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Cheap flights from Denver to Ottawa from $246

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 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m
1 stop
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$493WestJet
Thu, Jul 9 - Fri, Jul 17
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
8:15 pm - 11:20 am
YOW
-
DEN
17h 05m
1 stop
$498WestJet
Thu, Sep 10 - Wed, Sep 16
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m
1 stop
WestJet Logo
8:15 pm - 11:20 am
YOW
-
DEN
17h 05m
1 stop
$500WestJet
Thu, Jul 9 - Fri, Jul 17
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
$504WestJet
Tue, Aug 4 - Sat, Aug 8
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
7:20 am - 11:20 am
YOW
-
DEN
30h 00m
1 stop
$510WestJet
Thu, Sep 10 - Wed, Sep 16
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$511WestJet
Thu, Sep 10 - Wed, Sep 16
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$513WestJet
Thu, Sep 24 - Sun, Sep 27
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
$516WestJet
Tue, Aug 4 - Sat, Aug 8
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$546WestJet
Thu, Oct 1 - Sun, Oct 4
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
22h 15m
2 stops
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
43h 05m
2 stops
$547WestJet
Thu, Sep 24 - Tue, Sep 29

WestJet flights from Denver to Ottawa

Our best WestJet deals on Denver to Ottawa flight tickets
WestJet
Jul 9
DEN12:15 pmDenver Intl
10h 25m
1 stop
YOW12:40 amOttawa
Jul 17
YOW6:15 pmOttawa
19h 05m
2 stops
DEN11:20 amDenver Intl
$493
WestJet
Sep 10
DEN12:15 pmDenver Intl
15h 20m
1 stop
YOW5:35 amOttawa
Sep 16
YOW8:15 pmOttawa
17h 05m
1 stop
DEN11:20 amDenver Intl
$498
WestJet
Jul 9
DEN12:15 pmDenver Intl
10h 25m
1 stop
YOW12:40 amOttawa
Jul 17
YOW8:15 pmOttawa
17h 05m
1 stop
DEN11:20 amDenver Intl
$500

Air Canada flights from Denver to Ottawa

Our best Air Canada deals on Denver to Ottawa flight tickets
Air Canada
May 30
DEN11:25 amDenver Intl
7h 21m
1 stop
YOW8:46 pmOttawa
Jun 2
YOW5:05 amOttawa
7h 28m
1 stop
DEN10:33 amDenver Intl
$1,014
Air Canada
May 31
DEN8:00 amDenver Intl
7h 07m
1 stop
YOW5:07 pmOttawa
Jun 5
YOW5:05 amOttawa
9h 30m
1 stop
DEN12:35 pmDenver Intl
$1,093

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 May 25, 2026.
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

Cheapest round-trip

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 7/9

12:15 pm-12:40 am

1 stop10h 25m

Ottawa

Fri 7/17

6:15 pm-11:20 am

2 stops19h 05m

$493

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/10

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Wed 9/16

8:15 pm-11:20 am

1 stop17h 05m

$498
Quickest round-trip

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 7/9

12:15 pm-12:40 am

1 stop10h 25m

Ottawa

Fri 7/17

8:15 pm-11:20 am

1 stop17h 05m

$500

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 8/4

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Sat 8/8

4:15 pm-11:20 am

1 stop21h 05m

$504

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/10

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Wed 9/16

7:20 am-11:20 am

1 stop30h 00m

$510

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/10

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Wed 9/16

6:15 pm-11:20 am

2 stops19h 05m

$511

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/24

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Sun 9/27

6:15 pm-11:20 am

2 stops19h 05m

$513

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 8/4

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Sat 8/8

4:15 pm-11:20 am

1 stop21h 05m

$516

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 10/1

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Sun 10/4

6:15 pm-11:20 am

2 stops19h 05m

$546

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/24

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Tue 9/29

6:15 pm-11:20 am

2 stops43h 05m

$547

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ottawa from

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 typical price of a round-trip flight between Denver and Ottawa?

What is the cheapest month to fly to Ottawa?

In general, November 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 $0. The month of October is another great option to travel to Ottawa, with average flight prices from Denver averaging around $397.

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

Fastest flight time

6h 14m

Direct flights

None
The fastest flight from Denver to Ottawa takes 6h 14m
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 6h 14m.

  • 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
Air CanadaPriceFrom $186Free CancellationRating
7.1
11,083 reviews
Search Air Canada flights
United AirlinesPriceFrom $376Free CancellationRating
7.4
9,747 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
Pembroke
Brockville
Petawawa
Smiths Falls
Calabogie
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.

An easier way to manage your Ottawa trip

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