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Cheap flights from Denver to Ottawa from $328

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 1/28. 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
7:30 am - 12:25 am
DEN
-
YOW
14h 55m2 stops
Multiple Airlines Logo
9:40 am - 6:59 pm
YOW
-
DEN
11h 19m1 stop
$328Multiple Airlines
Wed, Jan 28 - Sat, Jan 31
Multiple Airlines Logo
6:32 pm - 5:13 pm
DEN
-
YOW
20h 41m1 stop
Multiple Airlines Logo
9:30 am - 5:36 pm
YOW
-
DEN
10h 06m1 stop
$361Multiple Airlines
Tue, Jan 20 - Fri, Jan 23
Multiple Airlines Logo
6:32 pm - 5:13 pm
DEN
-
YOW
20h 41m1 stop
Multiple Airlines Logo
9:40 am - 6:59 pm
YOW
-
DEN
11h 19m1 stop
$365Multiple Airlines
Wed, Jan 28 - Sat, Jan 31
Multiple Airlines Logo
8:50 am - 12:25 am
DEN
-
YOW
13h 35m2 stops
Multiple Airlines Logo
10:35 am - 9:30 pm
YOW
-
DEN
12h 55m1 stop
$381Multiple Airlines
Thu, Feb 5 - Thu, Feb 12
Multiple Airlines Logo
6:32 pm - 5:13 pm
DEN
-
YOW
20h 41m1 stop
Multiple Airlines Logo
9:30 am - 9:45 pm
YOW
-
DEN
14h 15m2 stops
$383Multiple Airlines
Tue, Jan 20 - Fri, Jan 23
Multiple Airlines Logo
6:25 am - 12:25 am
DEN
-
YOW
16h 00m2 stops
Multiple Airlines Logo
9:40 am - 8:00 pm
YOW
-
DEN
12h 20m1 stop
$391Multiple Airlines
Thu, Jan 15 - Sat, Jan 17
Multiple Airlines Logo
7:30 am - 12:25 am
DEN
-
YOW
14h 55m2 stops
Multiple Airlines Logo
4:20 pm - 10:00 am
YOW
-
DEN
19h 40m1 stop
$392Multiple Airlines
Wed, Jan 28 - Fri, Jan 30
Multiple Airlines Logo
10:46 am - 6:35 pm
DEN
-
YOW
29h 49m1 stop
Multiple Airlines Logo
10:35 am - 9:30 pm
YOW
-
DEN
12h 55m1 stop
$447Multiple Airlines
Thu, Feb 5 - Thu, Feb 12
Multiple Airlines Logo
9:12 pm - 12:25 am
DEN
-
YOW
25h 13m2 stops
Multiple Airlines Logo
9:30 am - 5:31 pm
YOW
-
DEN
10h 01m1 stop
$452Multiple Airlines
Fri, Jan 16 - Sun, Jan 18
Multiple Airlines Logo
11:59 pm - 11:58 pm
DEN
-
YOW
21h 59m1 stop
Multiple Airlines Logo
9:40 am - 8:00 pm
YOW
-
DEN
12h 20m1 stop
$484Multiple Airlines
Thu, Jan 15 - Sat, Jan 17

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Jan 28
DEN10:08 amDenver Intl
11h 46m
2 stops
YOW11:54 pmOttawa
Jan 30
YOW6:20 amOttawa
14h 01m
2 stops
DEN6:21 pmDenver Intl
$690
Find similar
United Airlines
Jan 28
DEN11:59 pmDenver Intl
12h 28m
1 stop
YOW2:27 pmOttawa
Jan 30
YOW9:45 amOttawa
11h 41m
1 stop
DEN7:26 pmDenver Intl
$694
Find similar
United Airlines
Feb 26
DEN6:00 amDenver Intl
13h 18m
2 stops
YOW9:18 pmOttawa
Mar 2
YOW2:15 pmOttawa
12h 15m
1 stop
DEN12:30 amDenver Intl
$770
Find similar

Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets
Delta
Jan 28
DEN7:10 amDenver Intl
15h 32m
2 stops
YOW12:42 amOttawa
Jan 31
YOW5:40 amOttawa
19h 06m
2 stops
DEN10:46 pmDenver Intl
$754
Find similar
Delta
Jan 16
DEN7:10 amDenver Intl
15h 32m
2 stops
YOW12:42 amOttawa
Jan 18
YOW5:40 amOttawa
17h 04m
2 stops
DEN8:44 pmDenver Intl
$771
Find similar
Delta
Jan 20
DEN7:10 amDenver Intl
15h 32m
2 stops
YOW12:42 amOttawa
Jan 23
YOW5:40 amOttawa
17h 04m
2 stops
DEN8:44 pmDenver Intl
$792
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 December 23, 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

Wed 1/28

7:30 am-12:25 am

2 stops14h 55m

Ottawa

Sat 1/31

9:40 am-6:59 pm

1 stop11h 19m

$328

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 1/20

6:32 pm-5:13 pm

1 stop20h 41m

Ottawa

Fri 1/23

9:30 am-5:36 pm

1 stop10h 06m

$361

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 1/28

6:32 pm-5:13 pm

1 stop20h 41m

Ottawa

Sat 1/31

9:40 am-6:59 pm

1 stop11h 19m

$365

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 2/5

8:50 am-12:25 am

2 stops13h 35m

Ottawa

Thu 2/12

10:35 am-9:30 pm

1 stop12h 55m

$381

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 1/20

6:32 pm-5:13 pm

1 stop20h 41m

Ottawa

Fri 1/23

9:30 am-9:45 pm

2 stops14h 15m

$383

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 1/15

6:25 am-12:25 am

2 stops16h 00m

Ottawa

Sat 1/17

9:40 am-8:00 pm

1 stop12h 20m

$391

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 1/28

7:30 am-12:25 am

2 stops14h 55m

Ottawa

Fri 1/30

4:20 pm-10:00 am

1 stop19h 40m

$392

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 2/5

10:46 am-6:35 pm

1 stop29h 49m

Ottawa

Thu 2/12

10:35 am-9:30 pm

1 stop12h 55m

$447

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/16

9:12 pm-12:25 am

2 stops25h 13m

Ottawa

Sun 1/18

9:30 am-5:31 pm

1 stop10h 01m

$452

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 1/15

11:59 pm-11:58 pm

1 stop21h 59m

Ottawa

Sat 1/17

9:40 am-8:00 pm

1 stop12h 20m

$484

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 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

Fastest flight time

9h 13m

Direct flights

None
The fastest flight from Denver to Ottawa takes 9h 13m
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 13m.

  • 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
3,214 reviews
Search WestJet flights
Air CanadaPriceFrom $290Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,106 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
Calabogie
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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