$199+ Cheap flights from Ottawa (YOW) to Colorado
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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Ottawa to Colorado with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ottawa to Colorado
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Cheapest flights from Ottawa to ColoradoExplore the most affordable flight options available from Ottawa to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Ottawa to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Wed 5/2012:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/28![WestJet logo]()
$336
This oojo deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Sun 5/1712:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/23![WestJet logo]()
$337
This oojo deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/184:15 pm
YOW
- DEN
1 stop21h 05m
WestJet
Wed 6/2412:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/25![WestJet logo]()
$364
This oojo deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:15 pm
YOW
- DEN
1 stop21h 05m
WestJet
Sun 9/2712:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/26![WestJet logo]()
$385
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:48 pm
YOW
- COS
2 stops11h 01m
United Airlines
Wed 9/26:32 pm
COS
- YOW
2 stops17h 27m
United Airlines
Deal found 4/28![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:10 pm
YOW
- COS
2 stops10h 49m
United Airlines
Sat 6/66:00 am
COS
- YOW
2 stops13h 35m
United Airlines
Deal found 4/27![United Airlines logo]()
$494
Best flights from Ottawa to ColoradoDiscover carefully curated flight deals from Ottawa to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Ottawa to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Wed 5/2012:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/28![WestJet logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:25 am
YOW
- COS
1 stop6h 34m
United Airlines
Wed 9/26:32 pm
COS
- YOW
2 stops12h 39m
United Airlines
Deal found 4/28![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:55 am
YOW
- DEN
2 stops9h 04m
Delta
Sat 6/66:05 am
DEN
- YOW
2 stops9h 30m
Delta
Deal found 4/23![Delta logo]()
$439
This oojo deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Sun 5/1712:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/23![WestJet logo]()
$337
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/184:15 pm
YOW
- DEN
1 stop21h 05m
WestJet
Wed 6/2412:15 pm
DEN
- YOW
1 stop27h 00m
WestJet
Deal found 4/27![WestJet logo]()
$380
This oojo deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:55 am
YOW
- DEN
2 stops30h 25m
WestJet
Wed 7/1512:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/25![WestJet logo]()
$393
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:10 pm
YOW
- COS
2 stops10h 49m
United Airlines
Sat 6/66:00 am
COS
- YOW
2 stops13h 35m
United Airlines
Deal found 4/27![United Airlines logo]()
$494
Last-minute flights from Ottawa to ColoradoDiscover last-minute flight deals from Ottawa to Colorado. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ottawa to Colorado. Data last updated April 29, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Sun 5/1712:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/23![WestJet logo]()
$337
This FlightHub deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:15 pm
YOW
- DEN
2 stops43h 05m
WestJet
Fri 5/1512:15 pm
DEN
- YOW
1 stop15h 20m
WestJet
Deal found 4/24![WestJet logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:20 pm
YOW
- DEN
2 stops47h 53m
Multiple Airlines
Wed 5/2012:15 pm
DEN
- YOW
1 stop15h 20m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:20 pm
YOW
- DEN
1 stop18h 04m
Multiple Airlines
Fri 5/1512:15 pm
DEN
- YOW
1 stop15h 20m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$516
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Wed 5/2012:15 pm
DEN
- YOW
2 stops22h 15m
WestJet
Deal found 4/28![WestJet logo]()
$336
This Trip.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/214:15 pm
YOW
- DEN
1 stop21h 05m
Multiple Airlines
Mon 5/256:30 am
DEN
- YOW
2 stops15h 55m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$420
One-way flights from Ottawa to ColoradoSearch for one-way flight options from Ottawa to Colorado. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Ottawa to Colorado. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:20 pm
YOW
- DEN
1 stop24h 00m
WestJet
Deal found 4/28![WestJet logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/184:20 pm
YOW
- DEN
2 stops32h 04m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$205
This oojo deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:15 pm
YOW
- DEN
2 stops19h 05m
WestJet
Deal found 4/26![WestJet logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:20 am
YOW
- DEN
3 stops18h 49m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$229
This oojo deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:15 pm
YOW
- DEN
2 stops19h 05m
WestJet
Deal found 4/26![WestJet logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:15 pm
YOW
- DEN
2 stops43h 05m
WestJet
Deal found 4/24![WestJet logo]()
$233
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:55 am
YOW
- DEN
2 stops9h 04m
Delta
Deal found 4/24![Delta logo]()
$236
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1112:25 pm
YOW
- DEN
2 stops13h 06m
Delta
Deal found 4/27![Delta logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:15 pm
YOW
- DEN
3 stops29h 27m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$256
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/115:20 pm
YOW
- COS
2 stops17h 21m
United Airlines
Deal found 4/27![United Airlines logo]()
$296
Find flight deals from Ottawa to Colorado
Keep the following information in mind while searching for Ottawa to Colorado flight deals. Data was last updated April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $336 (oojo) |
One-way from | $199 (oojo) |
Popular in | January |
Cheapest in | February |
Average price | $562 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ottawa to Colorado 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 2,558,603 searches. Data last updated April 29, 2026.
