Which airport is the most popular layover for flights between Ottawa and Denver?

Chicago (ORD) was the most common stop: 43% of momondo users choosing one-stop flights on this route connected there.

Which layover airport has the shortest travel time from Ottawa to Denver?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 6h 21m.

Which layover airport offers the lowest fares from Ottawa to Denver?

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 439.

Which layover airport has the shortest connection time from Ottawa to Denver?

Washington, D.C. (IAD) has the shortest average layover time for this route: 0h 54m.

Which airlines fly to Denver?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Denver from Ottawa according to our data. Air Canada is the first choice among our users, with 61% of people opting to fly with this airline when travelling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

United Airlines is the most popular carrier operating from Ottawa to Denver Intl

When did momondo last update prices for flights from Ottawa Airport to Denver Intl Airport?

Prices for flights from Ottawa Airport to Denver Intl Airport are refreshed on a daily basis.

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

The number of operators available for flights from Ottawa Airport to Denver Intl Airport is 3 as of January 2026.

How old do you have to be to fly from Ottawa Airport to Denver Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 213 Cheap Flights from Ottawa to Denver in 2026

1 adult

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Find the cheapest flights from Ottawa to Denver

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:20 p.m. - 8:20 a.m.

YOW

DEN

18h 00m

1 stop

6:21 p.m. - 12:39 a.m.

DEN

YOW

28h 18m

2 stops

C$ 565Multiple Airlines

Mon, 9 Feb - Mon, 2 Mar

9:30 a.m. - 10:51 p.m.

YOW

DEN

15h 21m

2 stops

9:25 a.m. - 11:58 p.m.

DEN

YOW

12h 33m

1 stop

C$ 619Multiple Airlines

Thu, 16 Apr - Sun, 19 Apr

10:35 a.m. - 8:46 p.m.

YOW

DEN

12h 11m

1 stop

6:21 p.m. - 12:39 a.m.

DEN

YOW

28h 18m

2 stops

C$ 622Multiple Airlines

Tue, 10 Feb - Mon, 2 Mar

9:30 a.m. - 10:59 p.m.

YOW

DEN

15h 29m

1 stop

9:25 a.m. - 11:58 p.m.

DEN

YOW

12h 33m

1 stop

C$ 624Multiple Airlines

Thu, 16 Apr - Sun, 19 Apr

9:30 a.m. - 11:09 p.m.

YOW

DEN

15h 39m

1 stop

11:59 p.m. - 5:13 p.m.

DEN

YOW

15h 14m

1 stop

C$ 646Multiple Airlines

Fri, 3 Apr - Mon, 6 Apr

9:30 a.m. - 11:09 p.m.

YOW

DEN

15h 39m

1 stop

6:00 a.m. - 5:13 p.m.

DEN

YOW

33h 13m

2 stops

C$ 657Multiple Airlines

Fri, 3 Apr - Mon, 6 Apr

4:20 p.m. - 8:20 a.m.

YOW

DEN

18h 00m

1 stop

6:00 a.m. - 5:05 p.m.

DEN

YOW

9h 05m

1 stop

C$ 680Multiple Airlines

Mon, 9 Feb - Mon, 2 Mar

10:35 a.m. - 8:46 p.m.

YOW

DEN

12h 11m

1 stop

6:00 a.m. - 5:05 p.m.

DEN

YOW

9h 05m

1 stop

C$ 737Multiple Airlines

Tue, 10 Feb - Mon, 2 Mar

4:15 p.m. - 12:19 p.m.

YOW

DEN

22h 04m

2 stops

6:00 a.m. - 5:05 p.m.

DEN

YOW

9h 05m

1 stop

C$ 747Multiple Airlines

Sun, 8 Feb - Mon, 2 Mar

7:45 a.m. - 5:50 p.m.

YOW

DEN

12h 05m

1 stop

7:05 p.m. - 6:45 a.m.

