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Cheap flights from Denver to Ottawa from $326

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Ottawa departing on 1/29. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:59 pm - 5:13 pmDEN-YOW
15h 14m1 stop
Multiple Airlines Logo
9:30 am - 11:04 pmYOW-DEN
15h 34m1 stop
$326Multiple Airlines
Find Deal
Thu, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
11:59 pm - 5:13 pmDEN-YOW
15h 14m1 stop
Multiple Airlines Logo
9:25 am - 7:09 pmYOW-DEN
11h 44m1 stop
$347Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
11:59 pm - 5:13 pmDEN-YOW
15h 14m1 stop
Multiple Airlines Logo
4:15 pm - 9:49 pmYOW-DEN
31h 34m2 stops
$352Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
12:59 am - 5:25 pmDEN-YOW
14h 26m2 stops
Multiple Airlines Logo
9:25 am - 7:09 pmYOW-DEN
11h 44m1 stop
$353Multiple Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
5:59 pm - 2:27 pmDEN-YOW
18h 28m2 stops
United Airlines Logo
5:11 pm - 9:54 amYOW-DEN
18h 43m2 stops
$651United Airlines
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Wed, Jan 28 - Thu, Jan 29
Air Canada Logo
7:16 pm - 3:00 pmDEN-YOW
17h 44m1 stop
Air Canada Logo
5:25 pm - 8:53 amYOW-DEN
17h 28m1 stop
$688Air Canada
Find Deal
Wed, Nov 26 - Sun, Nov 30
United Airlines Logo
6:00 pm - 1:45 pmDEN-YOW
17h 45m2 stops
United Airlines Logo
6:52 am - 6:18 pmYOW-DEN
13h 26m2 stops
$723United Airlines
Find Deal
Tue, Apr 7 - Thu, Apr 9
Air Canada Logo
5:30 pm - 1:38 amDEN-YOW
6h 08m1 stop
Air Canada Logo
5:35 pm - 8:55 amYOW-DEN
17h 20m1 stop
$733Air Canada
Find Deal
Tue, Dec 23 - Tue, Jan 6
American Airlines Logo
12:35 pm - 12:41 amDEN-YOW
10h 06m2 stops
American Airlines Logo
9:15 am - 9:44 pmYOW-DEN
14h 29m2 stops
$767American Airlines
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Fri, Dec 26 - Sun, Jan 4
American Airlines Logo
6:44 am - 12:41 amDEN-YOW
15h 57m2 stops
American Airlines Logo
6:45 am - 11:16 pmYOW-DEN
18h 31m2 stops
$803American Airlines
Find Deal
Tue, Dec 23 - Tue, Jan 6

American Airlines flights from Denver to Ottawa

Our best American Airlines deals on Denver to Ottawa flight tickets
American Airlines
Dec 26
DEN12:35 pmDenver Intl
10h 06m
2 stops
YOW12:41 amOttawa
Jan 4
YOW9:15 amOttawa
14h 29m
2 stops
DEN9:44 pmDenver Intl
$767
Find similar
American Airlines
Dec 23
DEN6:44 amDenver Intl
15h 57m
2 stops
YOW12:41 amOttawa
Jan 6
YOW6:45 amOttawa
18h 31m
2 stops
DEN11:16 pmDenver Intl
$803
Find similar
American Airlines
Dec 3
DEN7:26 amDenver Intl
15h 15m
3 stops
YOW12:41 amOttawa
Dec 8
YOW6:45 amOttawa
11h 21m
2 stops
DEN4:06 pmDenver Intl
$820
Find similar

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Jan 28
DEN5:59 pmDenver Intl
18h 28m
2 stops
YOW2:27 pmOttawa
Jan 29
YOW5:11 pmOttawa
18h 43m
2 stops
DEN9:54 amDenver Intl
$651
Find similar
United Airlines
Apr 7
DEN6:00 pmDenver Intl
17h 45m
2 stops
YOW1:45 pmOttawa
Apr 9
YOW6:52 amOttawa
13h 26m
2 stops
DEN6:18 pmDenver Intl
$723
Find similar
United Airlines
Dec 3
DEN1:54 pmDenver Intl
18h 32m
2 stops
YOW10:26 amOttawa
Dec 10
YOW6:20 amOttawa
14h 00m
2 stops
DEN6:20 pmDenver Intl
$727
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Denver to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 1/29

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Sun 2/1

9:30 am-11:04 pm

1 stop15h 34m

$326

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 12/3

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Wed 12/10

9:25 am-7:09 pm

1 stop11h 44m

$347

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 12/3

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Wed 12/10

4:15 pm-9:49 pm

2 stops31h 34m

$352

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 12/2

12:59 am-5:25 pm

2 stops14h 26m

Ottawa

Wed 12/10

9:25 am-7:09 pm

1 stop11h 44m

$353

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 1/28

5:59 pm-2:27 pm

2 stops18h 28m

Ottawa

Thu 1/29

5:11 pm-9:54 am

2 stops18h 43m

$651

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 11/26

7:16 pm-3:00 pm

1 stop17h 44m

Ottawa

Sun 11/30

5:25 pm-8:53 am

1 stop17h 28m

$688

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 4/7

6:00 pm-1:45 pm

2 stops17h 45m

Ottawa

Thu 4/9

6:52 am-6:18 pm

2 stops13h 26m

$723

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 12/23

5:30 pm-1:38 am

1 stop6h 08m

Ottawa

Tue 1/6

5:35 pm-8:55 am

1 stop17h 20m

$733

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 12/26

12:35 pm-12:41 am

2 stops10h 06m

Ottawa

Sun 1/4

9:15 am-9:44 pm

2 stops14h 29m

$767

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 12/23

6:44 am-12:41 am

2 stops15h 57m

Ottawa

Tue 1/6

6:45 am-11:16 pm

2 stops18h 31m

$803

Flights are sorted by cheapest round-trip flights first.

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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

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Denver to Ottawa is on a Wednesday. Travelers who choose to depart for Ottawa on a Wednesday will often find tickets for as low as $391. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $756.

What is the cheapest time of day to depart on your flight to Ottawa?

In the afternoon is the cheapest time of day to fly from Denver to Ottawa when you can find flight prices for as low as $411. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $579 on average. Flights to Ottawa from Denver at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Denver to Ottawa flight prices changed over time?

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

Direct flights

None
There are no direct flights from Denver to Ottawa. There are no popular flight routes from Denver to Ottawa.
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  • 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 6h 08m.

  • 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?

  • 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?

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
WestJetPriceFrom $143Free CancellationRating
7.2
3,155 reviews
Search WestJet flights
Air CanadaPriceFrom $290Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
United AirlinesPriceFrom $309Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Calabogie
Brockville
Petawawa
Pembroke
Smiths Falls
Perth
Prescott
Winchester
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.

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