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Cheap flights from Denver to Ottawa from $171

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 4/1. 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
3:32 pm - 11:58 pm
DEN
-
YOW
30h 26m
1 stop
Multiple Airlines Logo
4:20 pm - 12:14 pm
YOW
-
DEN
21h 54m
2 stops
$461Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
6:00 am - 11:58 pm
DEN
-
YOW
15h 58m
2 stops
Multiple Airlines Logo
4:20 pm - 8:21 am
YOW
-
DEN
18h 01m
1 stop
$480Multiple Airlines
Fri, Apr 10 - Sun, Apr 12
Multiple Airlines Logo
9:06 pm - 11:58 pm
DEN
-
YOW
24h 52m
2 stops
Multiple Airlines Logo
10:35 am - 9:44 pm
YOW
-
DEN
13h 09m
1 stop
$499Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
9:55 am - 11:58 pm
DEN
-
YOW
12h 03m
1 stop
Multiple Airlines Logo
4:20 pm - 8:21 am
YOW
-
DEN
18h 01m
1 stop
$512Multiple Airlines
Fri, Apr 10 - Sun, Apr 12
Multiple Airlines Logo
3:32 pm - 11:58 pm
DEN
-
YOW
30h 26m
1 stop
Multiple Airlines Logo
4:20 pm - 2:31 pm
YOW
-
DEN
24h 11m
1 stop
$557Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
7:05 pm - 12:25 pm
DEN
-
YOW
15h 20m
2 stops
Multiple Airlines Logo
7:00 am - 8:24 am
YOW
-
DEN
27h 24m
1 stop
$566Multiple Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
11:59 pm - 11:58 pm
DEN
-
YOW
21h 59m
1 stop
Multiple Airlines Logo
10:35 am - 9:44 pm
YOW
-
DEN
13h 09m
1 stop
$567Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
7:15 am - 5:35 am
DEN
-
YOW
20h 20m
2 stops
Multiple Airlines Logo
7:00 am - 8:24 am
YOW
-
DEN
27h 24m
1 stop
$604Multiple Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
9:25 pm - 5:40 pm
DEN
-
YOW
18h 15m
2 stops
Multiple Airlines Logo
4:15 pm - 8:20 am
YOW
-
DEN
18h 05m
1 stop
$612Multiple Airlines
Mon, Jul 27 - Mon, Aug 10
Multiple Airlines Logo
10:38 am - 9:30 pm
DEN
-
YOW
8h 52m
1 stop
Multiple Airlines Logo
6:45 am - 3:45 pm
YOW
-
DEN
11h 00m
2 stops
$613Multiple Airlines
Thu, Apr 16 - Wed, Apr 22

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets
United Airlines
Apr 17
DEN5:50 pmDenver Intl
21h 17m
2 stops
YOW5:07 pmOttawa
Apr 24
YOW5:25 pmOttawa
15h 35m
2 stops
DEN7:00 amDenver Intl
$701
United Airlines
May 2
DEN1:30 pmDenver Intl
22h 29m
2 stops
YOW1:59 pmOttawa
May 9
YOW6:25 amOttawa
13h 54m
2 stops
DEN6:19 pmDenver Intl
$784
United Airlines
Jun 19
DEN11:59 pmDenver Intl
8h 04m
1 stop
YOW10:03 amOttawa
Jun 23
YOW5:20 pmOttawa
8h 17m
1 stop
DEN11:37 pmDenver Intl
$787

Air Canada flights from Denver to Ottawa

Our best Air Canada deals on Denver to Ottawa flight tickets
Air Canada
Apr 16
DEN7:05 pmDenver Intl
9h 40m
1 stop
YOW6:45 amOttawa
Apr 22
YOW7:45 amOttawa
12h 05m
1 stop
DEN5:50 pmDenver Intl
$693
Air Canada
May 3
DEN6:10 pmDenver Intl
13h 05m
1 stop
YOW9:15 amOttawa
May 10
YOW5:05 amOttawa
7h 28m
1 stop
DEN10:33 amDenver Intl
$694
Air Canada
Jul 22
DEN11:25 amDenver Intl
7h 25m
1 stop
YOW8:50 pmOttawa
Jul 30
YOW6:55 amOttawa
12h 18m
1 stop
DEN5:13 pmDenver Intl
$776

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 March 21, 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 4/17

3:32 pm-11:58 pm

1 stop30h 26m

Ottawa

Fri 4/24

4:20 pm-12:14 pm

2 stops21h 54m

$461

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 4/10

6:00 am-11:58 pm

2 stops15h 58m

Ottawa

Sun 4/12

4:20 pm-8:21 am

1 stop18h 01m

$480

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 4/16

9:06 pm-11:58 pm

2 stops24h 52m

Ottawa

Thu 4/23

10:35 am-9:44 pm

1 stop13h 09m

$499

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 4/10

9:55 am-11:58 pm

1 stop12h 03m

Ottawa

Sun 4/12

4:20 pm-8:21 am

1 stop18h 01m

$512

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 4/17

3:32 pm-11:58 pm

1 stop30h 26m

Ottawa

Fri 4/24

4:20 pm-2:31 pm

1 stop24h 11m

$557

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 5/2

7:05 pm-12:25 pm

2 stops15h 20m

Ottawa

Sat 5/9

7:00 am-8:24 am

1 stop27h 24m

$566

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 4/16

11:59 pm-11:58 pm

1 stop21h 59m

Ottawa

Thu 4/23

10:35 am-9:44 pm

1 stop13h 09m

$567

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 5/2

7:15 am-5:35 am

2 stops20h 20m

Ottawa

Sat 5/9

7:00 am-8:24 am

1 stop27h 24m

$604

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 7/27

9:25 pm-5:40 pm

2 stops18h 15m

Ottawa

Mon 8/10

4:15 pm-8:20 am

1 stop18h 05m

$612
Quickest round-trip

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 4/16

10:38 am-9:30 pm

1 stop8h 52m

Ottawa

Wed 4/22

6:45 am-3:45 pm

2 stops11h 00m

$613

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

6h 50m

Direct flights

None
The fastest flight from Denver to Ottawa takes 6h 50m
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 6h 50m.

  • 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 $186Free CancellationRating
7.1
10,821 reviews
Search Air Canada flights
United AirlinesPriceFrom $367Free CancellationRating
7.4
9,451 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
Smiths Falls
Brockville
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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