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Cheap flights from Denver to Ottawa from $261

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 6/11. 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
7:00 am - 5:15 pm
DEN
-
YOW
8h 15m1 stop
Multiple Airlines Logo
4:15 pm - 9:41 pm
YOW
-
DEN
31h 26m2 stops
$302Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
9:41 am - 5:15 pm
DEN
-
YOW
29h 34m1 stop
Multiple Airlines Logo
9:30 am - 5:36 pm
YOW
-
DEN
10h 06m1 stop
$317Multiple Airlines
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
6:32 pm - 5:13 pm
DEN
-
YOW
20h 41m1 stop
Multiple Airlines Logo
9:40 am - 8:00 pm
YOW
-
DEN
12h 20m1 stop
$321Multiple Airlines
Mon, Jan 26 - Thu, Jan 29
Multiple Airlines Logo
9:05 pm - 5:25 pm
DEN
-
YOW
18h 20m2 stops
Multiple Airlines Logo
9:40 am - 8:00 pm
YOW
-
DEN
12h 20m1 stop
$322Multiple Airlines
Mon, Jan 26 - Thu, Jan 29
Multiple Airlines Logo
1:28 pm - 11:58 pm
DEN
-
YOW
8h 30m1 stop
Multiple Airlines Logo
10:00 am - 6:59 pm
YOW
-
DEN
34h 59m2 stops
$323Multiple Airlines
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
9:41 am - 5:15 pm
DEN
-
YOW
29h 34m1 stop
Multiple Airlines Logo
4:15 pm - 12:19 pm
YOW
-
DEN
22h 04m2 stops
$342Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
12:05 am - 4:30 pm
DEN
-
YOW
14h 25m2 stops
Multiple Airlines Logo
4:20 pm - 9:35 am
YOW
-
DEN
19h 15m1 stop
$358Multiple Airlines
Fri, Jan 16 - Mon, Jan 19
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m1 stop
WestJet Logo
7:15 pm - 11:25 am
YOW
-
DEN
18h 10m1 stop
$381WestJet
Sun, Jun 7 - Fri, Jun 12
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m1 stop
WestJet Logo
6:00 am - 6:50 pm
YOW
-
DEN
14h 50m1 stop
$382WestJet
Mon, Jun 8 - Thu, Jun 11
Multiple Airlines Logo
11:22 am - 5:25 pm
DEN
-
YOW
28h 03m1 stop
Multiple Airlines Logo
3:55 pm - 1:37 am
YOW
-
DEN
11h 42m1 stop
$392Multiple Airlines
Sat, Jan 17 - Mon, Jan 19

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Jan 8
DEN5:37 pmDenver Intl
18h 50m
2 stops
YOW2:27 pmOttawa
Jan 15
YOW5:11 pmOttawa
18h 43m
2 stops
DEN9:54 amDenver Intl
$770
Find similar
United Airlines
Jan 8
DEN5:37 pmDenver Intl
18h 50m
2 stops
YOW2:27 pmOttawa
Jan 15
YOW6:00 amOttawa
8h 08m
1 stop
DEN12:08 pmDenver Intl
$849
Find similar
United Airlines
Jan 8
DEN10:05 amDenver Intl
9h 13m
2 stops
YOW9:18 pmOttawa
Jan 15
YOW6:20 amOttawa
14h 01m
2 stops
DEN6:21 pmDenver Intl
$856
Find similar

American Airlines flights from Denver to Ottawa

Our best American Airlines deals on Denver to Ottawa flight tickets
American Airlines
Jan 8
DEN12:52 pmDenver Intl
26h 01m
2 stops
YOW4:53 pmOttawa
Jan 15
YOW6:45 amOttawa
17h 49m
3 stops
DEN10:34 pmDenver Intl
$1,207
Find similar
American Airlines
Jan 8
DEN5:29 pmDenver Intl
21h 24m
3 stops
YOW4:53 pmOttawa
Jan 15
YOW6:45 amOttawa
17h 49m
3 stops
DEN10:34 pmDenver Intl
$1,263
Find similar
American Airlines
Jan 8
DEN6:00 amDenver Intl
16h 43m
3 stops
YOW12:43 amOttawa
Jan 15
YOW6:45 amOttawa
17h 49m
3 stops
DEN10:34 pmDenver Intl
$1,343
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 28, 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

Mon 2/9

7:00 am-5:15 pm

1 stop8h 15m

Ottawa

Mon 2/16

4:15 pm-9:41 pm

2 stops31h 26m

$302

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/23

9:41 am-5:15 pm

1 stop29h 34m

Ottawa

Mon 1/26

9:30 am-5:36 pm

1 stop10h 06m

$317

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 1/26

6:32 pm-5:13 pm

1 stop20h 41m

Ottawa

Thu 1/29

9:40 am-8:00 pm

1 stop12h 20m

$321

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 1/26

9:05 pm-5:25 pm

2 stops18h 20m

Ottawa

Thu 1/29

9:40 am-8:00 pm

1 stop12h 20m

$322

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/23

1:28 pm-11:58 pm

1 stop8h 30m

Ottawa

Mon 1/26

10:00 am-6:59 pm

2 stops34h 59m

$323

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 1/25

9:41 am-5:15 pm

1 stop29h 34m

Ottawa

Sun 2/1

4:15 pm-12:19 pm

2 stops22h 04m

$342

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/16

12:05 am-4:30 pm

2 stops14h 25m

Ottawa

Mon 1/19

4:20 pm-9:35 am

1 stop19h 15m

$358

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 6/7

12:15 pm-12:40 am

1 stop10h 25m

Ottawa

Fri 6/12

7:15 pm-11:25 am

1 stop18h 10m

$381

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 6/8

12:15 pm-12:40 am

1 stop10h 25m

Ottawa

Thu 6/11

6:00 am-6:50 pm

1 stop14h 50m

$382

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 1/17

11:22 am-5:25 pm

1 stop28h 03m

Ottawa

Mon 1/19

3:55 pm-1:37 am

1 stop11h 42m

$392

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 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

7h 21m

Direct flights

None
The fastest flight from Denver to Ottawa takes 7h 21m
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 7h 21m.

  • 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
3,222 reviews
Search WestJet flights
Air CanadaPriceFrom $290Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,113 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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