson Intl Calgary Phoenix Sky Harbor Intl

$444Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

8:59 am - 8:08 pmDEN Denver Intl-YOW Ottawa

9h 09m2 stops Nashville Intl Toronto Island

5:30 am - 11:47 pmYOW Ottawa-DEN Denver Intl

20h 17m3 stops Toronto Pearson Intl Winnipeg Phoenix Sky Harbor Intl

$460Multiple Airlines

Fri, Dec 11 - Wed, Dec 16

11:25 am - 7:47 pmDEN Denver Intl-YOW Ottawa

6h 22m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 am - 10:35 amYOW Ottawa-DEN Denver Intl

6h 35m1 stop Toronto Pearson Intl

$810Air Canada

Thu, Nov 26 - Thu, Dec 3

11:25 am - 7:52 pmDEN Denver Intl-YOW Ottawa

6h 27m1 stop Montreal Pierre Elliott Trudeau Intl

7:45 am - 6:13 pmYOW Ottawa-DEN Denver Intl

12h 28m1 stop Vancouver Intl

$874Air Canada

Mon, Feb 15 - Sun, Feb 28

12:51 am - 1:11 pmDEN Denver Intl-YOW Ottawa

10h 20m1 stop Newark

3:10 pm - 11:44 pmYOW Ottawa-DEN Denver Intl

10h 34m1 stop Newark

$877United Airlines

Tue, Dec 22 - Mon, Jan 4

11:25 am - 7:52 pmDEN Denver Intl-YOW Ottawa

6h 27m1 stop Montreal Pierre Elliott Trudeau Intl

7:45 am - 6:13 pmYOW Ottawa-DEN Denver Intl

12h 28m1 stop Vancouver Intl

$904Air Canada

Thu, Jan 7 - Mon, Jan 11

7:45 am - 9:56 pmDEN Denver Intl-YOW Ottawa

12h 11m1 stop Newark

6:15 am - 10:33 amYOW Ottawa-DEN Denver Intl

6h 18m1 stop Chicago O'Hare Intl

$915United Airlines

Thu, Mar 11 - Sun, Mar 21

7:45 am - 9:26 pmDEN Denver Intl-YOW Ottawa

11h 41m1 stop Chicago O'Hare Intl

4:36 pm - 10:17 pmYOW Ottawa-DEN Denver Intl

7h 41m1 stop Chicago O'Hare Intl

$915United Airlines

Sat, Mar 13 - Mon, Mar 22

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 11/26

6:45 am-11:40 pm

2 stops14h 55m

Ottawa

Thu 12/3

4:40 pm-8:09 am

1 stop17h 29m

$431

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 11/26

6:45 am-11:40 pm

2 stops14h 55m

Ottawa

Thu 12/3

5:30 am-11:49 pm

3 stops20h 19m

$439

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 11/26

10:29 pm-11:40 pm

3 stops23h 11m

Ottawa

Thu 12/3

5:30 am-11:49 pm

3 stops20h 19m

$444

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Fri 12/11

8:59 am-8:08 pm

2 stops9h 09m

Ottawa

Wed 12/16

5:30 am-11:47 pm

3 stops20h 17m

$460

Quickest round-trip

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 11/26

11:25 am-7:47 pm

1 stop6h 22m

Ottawa

Thu 12/3

6:00 am-10:35 am

1 stop6h 35m

$810

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Mon 2/15

11:25 am-7:52 pm

1 stop6h 27m

Ottawa

Sun 2/28

7:45 am-6:13 pm

1 stop12h 28m

$874

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Tue 12/22

12:51 am-1:11 pm

1 stop10h 20m

Ottawa

Mon 1/4

3:10 pm-11:44 pm

1 stop10h 34m

$877

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 1/7

11:25 am-7:52 pm

1 stop6h 27m

Ottawa

Mon 1/11

7:45 am-6:13 pm

1 stop12h 28m

$904

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 3/11

7:45 am-9:56 pm

1 stop12h 11m

Ottawa

Sun 3/21

6:15 am-10:33 am

1 stop6h 18m

$915

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Sat 3/13

7:45 am-9:26 pm

1 stop11h 41m

Ottawa

Mon 3/22

4:36 pm-10:17 pm

1 stop7h 41m

$915

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 Denver 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

What is the cheapest month to fly to Ottawa?

In general, August is the cheapest month to fly from Denver to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $691. The month of February is another great option to travel to Ottawa, with average flight prices from Denver averaging around $750.

When to book flights from Denver to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Ottawa according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Ottawa (DEN to YOW) flight deals and tips

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

Best Price Found	$204
Fastest flight time	9h 09m
Direct flights	None

The best one-way flight to Ottawa from Denver in the past 72 hours is $204. The best round-trip flight deal from Denver to Ottawa found on momondo in the last 72 hours is $431.

The fastest flight from Denver to Ottawa takes 9h 09m

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

Search flight deals

Frequently asked questions about flying from Denver to Ottawa

How far is Denver Intl to Ottawa by plane?
Denver Intl and Ottawa are 1530.4 mi apart from one another. By plane, this route typically takes 9h 09m.
When did momondo last update prices for flights from Denver Intl Airport to Ottawa Airport?
Prices for flights from Denver Intl Airport to Ottawa Airport were last updated today.
How many operators does momondo search for flights from Denver Intl Airport to Ottawa Airport?
The number of operators available for flights from Denver Intl Airport to Ottawa Airport is 2 as of November 2026.
How old do you have to be to fly from Denver Intl Airport to Ottawa Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport 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.
What is the most popular airline from Denver to Ottawa?
Based on momondo bookings for flights between Denver and Ottawa, the leading airline is Air Canada, making up 51% of the total bookings. Other popular airlines include United Airlines with 49%.

Best airlines flying from Denver to Ottawa

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $666	Free Cancellation	Rating 7.1 11,847 reviews		Search Air Canada flights
United Airlines	PriceFrom $727	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ottawa from Denver.

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

Flights from Denver to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 Ottawa from Denver.

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

Of course. momondo tracks the price of Denver to Ottawa flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Denver to Ottawa from $204

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Ottawa departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Denver to Ottawa

What is the cheapest month to fly to Ottawa?

What airlines fly to Ottawa?

When to book flights from Denver to Ottawa

Cheap Denver to Ottawa (DEN to YOW) flight deals and tips

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Frequently asked questions about flying from Denver to Ottawa

Best airlines flying from Denver to Ottawa

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

Traveling to a place near Ottawa?

Why use momondo?

An easier way to manage your Ottawa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Ottawa. Availability may vary depending on flight origin and airline.

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