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Cheap flights from Denver to Ottawa from $198

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 9/12. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
Multiple Airlines Logo
7:20 am - 11:48 pm
YOW
-
DEN
18h 28m
2 stops
$407Multiple Airlines
Fri, Oct 2 - Mon, Oct 5
Multiple Airlines Logo
11:59 pm - 5:23 pm
DEN
-
YOW
15h 24m
2 stops
Multiple Airlines Logo
4:15 pm - 7:52 am
YOW
-
DEN
17h 37m
1 stop
$414Multiple Airlines
Tue, Sep 8 - Mon, Sep 14
Multiple Airlines Logo
11:59 pm - 5:23 pm
DEN
-
YOW
15h 24m
2 stops
Multiple Airlines Logo
7:00 am - 7:33 am
YOW
-
DEN
26h 33m
1 stop
$434Multiple Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
12:15 pm - 5:35 am
DEN
-
YOW
15h 20m
1 stop
Multiple Airlines Logo
1:20 pm - 9:29 pm
YOW
-
DEN
34h 09m
2 stops
$444Multiple Airlines
Sun, Oct 11 - Fri, Oct 16
United Airlines Logo
11:52 pm - 2:17 pm
DEN
-
YOW
12h 25m
1 stop
United Airlines Logo
5:20 pm - 9:44 pm
YOW
-
DEN
6h 24m
1 stop
$756United Airlines
Mon, Sep 28 - Tue, Sep 29
Air Canada Logo
11:25 am - 7:45 pm
DEN
-
YOW
6h 20m
1 stop
Air Canada Logo
6:55 am - 4:58 pm
YOW
-
DEN
12h 03m
1 stop
$777Air Canada
Fri, Oct 2 - Mon, Oct 5
United Airlines Logo
12:40 pm - 10:35 pm
DEN
-
YOW
7h 55m
1 stop
United Airlines Logo
10:37 am - 3:17 pm
YOW
-
DEN
6h 40m
1 stop
$788United Airlines
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
1:58 pm - 11:54 pm
DEN
-
YOW
7h 56m
1 stop
United Airlines Logo
6:25 am - 10:32 am
YOW
-
DEN
6h 07m
1 stop
$788United Airlines
Fri, Sep 4 - Mon, Sep 7
Air Canada Logo
11:20 am - 7:52 pm
DEN
-
YOW
6h 32m
1 stop
Air Canada Logo
7:45 am - 6:13 pm
YOW
-
DEN
12h 28m
1 stop
$882Air Canada
Fri, Jan 29 - Mon, Feb 1
Air Canada Logo
11:20 am - 7:52 pm
DEN
-
YOW
6h 32m
1 stop
Air Canada Logo
7:45 am - 6:13 pm
YOW
-
DEN
12h 28m
1 stop
$893Air Canada
Fri, Jan 29 - Mon, Feb 1

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United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Sep 28
DEN11:52 pmDenver Intl
12h 25m
1 stop
YOW2:17 pmOttawa
Sep 29
YOW5:20 pmOttawa
6h 24m
1 stop
DEN9:44 pmDenver Intl
$756
United Airlines
Sep 4
DEN12:40 pmDenver Intl
7h 55m
1 stop
YOW10:35 pmOttawa
Sep 8
YOW10:37 amOttawa
6h 40m
1 stop
DEN3:17 pmDenver Intl
$788

Air Canada flights from Denver to Ottawa

Our best Air Canada deals on Denver to Ottawa flight tickets
Air Canada
Oct 2
DEN11:25 amDenver Intl
6h 20m
1 stop
YOW7:45 pmOttawa
Oct 5
YOW6:55 amOttawa
12h 03m
1 stop
DEN4:58 pmDenver Intl
$777
Air Canada
Aug 14
DEN6:00 amDenver Intl
5h 59m
1 stop
YOW1:59 pmOttawa
Aug 16
YOW6:00 amOttawa
6h 33m
1 stop
DEN10:33 amDenver Intl
$1,059

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 August 2, 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

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 10/2

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Mon 10/5

7:20 am-11:48 pm

2 stops18h 28m

$407

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 9/8

11:59 pm-5:23 pm

2 stops15h 24m

Ottawa

Mon 9/14

4:15 pm-7:52 am

1 stop17h 37m

$414

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 8/29

11:59 pm-5:23 pm

2 stops15h 24m

Ottawa

Sat 9/5

7:00 am-7:33 am

1 stop26h 33m

$434

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 10/11

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

Fri 10/16

1:20 pm-9:29 pm

2 stops34h 09m

$444

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 9/28

11:52 pm-2:17 pm

1 stop12h 25m

Ottawa

Tue 9/29

5:20 pm-9:44 pm

1 stop6h 24m

$756

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 10/2

11:25 am-7:45 pm

1 stop6h 20m

Ottawa

Mon 10/5

6:55 am-4:58 pm

1 stop12h 03m

$777

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 9/4

12:40 pm-10:35 pm

1 stop7h 55m

Ottawa

Tue 9/8

10:37 am-3:17 pm

1 stop6h 40m

$788
Quickest round-trip

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 9/4

1:58 pm-11:54 pm

1 stop7h 56m

Ottawa

Mon 9/7

6:25 am-10:32 am

1 stop6h 07m

$788

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/29

11:20 am-7:52 pm

1 stop6h 32m

Ottawa

Mon 2/1

7:45 am-6:13 pm

1 stop12h 28m

$882

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 1/29

11:20 am-7:52 pm

1 stop6h 32m

Ottawa

Mon 2/1

7:45 am-6:13 pm

1 stop12h 28m

$893

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?

Prices are currently low for flights on this route.

Typical prices usually range from $768 to $816.
The lowest price recently found on this route was $407.

What is the cheapest month to fly to Ottawa?

In general, November is the cheapest month to fly from Denver to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of October is another great option to travel to Ottawa, with average flight prices from Denver averaging around $397.

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

6h 12m

Direct flights

None
The fastest flight from Denver to Ottawa takes 6h 12m
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 6h 12m.

  • 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 $363Free CancellationRating
7.1
11,418 reviews
Search Air Canada flights
United AirlinesPriceFrom $376Free CancellationRating
7.4
10,062 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
Brockville
Pembroke
Petawawa
Perth
Calabogie
Smiths Falls
Prescott
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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