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Cheap flights from Denver to Ottawa from $174

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 5/15. 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 - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
19h 05m
2 stops
$403WestJet
Tue, May 26 - Fri, May 29
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
6:15 pm - 11:20 am
YOW
-
DEN
43h 05m
2 stops
$422WestJet
Tue, May 26 - Thu, May 28
WestJet Logo
12:15 pm - 5:15 pm
DEN
-
YOW
27h 00m
1 stop
WestJet Logo
4:15 pm - 11:20 am
YOW
-
DEN
21h 05m
1 stop
$426WestJet
Tue, May 26 - Fri, May 29
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
$430WestJet
Wed, Jun 3 - Mon, Jun 8
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
$431WestJet
Fri, Jun 19 - Tue, Jun 23
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
$432WestJet
Fri, Jun 19 - Sun, Jun 21
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
7:20 am - 11:20 am
YOW
-
DEN
30h 00m
1 stop
$436WestJet
Wed, Jun 3 - Mon, Jun 8
WestJet Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
WestJet Logo
1:20 pm - 11:20 am
YOW
-
DEN
24h 00m
1 stop
$437WestJet
Fri, Jun 19 - Sun, Jun 21
WestJet Logo
12:15 pm - 12:30 pm
DEN
-
YOW
46h 15m
2 stops
WestJet Logo
7:20 am - 11:20 am
YOW
-
DEN
30h 00m
1 stop
$460WestJet
Thu, Jun 4 - Sun, Jun 7
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
$462WestJet
Thu, Jun 4 - Sun, Jun 7

WestJet flights from Denver to Ottawa

Our best WestJet deals on Denver to Ottawa flight tickets
WestJet
May 26
DEN12:15 pmDenver Intl
15h 20m
1 stop
YOW5:35 amOttawa
May 29
YOW6:15 pmOttawa
19h 05m
2 stops
DEN11:20 amDenver Intl
$403
WestJet
May 26
DEN12:15 pmDenver Intl
15h 20m
1 stop
YOW5:35 amOttawa
May 28
YOW6:15 pmOttawa
43h 05m
2 stops
DEN11:20 amDenver Intl
$422
WestJet
May 26
DEN12:15 pmDenver Intl
27h 00m
1 stop
YOW5:15 pmOttawa
May 29
YOW4:15 pmOttawa
21h 05m
1 stop
DEN11:20 amDenver Intl
$426

American Airlines flights from Denver to Ottawa

Our best American Airlines deals on Denver to Ottawa flight tickets
American Airlines
May 4
DEN12:24 pmDenver Intl
24h 31m
2 stops
YOW2:55 pmOttawa
May 9
YOW7:00 amOttawa
14h 55m
3 stops
DEN7:55 pmDenver Intl
$1,095
American Airlines
May 4
DEN5:14 pmDenver Intl
19h 41m
3 stops
YOW2:55 pmOttawa
May 9
YOW7:00 amOttawa
14h 55m
3 stops
DEN7:55 pmDenver Intl
$1,151
American Airlines
May 4
DEN5:44 pmDenver Intl
19h 11m
2 stops
YOW2:55 pmOttawa
May 9
YOW7:00 amOttawa
14h 55m
3 stops
DEN7:55 pmDenver Intl
$1,202

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 April 24, 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
Quickest round-trip

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 5/26

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Fri 5/29

6:15 pm-11:20 am

2 stops19h 05m

$403

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 5/26

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Thu 5/28

6:15 pm-11:20 am

2 stops43h 05m

$422

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 5/26

12:15 pm-5:15 pm

1 stop27h 00m

Ottawa

Fri 5/29

4:15 pm-11:20 am

1 stop21h 05m

$426

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 6/3

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Mon 6/8

7:20 am-11:20 am

1 stop30h 00m

$430

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 6/19

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Tue 6/23

4:15 pm-11:20 am

1 stop21h 05m

$431

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 6/19

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Sun 6/21

6:15 pm-11:20 am

2 stops19h 05m

$432

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 6/3

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Mon 6/8

7:20 am-11:20 am

1 stop30h 00m

$436

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 6/19

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Sun 6/21

1:20 pm-11:20 am

1 stop24h 00m

$437

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 6/4

12:15 pm-12:30 pm

2 stops46h 15m

Ottawa

Sun 6/7

7:20 am-11:20 am

1 stop30h 00m

$460

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 6/4

12:15 pm-12:30 pm

2 stops22h 15m

Ottawa

Sun 6/7

6:15 pm-11:20 am

2 stops19h 05m

$462

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?

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 07m

Direct flights

None
The fastest flight from Denver to Ottawa takes 9h 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 9h 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?

  • 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 $290Free CancellationRating
7.1
10,961 reviews
Search Air Canada flights
United AirlinesPriceFrom $367Free CancellationRating
7.4
9,643 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
Petawawa
Smiths Falls
Brockville
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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