What is the cheapest airline that flies from Denver Intl to Ottawa?

WestJet, United Airlines, and Air Canada are the most popular carriers operating from Denver Intl to Ottawa

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 are refreshed on a daily basis.

How many operators does momondo search for flights from Denver Intl Airport to Ottawa Airport?

The number of operators available for flights from Denver Intl Airport to Ottawa Airport is 1 as of September 2025.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 145 Cheap Flights from Denver to Ottawa in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Denver to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

8:28 p.m. - 2:04 p.m.DEN-YOW

15h 36m1 stop

5:15 a.m. - 11:58 a.m.YOW-DEN

8h 43m1 stop

C$ 396United Airlines

Find Deal

Tue, 30 Sep - Thu, 16 Oct

10:29 p.m. - 12:22 a.m.DEN-YOW

23h 53m2 stops

4:25 p.m. - 8:15 a.m.YOW-DEN

17h 50m1 stop

C$ 411

Find Deal

Wed, 15 Oct - Wed, 22 Oct

11:59 p.m. - 1:09 p.m.DEN-YOW

11h 10m2 stops

5:15 a.m. - 11:58 a.m.YOW-DEN

8h 43m1 stop

C$ 412United Airlines

Find Deal

Tue, 30 Sep - Thu, 16 Oct

11:59 p.m. - 1:09 p.m.DEN-YOW

11h 10m2 stops

11:55 a.m. - 8:19 p.m.YOW-DEN

10h 24m2 stops

C$ 433United Airlines

Find Deal

Wed, 15 Oct - Wed, 22 Oct

7:21 p.m. - 10:26 a.m.DEN-YOW

13h 05m1 stop

12:05 p.m. - 4:40 p.m.YOW-DEN

6h 35m1 stop

C$ 437United Airlines

Find Deal

Thu, 13 Nov - Sun, 16 Nov

5:30 p.m. - 1:38 a.m.DEN-YOW

6h 08m1 stop

7:45 a.m. - 5:44 p.m.YOW-DEN

11h 59m1 stop

C$ 580Air Canada

Find Deal

Fri, 21 Nov - Tue, 25 Nov

2:00 p.m. - 12:22 a.m.DEN-YOW

8h 22m2 stops

5:55 a.m. - 5:28 p.m.YOW-DEN

13h 33m2 stops

C$ 981Delta

Find Deal

Fri, 3 Oct - Tue, 7 Oct

12:15 p.m. - 12:40 a.m.DEN-YOW

10h 25m1 stop

6:00 a.m. - 6:56 p.m.YOW-DEN

14h 56m2 stops

C$ 1,091WestJet

Find Deal

Fri, 3 Oct - Tue, 7 Oct

6:25 a.m. - 12:40 a.m.DEN-YOW

40h 15m2 stops

6:00 a.m. - 7:14 p.m.YOW-DEN

15h 14m2 stops

C$ 1,272WestJet

Find Deal

Tue, 23 Dec - Tue, 6 Jan

10:34 a.m. - 12:42 a.m.DEN-YOW

12h 08m2 stops

5:40 a.m. - 8:33 p.m.YOW-DEN

16h 53m2 stops

C$ 1,366Delta

Find Deal

Thu, 27 Nov - Sun, 30 Nov

United Airlines flights from Denver to Ottawa

Our best United Airlines deals on Denver to Ottawa flight tickets

United Airlines

30 Sep

DEN8:28 p.m.Denver Intl

15h 36m

1 stop

YOW2:04 p.m.Ottawa

16 Oct

YOW5:15 a.m.Ottawa

8h 43m

1 stop

DEN11:58 a.m.Denver Intl

C$ 396

Find similar

United Airlines

30 Sep

DEN11:59 p.m.Denver Intl

11h 10m

2 stops

YOW1:09 p.m.Ottawa

16 Oct

YOW5:15 a.m.Ottawa

8h 43m

1 stop

DEN11:58 a.m.Denver Intl

C$ 412

Find similar

United Airlines

15 Oct

DEN11:59 p.m.Denver Intl

11h 10m

2 stops

YOW1:09 p.m.Ottawa

22 Oct

YOW11:55 a.m.Ottawa

10h 24m

2 stops

DEN8:19 p.m.Denver Intl

C$ 433

Find similar

Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets

Delta

3 Oct

DEN2:00 p.m.Denver Intl

8h 22m

2 stops

YOW12:22 a.m.Ottawa

7 Oct

YOW5:55 a.m.Ottawa

13h 33m

2 stops

DEN5:28 p.m.Denver Intl

C$ 981

Find similar

Delta

27 Nov

DEN10:34 a.m.Denver Intl

12h 08m

2 stops

YOW12:42 a.m.Ottawa

30 Nov

YOW5:40 a.m.Ottawa

16h 53m

2 stops

DEN8:33 p.m.Denver Intl

C$ 1,366

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 30/9

8:28 p.m.-2:04 p.m.

1 stop15h 36m

Ottawa

Thu 16/10

5:15 a.m.-11:58 a.m.

