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Cheap flights from Denver to Ottawa from $140

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 5/12. 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.
Multiple Airlines Logo
1:16 pm - 11:35 am
DEN
-
YOW
20h 19m
2 stops
Multiple Airlines Logo
4:20 pm - 8:20 am
YOW
-
DEN
18h 00m
1 stop
$396Multiple Airlines
Sat, Mar 7 - Mon, Mar 9
Multiple Airlines Logo
8:17 am - 5:25 pm
DEN
-
YOW
31h 08m
2 stops
Multiple Airlines Logo
10:35 am - 9:40 pm
YOW
-
DEN
13h 05m
1 stop
$405Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
6:30 am - 6:23 pm
DEN
-
YOW
33h 53m
2 stops
Multiple Airlines Logo
9:30 am - 11:09 pm
YOW
-
DEN
15h 39m
1 stop
$411Multiple Airlines
Thu, Mar 12 - Wed, Mar 18
Multiple Airlines Logo
9:19 pm - 5:25 pm
DEN
-
YOW
18h 06m
2 stops
Multiple Airlines Logo
10:35 am - 12:18 am
YOW
-
DEN
15h 43m
1 stop
$417Multiple Airlines
Mon, Mar 16 - Thu, Mar 19
WestJet Logo
12:15 pm - 5:40 am
DEN
-
YOW
15h 25m
1 stop
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$419WestJet
Wed, May 13 - Sun, May 17
WestJet Logo
12:15 pm - 5:40 am
DEN
-
YOW
15h 25m
1 stop
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
$420WestJet
Wed, May 13 - Sun, May 17
Multiple Airlines Logo
11:59 pm - 5:13 pm
DEN
-
YOW
15h 14m
1 stop
Multiple Airlines Logo
3:55 pm - 9:41 pm
YOW
-
DEN
31h 46m
2 stops
$455Multiple Airlines
Mon, Feb 23 - Sun, Mar 1
Multiple Airlines Logo
4:15 pm - 5:13 pm
DEN
-
YOW
22h 58m
2 stops
Multiple Airlines Logo
10:35 am - 12:42 am
YOW
-
DEN
16h 07m
1 stop
$461Multiple Airlines
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
11:59 pm - 5:13 pm
DEN
-
YOW
15h 14m
1 stop
Multiple Airlines Logo
10:35 am - 12:42 am
YOW
-
DEN
16h 07m
1 stop
$471Multiple Airlines
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
12:15 pm - 5:40 am
DEN
-
YOW
15h 25m
1 stop
Multiple Airlines Logo
2:20 pm - 12:09 pm
YOW
-
DEN
23h 49m
2 stops
$475Multiple Airlines
Wed, May 13 - Sun, May 17

Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets
Delta
May 13
DEN6:05 amDenver Intl
9h 30m
2 stops
YOW5:35 pmOttawa
May 17
YOW12:25 pmOttawa
13h 16m
2 stops
DEN11:41 pmDenver Intl
$538
Delta
Jun 3
DEN6:05 amDenver Intl
9h 30m
2 stops
YOW5:35 pmOttawa
Jun 10
YOW5:55 amOttawa
14h 03m
2 stops
DEN5:58 pmDenver Intl
$558

Air Canada flights from Denver to Ottawa

Our best Air Canada deals on Denver to Ottawa flight tickets
Air Canada
Jun 19
DEN7:50 pmDenver Intl
10h 39m
1 stop
YOW8:29 amOttawa
Jun 23
YOW6:00 amOttawa
6h 33m
1 stop
DEN10:33 amDenver Intl
$656
Air Canada
Jun 3
DEN11:25 amDenver Intl
7h 26m
1 stop
YOW8:51 pmOttawa
Jun 10
YOW6:00 amOttawa
6h 34m
1 stop
DEN10:34 amDenver Intl
$659
Air Canada
Jun 19
DEN7:50 pmDenver Intl
10h 39m
1 stop
YOW8:29 amOttawa
Jun 23
YOW9:30 amOttawa
9h 43m
1 stop
DEN5:13 pmDenver Intl
$715

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 February 10, 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

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 3/7

1:16 pm-11:35 am

2 stops20h 19m

Ottawa

Mon 3/9

4:20 pm-8:20 am

1 stop18h 00m

$396

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 3/24

8:17 am-5:25 pm

2 stops31h 08m

Ottawa

Tue 3/31

10:35 am-9:40 pm

1 stop13h 05m

$405

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 3/12

6:30 am-6:23 pm

2 stops33h 53m

Ottawa

Wed 3/18

9:30 am-11:09 pm

1 stop15h 39m

$411

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 3/16

9:19 pm-5:25 pm

2 stops18h 06m

Ottawa

Thu 3/19

10:35 am-12:18 am

1 stop15h 43m

$417

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 5/13

12:15 pm-5:40 am

1 stop15h 25m

Ottawa

Sun 5/17

6:15 pm-11:20 am

2 stops19h 05m

$419

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 5/13

12:15 pm-5:40 am

1 stop15h 25m

Ottawa

Sun 5/17

4:15 pm-11:20 am

1 stop21h 05m

$420

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 2/23

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Sun 3/1

3:55 pm-9:41 pm

2 stops31h 46m

$455

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 2/23

4:15 pm-5:13 pm

2 stops22h 58m

Ottawa

Sat 2/28

10:35 am-12:42 am

1 stop16h 07m

$461

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 2/23

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Sat 2/28

10:35 am-12:42 am

1 stop16h 07m

$471

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 5/13

12:15 pm-5:40 am

1 stop15h 25m

Ottawa

Sun 5/17

2:20 pm-12:09 pm

2 stops23h 49m

$475

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

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

Fastest flight time

9h 30m

Direct flights

None
The fastest flight from Denver to Ottawa takes 9h 30m
There are no direct flights from Denver to Ottawa. There are no popular flight routes from Denver to Ottawa.
Search flight deals

  • 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 30m.

  • 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 $130Free CancellationRating
7.2
3,256 reviews
Search WestJet flights
Air CanadaPriceFrom $277Free CancellationRating
7.1
10,701 reviews
Search Air Canada flights
United AirlinesPriceFrom $309Free CancellationRating
7.4
9,267 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
Calabogie
Brockville
Petawawa
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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