What airlines fly to Ottawa?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Ottawa from Denver according to our data. Air Canada is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 7h 20m.

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

Newark (EWR) has the shortest average layover time for this route: 2h 07m.

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

Newark (EWR) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Newark (EWR) offer the lowest average round-trip price of $309.

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?

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

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.

$123 Cheap Flights from Denver to Ottawa in 2026

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Find the cheapest flights from Denver to Ottawa

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:41 am - 11:58 pm

DEN

YOW

12h 17m2 stops

9:40 am - 8:00 pm

YOW

DEN

12h 20m1 stop

$301Multiple Airlines

vie., feb. 6 - lun., feb. 9

7:30 am - 12:25 am

DEN

YOW

14h 55m2 stops

9:40 am - 6:59 pm

YOW

DEN

11h 19m1 stop

$303Multiple Airlines

mié., ene. 28 - sáb., ene. 31

7:30 am - 12:25 am

DEN

YOW

14h 55m2 stops

10:35 am - 8:46 pm

YOW

DEN

12h 11m1 stop

$322Multiple Airlines

mar., feb. 3 - mar., feb. 10

10:29 pm - 9:30 pm

DEN

YOW

21h 01m1 stop

9:40 am - 8:00 pm

YOW

DEN

12h 20m1 stop

$328Multiple Airlines

vie., feb. 6 - lun., feb. 9

1:20 pm - 5:15 pm

DEN

YOW

25h 55m1 stop

9:40 am - 6:59 pm

YOW

DEN

11h 19m1 stop

$350Multiple Airlines

mié., ene. 28 - sáb., ene. 31

5:11 pm - 8:00 pm

DEN

YOW

24h 49m2 stops

9:40 am - 6:59 pm

YOW

DEN

11h 19m1 stop

$359Multiple Airlines

mié., ene. 21 - sáb., ene. 24

7:00 am - 11:58 pm

DEN

YOW

14h 58m1 stop

5:40 am - 1:23 am

YOW

DEN

21h 43m2 stops

$365Multiple Airlines

lun., mar. 30 - mié., abr. 8

6:00 am - 12:39 am

DEN

YOW

40h 39m2 stops

4:20 pm - 8:20 am

YOW

DEN

18h 00m1 stop

$371Multiple Airlines

dom., mar. 15 - mar., mar. 24

4:12 pm - 5:15 pm

DEN

YOW

23h 03m2 stops

9:30 am - 5:36 pm

YOW

DEN

10h 06m1 stop

$375Multiple Airlines

vie., ene. 23 - lun., ene. 26

8:54 am - 9:30 pm

DEN

YOW

10h 36m1 stop

7:00 am - 9:35 pm

YOW

DEN

16h 35m2 stops

$378Multiple Airlines

mar., feb. 10 - mié., feb. 18

Delta flights from Denver to Ottawa

Our best Delta deals on Denver to Ottawa flight tickets

Delta

Feb 3

DEN10:34 amDenver Intl

12h 05m

2 stops

YOW12:39 amOttawa

Feb 10

YOW5:40 amOttawa

13h 48m

2 stops

DEN5:28 pmDenver Intl

$473

Delta

May 16

DEN6:45 amDenver Intl

15h 37m

2 stops

YOW12:22 amOttawa

May 23

YOW5:55 amOttawa

16h 03m

2 stops

DEN7:58 pmDenver Intl

$477

Delta

Jan 28

DEN10:34 amDenver Intl

12h 08m

2 stops

YOW12:42 amOttawa

Jan 31

YOW5:40 amOttawa

15h 48m

2 stops

DEN7:28 pmDenver Intl

$498

American Airlines flights from Denver to Ottawa

Our best American Airlines deals on Denver to Ottawa flight tickets

American Airlines

Feb 3

DEN3:14 pmDenver Intl

25h 14m

3 stops

YOW6:28 pmOttawa

Feb 10

YOW10:00 amOttawa

12h 53m

2 stops

DEN8:53 pmDenver Intl

$809

American Airlines

Jan 17

DEN5:29 pmDenver Intl

22h 59m

3 stops

YOW6:28 pmOttawa

Jan 24

YOW10:00 amOttawa

28h 02m

2 stops

DEN12:02 pmDenver Intl

$1,326

American Airlines

Jan 14

DEN7:20 amDenver Intl

15h 23m

2 stops

YOW12:43 amOttawa

Jan 15

YOW6:45 amOttawa

16h 31m

3 stops

DEN9:16 pmDenver Intl

$1,374

Fly from

Fly to

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

vie. 2/6

9:41 am-11:58 pm

2 stops12h 17m

Ottawa

lun. 2/9

9:40 am-8:00 pm

1 stop12h 20m

$301

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mié. 1/28

7:30 am-12:25 am

2 stops14h 55m

Ottawa

sáb. 1/31

9:40 am-6:59 pm

1 stop11h 19m

$303

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mar. 2/3

7:30 am-12:25 am

2 stops14h 55m

Ottawa

mar. 2/10

10:35 am-8:46 pm

1 stop12h 11m

$322

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

vie. 2/6

10:29 pm-9:30 pm

1 stop21h 01m

Ottawa

lun. 2/9

9:40 am-8:00 pm

1 stop12h 20m

$328

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mié. 1/28

1:20 pm-5:15 pm

1 stop25h 55m

Ottawa

sáb. 1/31

9:40 am-6:59 pm

1 stop11h 19m

$350

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mié. 1/21

5:11 pm-8:00 pm

2 stops24h 49m

Ottawa

sáb. 1/24

9:40 am-6:59 pm

1 stop11h 19m

$359

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

lun. 3/30

7:00 am-11:58 pm

1 stop14h 58m

Ottawa

mié. 4/8

5:40 am-1:23 am

2 stops21h 43m

$365

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

dom. 3/15

6:00 am-12:39 am

2 stops40h 39m

Ottawa

mar. 3/24

4:20 pm-8:20 am

1 stop18h 00m

$371

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

vie. 1/23

4:12 pm-5:15 pm

2 stops23h 03m

Ottawa

lun. 1/26

9:30 am-5:36 pm

1 stop10h 06m

$375

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mar. 2/10

8:54 am-9:30 pm

1 stop10h 36m

Ottawa

mié. 2/18

7:00 am-9:35 pm

2 stops16h 35m

$378

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

Layovers

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	9h 42m
Direct flights	None

The fastest flight from Denver to Ottawa takes 9h 42m

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 9h 42m.
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?
The number of operators available for flights from Denver Intl Airport to Ottawa Airport is 3 as of January 2026.
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?
Based on momondo bookings for flights between Denver and Ottawa, the leading airline is United Airlines, making up 46% of the total bookings. Other popular airlines include Air Canada with 45% and WestJet with 10%.

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
WestJet	PriceFrom $143	Free Cancellation	Rating 7.2 3,235 reviews	Search WestJet flights
Air Canada	PriceFrom $290	Free Cancellation	Rating 7.1 10,603 reviews	Search Air Canada flights
United Airlines	PriceFrom $348	Free Cancellation	Rating 7.4 9,139 reviews	Search United Airlines flights

Gatineau

Pembroke

Calabogie

Brockville

Petawawa

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.