1 stop8h 43m

C$ 396

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 15/10

10:29 p.m.-12:22 a.m.

2 stops23h 53m

Ottawa

Wed 22/10

4:25 p.m.-8:15 a.m.

1 stop17h 50m

C$ 411

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 30/9

11:59 p.m.-1:09 p.m.

2 stops11h 10m

Ottawa

Thu 16/10

5:15 a.m.-11:58 a.m.

1 stop8h 43m

C$ 412

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 15/10

11:59 p.m.-1:09 p.m.

2 stops11h 10m

Ottawa

Wed 22/10

11:55 a.m.-8:19 p.m.

2 stops10h 24m

C$ 433

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 13/11

7:21 p.m.-10:26 a.m.

1 stop13h 05m

Ottawa

Sun 16/11

12:05 p.m.-4:40 p.m.

1 stop6h 35m

C$ 437

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 21/11

5:30 p.m.-1:38 a.m.

1 stop6h 08m

Ottawa

Tue 25/11

7:45 a.m.-5:44 p.m.

1 stop11h 59m

C$ 580

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 3/10

2:00 p.m.-12:22 a.m.

2 stops8h 22m

Ottawa

Tue 7/10

5:55 a.m.-5:28 p.m.

2 stops13h 33m

C$ 981

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Fri 3/10

12:15 p.m.-12:40 a.m.

1 stop10h 25m

Ottawa

Tue 7/10

6:00 a.m.-6:56 p.m.

2 stops14h 56m

C$ 1,091

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 23/12

6:25 a.m.-12:40 a.m.

2 stops40h 15m

Ottawa

Tue 6/1

6:00 a.m.-7:14 p.m.

2 stops15h 14m

C$ 1,272

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 27/11

10:34 a.m.-12:42 a.m.

2 stops12h 08m

Ottawa

Sun 30/11

5:40 a.m.-8:33 p.m.

2 stops16h 53m

C$ 1,366

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to Ottawa?

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from Denver to Ottawa during this time can be as low as C$ 817. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,125 per ticket.

Can stopping save me money on Denver to Ottawa flights?

You could potentially save up to 1% on your flight if you consider stops on a Denver to Ottawa flight.

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

Direct flights	None

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?
The straight-line distance from Denver Intl to Ottawa is 2463.0 km. By plane, this route typically takes 5h 53m.
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 are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Ottawa Airport?
The number of operators available for flights from Denver Intl Airport to Ottawa Airport is 1 as of September 2025.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Denver to Ottawa?
momondo data reveals that the most frequently booked airline on the route from Denver to Ottawa is Air Canada, representing 100% of all bookings.

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 Canada	PriceFrom C$ 216	Free Cancellation	Rating 7.1 10,000 reviews		Search Air Canada flights

Gatineau

Pembroke

Brockville

Smiths Falls

Perth

Wakefield

Calabogie

Prescott

Petawawa

Winchester

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Ottawa?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Ottawa. momondo saves you time and could save you money on your trip.

Can I find flights from Denver to Ottawa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ottawa from Denver with this policy.

How can momondo help me find flights from Denver to Ottawa?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Ottawa.

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.