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Cheap flights from Ottawa to Colorado from C$ 266

YOW — DEN
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Colorado

Sat 17/104:15 p.m. -
1 stop21h 05m
Thu 22/1010:44 p.m. -
2 stops28h 51m
Deal found 9/9C$ 469
Wed 7/108:15 p.m. -
1 stop17h 05m
Wed 14/1010:44 p.m. -
2 stops28h 51m
Deal found 9/9C$ 473
Thu 1/108:15 p.m. -
1 stop17h 05m
Sun 4/1012:15 p.m. -
1 stop15h 20m
Deal found 6/9C$ 478
Sat 17/104:15 p.m. -
1 stop21h 05m
Sat 24/101:07 p.m. -
2 stops14h 28m
Deal found 9/9C$ 487
Sat 17/104:15 p.m. -
1 stop21h 05m
Mon 26/1010:44 p.m. -
2 stops24h 16m
Deal found 9/9C$ 494
Fri 2/101:20 p.m. -
2 stops30h 55m
Mon 5/1012:15 p.m. -
1 stop15h 20m
Deal found 8/9C$ 513
Fri 2/101:20 p.m. -
2 stops22h 12m
Sun 4/1012:15 p.m. -
1 stop15h 20m
Deal found 8/9C$ 521
Sat 17/104:15 p.m. -
1 stop21h 05m
Fri 23/101:07 p.m. -
2 stops14h 28m
Deal found 9/9C$ 527
Sat 17/104:15 p.m. -
1 stop21h 05m
Tue 27/106:31 p.m. -
2 stops20h 49m
Deal found 9/9C$ 534
Sat 17/104:15 p.m. -
1 stop21h 05m
Wed 21/101:10 p.m. -
2 stops28h 10m
Deal found 9/9C$ 535
Fri 2/106:15 p.m. -
2 stops43h 05m
Mon 5/1012:15 p.m. -
1 stop27h 00m
Deal found 8/9C$ 546
Sun 27/96:25 a.m. -
1 stop6h 30m
Fri 2/106:00 a.m. -
2 stops14h 35m
Deal found 8/9C$ 805

Find flight deals from Ottawa to Colorado

Round-trip from

C$ 478

One-way from

C$ 266

Popular in

January

Cheapest in

October

Average price

C$ 460
WestJet
  • WestJet
  • 1/10-4/10
  • 2 total stops
  • 32h 25m total
  • Ottawa to Colorado
Search Deals
22/10-31/12
  • 22/10-31/12
  • 2 total stops
  • 32h 57m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ottawa to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 22/9

6:55 a.m.-5:21 p.m.

2 stops12h 26m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 320

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 15/9

6:55 a.m.-4:15 p.m.

2 stops11h 20m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 330

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 22/9

6:25 p.m.-11:20 a.m.

2 stops42h 55m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 345

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 6/10

6:55 a.m.-8:11 p.m.

2 stops15h 16m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 363
Quickest round-trip

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 22/9

6:00 a.m.-10:31 a.m.

1 stop6h 31m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 400

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 6/10

6:00 a.m.-10:31 a.m.

1 stop6h 31m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 434

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 22/9

1:20 p.m.-8:15 a.m.

3 stops20h 55m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 462

OttawaColorado Springs

YOW Ottawa - COS Colorado Springs

YOWCOS

Ottawa

Fri 23/10

6:05 a.m.-10:06 p.m.

2 stops18h 01m

Colorado Springs

Wed 31/12

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

Nonstop0h 00m

C$ 473

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Fri 2/10

6:55 a.m.-5:21 p.m.

2 stops12h 26m

Denver Intl

Tue 6/10

10:41 a.m.-12:20 a.m.

2 stops11h 39m

C$ 597

OttawaDenver

YOW Ottawa - DEN Denver Intl

YOWDEN

Ottawa

Tue 20/10

6:50 a.m.-5:32 p.m.

2 stops12h 42m

Denver Intl

Fri 23/10

6:00 a.m.-12:20 a.m.

2 stops16h 20m

C$ 619

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Best time to book a flight from Ottawa to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Ottawa with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 447). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 1,249). 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.

How much does it cost to fly round-trip from Ottawa to Colorado?

Airfare is typical for this route at the moment.
Ottawa to Colorado flights typically cost between C$ 378 and C$ 688 in October.
The cheapest round-trip price found within the last 5 days was C$ 469 on Multiple Airlines (17 Oct-22 Oct).

Reviews of airlines servicing Colorado

Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,194 reviews
Check prices

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,194 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
Air Canada
7.1
Good
11,608 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

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

    For a flight from Ottawa to Colorado, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city.

  • How long is the flight from Ottawa to Colorado?

    A quick flight from Ottawa to Colorado can take about 6h 30m. Delta provides one of the quickest options available for as low as C$ 805. The distance from Ottawa to Colorado is about 2486 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Colorado 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 Ottawa to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 447). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 1,249). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ottawa to Colorado

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Top 2 airlines flying from Ottawa to Colorado

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 375AverageC$ 689FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 395AverageC$ 823FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ottawa to Colorado.

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

Need flexible booking options for your flight to Colorado from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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