$171+ Cheap flights from Colorado to Ottawa (YOW)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YOW
Oct 12 — Oct 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to Ottawa with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Colorado to Ottawa
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado to OttawaExplore 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 September 12, 2026.
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 September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/212:15 pm -
1 stop15h 20m
Sun 10/114:15 pm -
1 stop21h 05m
Deal found 9/8![WestJet logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/1512:15 pm -
1 stop15h 20m
Sat 10/174:15 pm -
1 stop21h 05m
Deal found 9/9![WestJet logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/27:00 am -
2 stops20h 35m
Sun 10/114:15 pm -
1 stop21h 05m
Deal found 9/8![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Thu 10/112:15 pm -
1 stop22h 40m
Tue 10/61:20 pm -
2 stops22h 12m
Deal found 9/8![Multiple Airlines logo]()
$408
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:11 pm -
2 stops19h 33m
Fri 9/185:20 pm -
2 stops8h 35m
Deal found 9/9![Multiple Airlines logo]()
$924
Best flights from Colorado to OttawaDiscover carefully curated flight deals from Colorado to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Colorado to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 11/112:14 pm -
2 stops20h 56m
Sun 11/158:00 am -
1 stop26h 13m
Deal found 9/10![Multiple Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 9/7. 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 10/2210:41 am -
2 stops11h 39m
Thu 10/295:30 am -
2 stops14h 22m
Deal found 9/7![Delta logo]()
$594
This FlightHub deal was found by Cheapflights users on 9/10. 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 10/1212:15 pm -
2 stops27h 20m
Fri 10/166:50 am -
2 stops54h 30m
Deal found 9/10![WestJet logo]()
$637
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Mon 1/115:50 am -
1 stop6h 19m
Thu 1/144:36 pm -
1 stop7h 19m
Deal found 9/8![United Airlines logo]()
$755
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Thu 10/227:02 pm -
1 stop17h 28m
Thu 10/296:55 pm -
2 stops27h 20m
Deal found 9/7![Multiple Airlines logo]()
$667
This WestJet deal was found by Cheapflights users on 9/11. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:15 pm -
1 stop15h 20m
Sun 10/41:20 pm -
1 stop24h 00m
Deal found 9/11![WestJet logo]()
$739
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:15 pm -
1 stop25h 05m
Wed 10/146:55 am -
1 stop12h 03m
Deal found 9/11![Multiple Airlines logo]()
$686
This United Airlines deal was found by Cheapflights users on 9/9. 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 1/195:00 pm -
2 stops18h 26m
Sat 1/236:15 am -
1 stop11h 15m
Deal found 9/9![United Airlines logo]()
$764
This Delta deal was found by Cheapflights users on 9/8. 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.
Tue 10/66:20 am -
2 stops9h 15m
Tue 10/136:55 am -
2 stops17h 37m
Deal found 9/8![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 9/11. 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 10/86:20 am -
2 stops16h 00m
Tue 10/136:55 am -
2 stops17h 37m
Deal found 9/11![Delta logo]()
$779
This United deal was found by Cheapflights users on 9/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am -
1 stop13h 35m
Fri 10/162:00 pm -
1 stop8h 17m
Deal found 9/10![Multiple Airlines logo]()
$815
This Delta deal was found by Cheapflights users on 9/10. 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 10/2312:59 pm -
2 stops9h 21m
Sun 10/255:30 am -
2 stops16h 36m
Deal found 9/10![Delta logo]()
$842
Last-minute flights from Colorado to OttawaDiscover last-minute flight deals from Colorado to Ottawa. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Ottawa. Data last updated September 12, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:11 pm -
2 stops19h 33m
Fri 9/185:20 pm -
2 stops8h 35m
Deal found 9/9![Multiple Airlines logo]()
$924
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Thu 10/112:15 pm -
1 stop22h 40m
Tue 10/61:20 pm -
2 stops22h 12m
Deal found 9/8![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/212:15 pm -
1 stop15h 20m
Sun 10/114:15 pm -
1 stop21h 05m
Deal found 9/8![WestJet logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/27:00 am -
2 stops20h 35m
Sun 10/114:15 pm -
1 stop21h 05m
Deal found 9/8![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/1512:15 pm -
1 stop15h 20m
Sat 10/174:15 pm -
1 stop21h 05m
Deal found 9/9![WestJet logo]()
$366