DEN

YOW

9h 40m

1 stop

C$ 772Air Canada

Wed, 15 Apr - Sun, 19 Apr

WestJet flights from Ottawa to Denver

Our best WestJet deals on Ottawa to Denver flight tickets

WestJet

3 Jun

YOW4:15 p.m.Ottawa

21h 05m

1 stop

DEN11:20 a.m.Denver Intl

30 Jun

DEN12:15 p.m.Denver Intl

10h 25m

1 stop

YOW12:40 a.m.Ottawa

C$ 657

WestJet

3 Jun

YOW1:20 p.m.Ottawa

24h 00m

1 stop

DEN11:20 a.m.Denver Intl

30 Jun

DEN12:15 p.m.Denver Intl

26h 03m

2 stops

YOW4:18 p.m.Ottawa

C$ 662

WestJet

3 Jun

YOW5:55 a.m.Ottawa

31h 25m

2 stops

DEN11:20 a.m.Denver Intl

30 Jun

DEN12:15 p.m.Denver Intl

26h 03m

2 stops

YOW4:18 p.m.Ottawa

C$ 665

United Airlines flights from Ottawa to Denver

Our best United Airlines deals on Ottawa to Denver flight tickets

United Airlines

15 Apr

YOW6:00 a.m.Ottawa

10h 51m

3 stops

DEN2:51 p.m.Denver Intl

19 Apr

DEN6:00 a.m.Denver Intl

5h 59m

1 stop

YOW1:59 p.m.Ottawa

C$ 782

United Airlines

15 Apr

YOW6:00 a.m.Ottawa

10h 51m

3 stops

DEN2:51 p.m.Denver Intl

19 Apr

DEN6:00 a.m.Denver Intl

6h 22m

1 stop

YOW2:22 p.m.Ottawa

C$ 787

United Airlines

19 Feb

YOW5:11 p.m.Ottawa

6h 54m

1 stop

DEN10:05 p.m.Denver Intl

23 Feb

DEN6:00 a.m.Denver Intl

9h 07m

1 stop

YOW5:07 p.m.Ottawa

C$ 865

Fly from

Fly to

Route

Depart

Return

Price

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 9/2

4:20 p.m.-8:20 a.m.

1 stop18h 00m

Denver Intl

Mon 2/3

6:21 p.m.-12:39 a.m.

2 stops28h 18m

C$ 565

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 16/4

9:30 a.m.-10:51 p.m.

2 stops15h 21m

Denver Intl

Sun 19/4

9:25 a.m.-11:58 p.m.

1 stop12h 33m

C$ 619

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 10/2

10:35 a.m.-8:46 p.m.

1 stop12h 11m

Denver Intl

Mon 2/3

6:21 p.m.-12:39 a.m.

2 stops28h 18m

C$ 622

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 16/4

9:30 a.m.-10:59 p.m.

1 stop15h 29m

Denver Intl

Sun 19/4

9:25 a.m.-11:58 p.m.

1 stop12h 33m

C$ 624

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 3/4

9:30 a.m.-11:09 p.m.

1 stop15h 39m

Denver Intl

Mon 6/4

11:59 p.m.-5:13 p.m.

1 stop15h 14m

C$ 646

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 3/4

9:30 a.m.-11:09 p.m.

1 stop15h 39m

Denver Intl

Mon 6/4

6:00 a.m.-5:13 p.m.

2 stops33h 13m

C$ 657

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 9/2

4:20 p.m.-8:20 a.m.

1 stop18h 00m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 680

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 10/2

10:35 a.m.-8:46 p.m.

1 stop12h 11m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 737

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 8/2

4:15 p.m.-12:19 p.m.

2 stops22h 04m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 747

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 15/4

7:45 a.m.-5:50 p.m.

1 stop12h 05m

Denver Intl

Sun 19/4

7:05 p.m.-6:45 a.m.

1 stop9h 40m

C$ 772

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to Denver

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

Layovers

What is the cheapest month to fly to Denver?

In general, September is the cheapest month to fly from Ottawa to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 441. If you aren’t able to travel during the month of September, then book flights to Denver from Ottawa during October instead. Flights to Denver in October, while not as cheap as those in September, still average around C$ 451.

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around C$ 703 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Ottawa for as low as C$ 380 on momondo.

How have Ottawa to Denver flight prices changed over time?

When to book flights from Ottawa to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ottawa to Denver (YOW to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Denver

Fastest flight time	6h 54m
Direct flights	None

The fastest flight from Ottawa to Denver takes 6h 54m

There are no direct flights from Ottawa to Denver. There are no popular flight routes from Ottawa to Denver.

Search flight deals

How far is Ottawa to Denver Intl by plane?
A flight from Ottawa to Denver Intl will travel around 2463.0 km. 6h 54m is a normal flight duration for this route.
When did momondo last update prices for flights from Ottawa Airport to Denver Intl Airport?
Prices for flights from Ottawa Airport to Denver Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ottawa Airport to Denver Intl Airport?
The number of operators available for flights from Ottawa Airport to Denver Intl Airport is 3 as of January 2026.
How old do you have to be to fly from Ottawa Airport to Denver Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ottawa to Denver?
Based on momondo bookings for flights between Ottawa and Denver, the leading airline is Air Canada, making up 51% of the total bookings. Other popular airlines include United Airlines with 38% and WestJet with 11%.

Best airlines flying from Ottawa to Denver

Compare and see reviews for airlines that fly from Ottawa to Denver with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom C$ 299	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 323	Free Cancellation	Rating 7.2 3,253 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 423	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights

Silverthorne

Wheat Ridge

Winter Park

Lakewood

Longmont

Boulder

Englewood

Why use momondo?

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

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 Denver from Ottawa.

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

Flights from Ottawa to Denver 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 Ottawa to Denver?

Once you have performed a search for Ottawa to Denver flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ottawa to Denver right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ottawa to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.