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 70% 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 October 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.

$242 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:59 pm - 4:45 pmDEN Denver Intl-YOW Ottawa

14h 46m1 stop Orlando

8:30 am - 11:49 pmYOW Ottawa-DEN Denver Intl

17h 19m2 stops Edmonton Phoenix Sky Harbor Intl

$427Multiple Airlines

Wed, Nov 25 - Wed, Dec 2

8:46 pm - 11:45 pmDEN Denver Intl-YOW Ottawa

24h 59m2 stops Dallas/Fort Worth Fort Lauderdale

4:40 pm - 8:13 amYOW Ottawa-DEN Denver Intl

17h 33m1 stop Tampa

$428Multiple Airlines

Thu, Dec 3 - Tue, Dec 8

9:00 am - 2:32 pmDEN Denver Intl-YOW Ottawa

27h 32m2 stops Atlanta Hartsfield-Jackson Newark

8:00 am - 3:40 pmYOW Ottawa-DEN Denver Intl

9h 40m1 stop Orlando

$428Multiple Airlines

Wed, Dec 9 - Wed, Dec 16

7:25 am - 11:40 pmDEN Denver Intl-YOW Ottawa

14h 15m2 stops Phoenix Sky Harbor Intl Calgary

4:40 pm - 8:13 amYOW Ottawa-DEN Denver Intl

17h 33m1 stop Tampa

$435Multiple Airlines

Wed, Dec 2 - Tue, Dec 8

5:55 pm - 1:11 pmDEN Denver Intl-YOW Ottawa

17h 16m1 stop Newark

6:00 am - 9:35 pmYOW Ottawa-DEN Denver Intl

17h 35m1 stop Newark

$874United Airlines

Fri, Dec 4 - Tue, Dec 8

5:55 pm - 1:11 pmDEN Denver Intl-YOW Ottawa

17h 16m1 stop Newark

6:00 am - 7:44 pmYOW Ottawa-DEN Denver Intl

15h 44m1 stop Newark

$874United Airlines

Fri, Dec 4 - Mon, Dec 7

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

$897Air Canada

Mon, Feb 15 - Sun, Feb 28

5:55 pm - 1:11 pmDEN Denver Intl-YOW Ottawa

17h 16m1 stop Newark

4:36 pm - 9:59 pmYOW Ottawa-DEN Denver Intl

7h 23m1 stop Chicago O'Hare Intl

$926United Airlines

Thu, Dec 3 - Fri, Dec 4

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

6h 27m1 stop Montreal Pierre Elliott Trudeau Intl

2:55 pm - 8:27 pmYOW Ottawa-DEN Denver Intl

7h 32m1 stop Montreal Pierre Elliott Trudeau Intl

$929Air Canada

Fri, Dec 4 - Sun, Dec 6

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

6h 22m1 stop Montreal Pierre Elliott Trudeau Intl

2:55 pm - 8:27 pmYOW Ottawa-DEN Denver Intl

7h 32m1 stop Montreal Pierre Elliott Trudeau Intl

$929Air Canada

Wed, Dec 2 - Fri, Dec 4

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Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets

Delta

Nov 6

DEN7:15 amDenver Intl

14h 25m

2 stops

YOW11:40 pmOttawa

Nov 16

YOW5:30 amOttawa

13h 40m

2 stops

DEN5:10 pmDenver Intl

$1,064

Delta

Nov 8

DEN6:00 amDenver Intl

15h 40m

2 stops

YOW11:40 pmOttawa

Nov 16

YOW5:30 amOttawa

13h 40m

2 stops

DEN5:10 pmDenver Intl

$1,070

Delta

Nov 6

DEN6:00 amDenver Intl

15h 40m

2 stops

YOW11:40 pmOttawa

Nov 15

YOW5:30 amOttawa

11h 44m

2 stops

DEN3:14 pmDenver Intl

$1,130

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets

United Airlines

Nov 7

DEN11:59 pmDenver Intl

13h 08m

1 stop

YOW3:07 pmOttawa

Nov 16

YOW10:30 amOttawa

15h 49m

1 stop

DEN12:19 amDenver Intl

$1,144

United Airlines

Nov 8

DEN11:59 pmDenver Intl

11h 12m

1 stop

YOW1:11 pmOttawa

Nov 15

YOW12:10 pmOttawa

6h 40m

1 stop

DEN4:50 pmDenver Intl

$1,190

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Wed 11/25

11:59 pm-4:45 pm

1 stop14h 46m

Ottawa

Wed 12/2

8:30 am-11:49 pm

2 stops17h 19m

$427

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 12/3

8:46 pm-11:45 pm

2 stops24h 59m

Ottawa

Tue 12/8

4:40 pm-8:13 am

1 stop17h 33m

$428

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Wed 12/9

9:00 am-2:32 pm

2 stops27h 32m

Ottawa

Wed 12/16

8:00 am-3:40 pm

1 stop9h 40m

$428

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Wed 12/2

7:25 am-11:40 pm

2 stops14h 15m

Ottawa

Tue 12/8

4:40 pm-8:13 am

1 stop17h 33m

$435

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Fri 12/4

5:55 pm-1:11 pm

1 stop17h 16m

Ottawa

Tue 12/8

6:00 am-9:35 pm

1 stop17h 35m

$874

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Fri 12/4

5:55 pm-1:11 pm

1 stop17h 16m

Ottawa

Mon 12/7

6:00 am-7:44 pm

1 stop15h 44m

$874

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

$897

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Thu 12/3

5:55 pm-1:11 pm

1 stop17h 16m

Ottawa

Fri 12/4

4:36 pm-9:59 pm

1 stop7h 23m

$926

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Fri 12/4

11:25 am-7:52 pm

1 stop6h 27m

Ottawa

Sun 12/6

2:55 pm-8:27 pm

1 stop7h 32m

$929

Quickest round-trip

DenverOttawa

DEN Denver Intl - YOW Ottawa

DENYOW

Denver Intl

Wed 12/2

11:25 am-7:47 pm

1 stop6h 22m

Ottawa

Fri 12/4

2:55 pm-8:27 pm

1 stop7h 32m

$929

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	$242
Fastest flight time	7h 07m
Direct flights	None

The best one-way flight to Ottawa from Denver in the past 72 hours is $242. The best round-trip flight deal from Denver to Ottawa found on momondo in the last 72 hours is $427.

The fastest flight from Denver to Ottawa takes 7h 07m

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 7h 07m.
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 October 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 52% of the total bookings. Other popular airlines include United Airlines with 48%.

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 11,823 reviews		Search Air Canada flights
United Airlines	PriceFrom $727	Free Cancellation	Rating 7.3 10,444 reviews		Search United Airlines flights

Gatineau

Brockville

Pembroke

Calabogie

Prescott

Petawawa

Smiths Falls

Perth

Wakefield

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.

An easier way to manage your Ottawa trip

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Cheap flights from Denver to Ottawa from $242

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 12/24. 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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Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets

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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

Best Price Found

Fastest flight time

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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.

Find better results for your trip to Canada

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Fly your favorite airline to Ottawa

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ottawa

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

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