Find flights
When to book
Airlines
FAQs

Cheap flights from Colorado to Ottawa from C$ 296

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YOW
5 Aug — 12 Aug1
1 adult

Cheap flight deals from Colorado to Ottawa

Keep the following information in mind while searching for Colorado to Ottawa flight deals. Data was last updated 31 July 2025.

Round-trip from

C$ 506

One-way from

C$ 296

Popular in

January

Cheapest in

October

Average price

C$ 667
WestJet
  • WestJet
  • 25/8-28/8
  • 2 total stops
  • 28h 38m total
  • Colorado to Ottawa
Search Deals
United Airlines
  • United Airlines
  • 10/9
  • 1 total stop
  • 7h 59m total
  • Colorado to Ottawa
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Colorado to Ottawa

Cheapest flights from Colorado to Ottawa
Explore the most affordable flight options available from Colorado to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Mon 25/812:15 p.m.DEN - YOW
1 stop10h 26mWestJet
Thu 28/87:15 p.m.YOW - DEN
1 stop18h 12mWestJet
Deal found 30/7C$ 506
Thu 18/97:05 p.m.DEN - YOW
1 stop11h 18mAir Canada
Fri 26/99:35 a.m.YOW - DEN
1 stop11h 48mAir Canada
Deal found 29/7C$ 518
Thu 25/912:15 p.m.DEN - YOW
1 stop10h 25mMultiple Airlines
Mon 29/97:00 a.m.YOW - DEN
2 stops29h 14mMultiple Airlines
Deal found 31/7C$ 527
Wed 10/910:12 a.m.DEN - YOW
1 stop6h 40mUnited Airlines
Mon 15/97:29 p.m.YOW - DEN
1 stop6h 30mUnited Airlines
Deal found 30/7C$ 666
Sun 14/96:00 a.m.COS - YOW
1 stop9h 06mMultiple Airlines
Sun 21/910:37 a.m.YOW - COS
1 stop26h 19mMultiple Airlines
Deal found 31/7C$ 1,121
Sun 14/96:25 p.m.COS - YOW
2 stops13h 33mUnited Airlines
Sun 21/95:25 p.m.YOW - COS
1 stop19h 31mUnited Airlines
Deal found 31/7C$ 1,167

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Colorado to Ottawa that are best for you.

Fly from

Colorado

Fly to

Ottawa

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 25/8

12:15 p.m.-12:41 a.m.

1 stop10h 26m

Ottawa

Thu 28/8

7:15 p.m.-11:27 a.m.

1 stop18h 12m

C$ 506

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 18/9

7:05 p.m.-8:23 a.m.

1 stop11h 18m

Ottawa

Fri 26/9

9:35 a.m.-7:23 p.m.

1 stop11h 48m

C$ 518

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 25/9

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

1 stop10h 25m

Ottawa

Mon 29/9

7:00 a.m.-10:14 a.m.

2 stops29h 14m

C$ 527

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/9

10:12 a.m.-6:52 p.m.

1 stop6h 40m

Ottawa

Mon 15/9

7:29 p.m.-11:59 p.m.

1 stop6h 30m

C$ 666

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 14/9

6:00 a.m.-5:06 p.m.

1 stop9h 06m

Ottawa

Sun 21/9

10:37 a.m.-10:56 a.m.

1 stop26h 19m

C$ 1,121

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 14/9

6:25 p.m.-9:58 a.m.

2 stops13h 33m

Ottawa

Sun 21/9

5:25 p.m.-10:56 a.m.

1 stop19h 31m

C$ 1,167

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/9

11:59 p.m.-9:58 a.m.

1 stop7h 59m

C$ 296

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/9

8:00 a.m.-1:03 p.m.

3 stops27h 03m

C$ 311

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Best time to book a flight from Colorado to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Ottawa

What is the cheapest month to book a flight from Colorado to Ottawa?

Currently, October is the cheapest month in which you can book a flight from Colorado to Ottawa (average of C$ 224). Flying from Colorado to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 31 July 2025.
Check out reviews from past customers who have flown with United Airlines,WestJet, andAir Canada from Colorado to Ottawa to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews
Check prices

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews
Check prices

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
WestJet
7.2
Good
2,978 reviews
United Airlines
7.4
Good
8,900 reviews
Check prices

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Air Canada
7.1
Good
9,851 reviews
United Airlines
7.4
Good
8,900 reviews
Check prices

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ottawa from Colorado?

    Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly into when you book flights from Colorado to Ottawa.

  • Can I find deals for flights from Colorado to Ottawa that include hotel bookings?

    Yes. In addition to deals on Colorado to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Ottawa.

  • Can I find deals for business class flights from Colorado to Ottawa?

    Yes. Cheapflights offers flight deals from Colorado to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Colorado to Ottawa (average of C$ 224). Flying from Colorado to Ottawa in December is currently the most expensive (average of C$ 326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Toronto Island flights
Newark to Pearson Intl flights
John F Kennedy Intl to Pearson Intl flights
Newark to Pierre Elliott Trudeau Intl flights
LaGuardia to Pearson Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Boston to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Boston to Toronto Island flights
San Francisco to Pearson Intl flights
Reagan-National to Pearson Intl flights
Dallas/Fort Worth to Pearson Intl flights
Hobby to Pearson Intl flights
Dulles Intl to Toronto Island flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pearson Intl flights
Seattle to Pearson Intl flights
Atlanta to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
George Bush Intcntl to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Midway to Toronto Island flights
Boston to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Philadelphia to Pearson Intl flights
Minneapolis to Pearson Intl flights
Orlando to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Toronto Island flights
Raleigh to Pearson Intl flights
San Diego to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Charlotte to Pearson Intl flights
Midway to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Orlando to Pierre Elliott Trudeau Intl flights
LaGuardia to Toronto Island flights
Miami to Pearson Intl flights
Denver to Pearson Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Sky Harbor Intl to Pearson Intl flights
Nashville to Pearson Intl flights
San Jose to Pearson Intl flights

Top airline flying from Colorado to Ottawa

Discover the top airline that operate flights from Colorado to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 171AverageC$ 954FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Colorado to Ottawa?

Cheapflights helps you search for flights from Colorado to Ottawa via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Colorado to Ottawa?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ottawa from Colorado.

Can Cheapflights find flights from Colorado to Ottawa with no change fees?

Yes, we can. To see specific flights from Colorado to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Colorado to Ottawa become cheaper?

Yes, Cheapflights offers price alerts on Colorado to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.