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
Cheapest round-trip
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Mon 5/18
1:20 pm-11:20 am
1 stop24h 00m
Denver Intl
Wed 5/20
12:15 pm-12:30 pm
2 stops22h 15m
$336
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Thu 5/7
1:20 pm-11:20 am
1 stop24h 00m
Denver Intl
Sun 5/17
12:15 pm-12:30 pm
2 stops22h 15m
$337
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Thu 6/18
4:15 pm-11:20 am
1 stop21h 05m
Denver Intl
Wed 6/24
12:15 pm-5:15 pm
1 stop27h 00m
$380
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Wed 7/8
6:55 am-11:20 am
2 stops30h 25m
Denver Intl
Wed 7/15
12:15 pm-12:30 pm
2 stops22h 15m
$393
OttawaColorado Springs
YOW - COS
YOWCOS
Ottawa
Tue 9/1
6:25 am-10:59 am
1 stop6h 34m
Colorado Springs
Wed 9/2
6:32 pm-9:11 am
2 stops12h 39m
$429
Quickest round-trip
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Wed 6/3
6:55 am-1:59 pm
2 stops9h 04m
Denver Intl
Sat 6/6
6:05 am-5:35 pm
2 stops9h 30m
$439
OttawaColorado Springs
YOW - COS
YOWCOS
Ottawa
Wed 6/3
3:10 pm-11:59 pm
2 stops10h 49m
Colorado Springs
Sat 6/6
6:00 am-9:35 pm
2 stops13h 35m
$494
Cheapest one-way
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Mon 5/18
1:20 pm-11:20 am
1 stop24h 00m
$199
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Thu 6/11
6:15 pm-11:20 am
2 stops19h 05m
$217
OttawaDenver
YOW - DEN
YOWDEN
Ottawa
Fri 6/12
6:25 pm-11:20 am
2 stops18h 55m
$229
Showing 1-10 of 20 resultsSorted by cheapest first
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.
YOW-DEN
YOW-COS
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 Ottawa to Colorado
YOW-USCO
YOW-DEN
YOW-COS
How far ahead should I book a flight from Ottawa to Colorado?
To ensure you get the cheapest price possible for a flight from Ottawa to Colorado, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Ottawa to Colorado?
Currently, November is the cheapest month in which you can book a flight from Ottawa to Colorado (average of $189). Flying from Ottawa to Colorado in January is currently the most expensive (average of $601). 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?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated April 29, 2026.
Peruse reviews from past customers who have flown with United Airlines and Air Canada from Ottawa to Colorado to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Comfort
7.3
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Comfort
7.3
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Related info for your journey
Find useful and relevant information for your journey from Ottawa to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ottawa to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ottawa to Colorado by cabin class
Find flights from Ottawa to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ottawa and Colorado flights
Browse other Ottawa and Colorado flight options. Last updated on April 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ottawa to Colorado flights
Consider these flights traveling from Ottawa to Colorado.
Top 2 airlines flying from Ottawa to Colorado
Discover the top 2 airlines that operate flights from Ottawa to Colorado. 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 2,558,603 searches. Data last updated April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$251 | Average$620 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$312 | Average$625 | FlexibilityNo cancel fee | On-time67% |