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Cheap flights from Colorado to Ottawa from C$ 145

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YOW
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

C$ 395

One-way from

C$ 145

Popular in

January

Cheapest in

October

Average price

C$ 618
United Airlines
  • United Airlines
  • 30/9-16/10
  • 2 total stops
  • 24h 19m total
  • Colorado to Ottawa
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WestJet
  • WestJet
  • 6/10
  • 1 total stop
  • 10h 25m total
  • Colorado to Ottawa
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 15 September 2025.

Tue 30/98:28 p.m.DEN - YOW
1 stop15h 36mUnited Airlines
Thu 16/105:15 a.m.YOW - DEN
1 stop8h 43mUnited Airlines
Deal found 15/9C$ 395
Sun 19/1011:59 p.m.DEN - YOW
1 stop7h 59mUnited Airlines
Fri 24/105:25 p.m.YOW - DEN
1 stop6h 35mUnited Airlines
Deal found 15/9C$ 401
Wed 15/1010:29 p.m.DEN - YOW
2 stops23h 53mMultiple Airlines
Wed 22/104:25 p.m.YOW - DEN
1 stop17h 50mMultiple Airlines
Deal found 14/9C$ 410
Sat 18/1012:36 a.m.DEN - YOW
1 stop14h 21mMultiple Airlines
Fri 24/105:55 a.m.YOW - DEN
2 stops24h 04mMultiple Airlines
Deal found 15/9C$ 414
Wed 15/1011:59 p.m.DEN - YOW
2 stops11h 10mUnited Airlines
Wed 22/1011:55 a.m.YOW - DEN
2 stops10h 24mUnited Airlines
Deal found 14/9C$ 432
Thu 13/117:21 p.m.DEN - YOW
1 stop13h 05mUnited Airlines
Sun 16/1112:05 p.m.YOW - DEN
1 stop6h 35mUnited Airlines
Deal found 15/9C$ 437
Sun 12/1012:15 p.m.DEN - YOW
1 stop10h 25mMultiple Airlines
Sun 19/103:50 p.m.YOW - DEN
2 stops42h 22mMultiple Airlines
Deal found 14/9C$ 533

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 15 September 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

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$ 395

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 15/10

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

1 stop7h 12m

Ottawa

Wed 22/10

5:15 a.m.-10:04 a.m.

1 stop6h 49m

C$ 395

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 19/10

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

1 stop7h 59m

Ottawa

Fri 24/10

5:25 p.m.-10:00 p.m.

1 stop6h 35m

C$ 401

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$ 410

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sat 18/10

12:36 a.m.-4:57 p.m.

1 stop14h 21m

Ottawa

Fri 24/10

5:55 a.m.-3:59 a.m.

2 stops24h 04m

C$ 414

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 13/11

11:59 p.m.-3:23 p.m.

2 stops13h 24m

Ottawa

Sun 16/11

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

1 stop6h 35m

C$ 453

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 12/10

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

1 stop10h 25m

Ottawa

Sun 19/10

3:50 p.m.-8:12 a.m.

2 stops42h 22m

C$ 533

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 6/10

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

1 stop10h 25m

C$ 145

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 15/10

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

2 stops23h 53m

C$ 171

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 6/10

11:59 p.m.-5:04 p.m.

2 stops15h 05m

C$ 180

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 13 results
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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.

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.

  • How long is the flight from Colorado to Ottawa?

    There are many flights that can get you from Colorado to Ottawa in 15h 36m. Fly via United Airlines to get the fastest option. There are 2435 km between Colorado and 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

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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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 216AverageC$ 952FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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.

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