One-way flights from Colorado to OttawaSearch for one-way flight options from Colorado to Ottawa. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Colorado to Ottawa. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/2512:15 pm -
2 stops22h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![WestJet logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/2512:15 pm -
1 stop27h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/266:00 am -
1 stop11h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 9/251:29 pm -
2 stops17h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 9/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:18 pm -
3 stops28h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![American Airlines logo]()
$628
Find flight deals from Colorado to Ottawa
Keep the following information in mind while searching for Colorado to Ottawa flight deals. Data was last updated September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $364 (Kiwi.com) |
One-way from | $171 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $878 |
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 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from Colorado to Ottawa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Fri 9/25
12:15 pm-12:30 pm
2 stops22h 15m
Ottawa
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$171
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Fri 9/25
12:15 pm-5:58 pm
1 stop27h 43m
Ottawa
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$248
Quickest round-trip
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Mon 10/26
6:00 am-7:27 pm
1 stop11h 27m
Ottawa
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$379
Colorado SpringsOttawa
COS Colorado Springs - YOW Ottawa
COSYOW
Colorado Springs
Fri 9/25
1:29 pm-9:11 am
2 stops17h 42m
Ottawa
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$462
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Wed 11/11
2:14 pm-1:10 pm
2 stops20h 56m
Ottawa
Sun 11/15
8:00 am-8:13 am
1 stop26h 13m
$530
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Thu 10/22
10:41 am-12:20 am
2 stops11h 39m
Ottawa
Thu 10/29
5:30 am-5:52 pm
2 stops14h 22m
$594
Colorado SpringsOttawa
COS Colorado Springs - YOW Ottawa
COSYOW
Colorado Springs
Fri 9/25
1:18 pm-8:00 pm
3 stops28h 42m
Ottawa
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$628
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Mon 10/12
12:15 pm-5:35 pm
2 stops27h 20m
Ottawa
Fri 10/16
6:50 am-11:20 am
2 stops54h 30m
$637
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Thu 10/22
7:02 pm-2:30 pm
1 stop17h 28m
Ottawa
Thu 10/29
6:55 pm-8:15 pm
2 stops27h 20m
$667
DenverOttawa
DEN Denver Intl - YOW Ottawa
DENYOW
Denver Intl
Thu 10/8
12:15 pm-3:20 pm
1 stop25h 05m
Ottawa
Wed 10/14
6:55 am-4:58 pm
1 stop12h 03m
$686
Showing 1-10 of 17 resultsSorted by cheapest first
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.
DEN-YOW
COS-YOW
ASE-YOW
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
USCO-YOW
DEN-YOW
COS-YOW
ASE-YOW
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 $420). Flying from Colorado to Ottawa in March is currently the most expensive (average of $1,142). 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 Colorado to Ottawa?
Airfare is below average for this route at the moment.
Colorado to Ottawa flights typically cost between $793 and $878 in October.The cheapest round-trip price found within the last 5 days was $364 on WestJet (Oct 2-Oct 11).
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.
Traveling to a place near Ottawa?
Book flights to Ottawa if you plan to visit one of these locationsGatineau
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
Complete your trip
Flights by cabin class
Other flight options
Ottawa flight routes
Popular flights
Top destinations
Alternative routes for Colorado to Ottawa
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ottawa by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Ottawa by cabin class
Find flights from Colorado to Ottawa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Ottawa flights
Browse other Colorado and Ottawa flight options. Last updated on September 12, 2026.
Other flights to Ottawa
Explore flights to Ottawa departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Colorado to Ottawa flights
Consider these flights traveling from Colorado to Ottawa.
Top 2 airlines flying from Colorado to Ottawa
Discover the top 2 airlines 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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$363 | Average$787 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$509 | Average$873 | FlexibilityNo cancel fee | On-time69% |