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Cheap flights from Denver to Ottawa from $170

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 3/31. 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
10:50 pm - 9:30 pm
DEN
-
YOW
20h 40m
1 stop
Multiple Airlines Logo
3:05 pm - 3:59 am
YOW
-
DEN
14h 54m
2 stops
$395Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
11:59 pm - 5:13 pm
DEN
-
YOW
39h 14m
2 stops
Multiple Airlines Logo
10:35 am - 9:44 pm
YOW
-
DEN
13h 09m
1 stop
$407Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
12:51 pm - 5:40 am
DEN
-
YOW
14h 49m
2 stops
Multiple Airlines Logo
9:30 am - 10:59 pm
YOW
-
DEN
15h 29m
1 stop
$425Multiple Airlines
Mon, Apr 27 - Thu, Apr 30
Multiple Airlines Logo
9:25 am - 11:58 pm
DEN
-
YOW
12h 33m
1 stop
Multiple Airlines Logo
4:20 pm - 12:09 pm
YOW
-
DEN
45h 49m
2 stops
$427Multiple Airlines
Sun, Apr 5 - Sun, Apr 12
Multiple Airlines Logo
6:00 am - 12:02 am
DEN
-
YOW
16h 02m
2 stops
Multiple Airlines Logo
9:35 am - 8:18 am
YOW
-
DEN
24h 43m
1 stop
$430Multiple Airlines
Tue, Mar 17 - Mon, Mar 23
Multiple Airlines Logo
8:00 am - 11:58 pm
DEN
-
YOW
13h 58m
2 stops
Multiple Airlines Logo
9:30 am - 10:59 pm
YOW
-
DEN
15h 29m
1 stop
$439Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
10:38 am - 9:30 pm
DEN
-
YOW
8h 52m
1 stop
Multiple Airlines Logo
10:35 am - 9:44 pm
YOW
-
DEN
13h 09m
1 stop
$440Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
11:59 pm - 5:13 pm
DEN
-
YOW
15h 14m
1 stop
Multiple Airlines Logo
4:15 pm - 8:09 am
YOW
-
DEN
17h 54m
2 stops
$443Multiple Airlines
Wed, Apr 8 - Sat, Apr 11
Multiple Airlines Logo
10:50 pm - 9:30 pm
DEN
-
YOW
20h 40m
1 stop
Multiple Airlines Logo
10:35 am - 5:59 pm
YOW
-
DEN
9h 24m
1 stop
$459Multiple Airlines
Mon, Apr 6 - Thu, Apr 9
Multiple Airlines Logo
11:59 pm - 5:13 pm
DEN
-
YOW
15h 14m
1 stop
Multiple Airlines Logo
4:15 pm - 8:09 am
YOW
-
DEN
17h 54m
2 stops
$479Multiple Airlines
Mon, Apr 6 - Thu, Apr 9

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Apr 8
DEN8:40 pmDenver Intl
18h 27m
2 stops
YOW5:07 pmOttawa
Apr 11
YOW6:25 amOttawa
14h 00m
2 stops
DEN6:25 pmDenver Intl
$679
United Airlines
Apr 24
DEN5:41 pmDenver Intl
14h 19m
2 stops
YOW10:00 amOttawa
Apr 26
YOW7:30 pmOttawa
16h 28m
2 stops
DEN9:58 amDenver Intl
$702
United Airlines
Mar 9
DEN8:50 pmDenver Intl
18h 22m
2 stops
YOW5:12 pmOttawa
Mar 12
YOW12:00 pmOttawa
8h 16m
2 stops
DEN6:16 pmDenver Intl
$851

Air Canada flights from Denver to Ottawa

Our best Air Canada deals on Denver to Ottawa flight tickets
Air Canada
Mar 9
DEN1:25 pmDenver Intl
5h 53m
1 stop
YOW9:18 pmOttawa
Mar 16
YOW2:50 pmOttawa
7h 05m
1 stop
DEN7:55 pmDenver Intl
$572
Air Canada
Apr 24
DEN7:05 pmDenver Intl
9h 40m
1 stop
YOW6:45 amOttawa
Apr 26
YOW7:45 amOttawa
12h 05m
1 stop
DEN5:50 pmDenver Intl
$726
Air Canada
Jun 25
DEN9:40 amDenver Intl
8h 05m
1 stop
YOW7:45 pmOttawa
Jun 29
YOW6:55 amOttawa
12h 18m
1 stop
DEN5:13 pmDenver Intl
$729

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 23, 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

Mon 4/6

10:50 pm-9:30 pm

1 stop20h 40m

Ottawa

Mon 4/13

3:05 pm-3:59 am

2 stops14h 54m

$395

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 4/7

11:59 pm-5:13 pm

2 stops39h 14m

Ottawa

Tue 4/14

10:35 am-9:44 pm

1 stop13h 09m

$407

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 4/27

12:51 pm-5:40 am

2 stops14h 49m

Ottawa

Thu 4/30

9:30 am-10:59 pm

1 stop15h 29m

$425

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 4/5

9:25 am-11:58 pm

1 stop12h 33m

Ottawa

Sun 4/12

4:20 pm-12:09 pm

2 stops45h 49m

$427

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 3/17

6:00 am-12:02 am

2 stops16h 02m

Ottawa

Mon 3/23

9:35 am-8:18 am

1 stop24h 43m

$430

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 4/26

8:00 am-11:58 pm

2 stops13h 58m

Ottawa

Thu 4/30

9:30 am-10:59 pm

1 stop15h 29m

$439

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 4/7

10:38 am-9:30 pm

1 stop8h 52m

Ottawa

Tue 4/14

10:35 am-9:44 pm

1 stop13h 09m

$440

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 4/8

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Sat 4/11

4:15 pm-8:09 am

2 stops17h 54m

$443

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 4/6

10:50 pm-9:30 pm

1 stop20h 40m

Ottawa

Thu 4/9

10:35 am-5:59 pm

1 stop9h 24m

$459

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 4/6

11:59 pm-5:13 pm

1 stop15h 14m

Ottawa

Thu 4/9

4:15 pm-8:09 am

2 stops17h 54m

$479

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

7h 22m

Direct flights

None
The fastest flight from Denver to Ottawa takes 7h 22m
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 22m.

  • 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
3,273 reviews
Search WestJet flights
Air CanadaPriceFrom $290Free CancellationRating
7.1
10,739 reviews
Search Air Canada flights
United AirlinesPriceFrom $309Free CancellationRating
7.4
9,342 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
Petawawa
Brockville
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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