DEN - YOW

C$ 243 Find Cheap Flights from Denver to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Ottawa departing on 14/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Ottawa, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 568
Multiple Airlines
Sat 28/3Mon 6/4
DEN - YOW • 2 stops
Cheapest one-way flights
C$ 243
Typical prices: C$ 451-C$ 517
Multiple Airlines
Tue 14/4
DEN - YOW • 2 stops
Top airlines
WestJet
Cheapest • from C$ 820 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Denver and Ottawa. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Washington, D.C. (IAD)
Cheapest • Avg C$ 571 (round-trip)
Toronto (YYZ)
Shortest trip • 5h 55m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ottawa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Ottawa (DEN-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Ottawa

Sat, 28 Mar - Mon, 6 Apr
Multiple Airlines Logo
8:00 a.m. - 12:35 p.m.
DEN
-
YOW
26h 35m
2 stops
Multiple Airlines Logo
9:35 a.m. - 11:08 p.m.
YOW
-
DEN
15h 33m
1 stop
C$ 568Multiple Airlines
Tue, 14 Apr - Wed, 22 Apr
Multiple Airlines Logo
10:38 a.m. - 9:30 p.m.
DEN
-
YOW
8h 52m
1 stop
Multiple Airlines Logo
7:00 a.m. - 10:29 p.m.
YOW
-
DEN
17h 29m
2 stops
C$ 592Multiple Airlines
Thu, 26 Mar - Mon, 6 Apr
Multiple Airlines Logo
6:45 a.m. - 12:25 a.m.
DEN
-
YOW
39h 40m
2 stops
Multiple Airlines Logo
9:35 a.m. - 11:08 p.m.
YOW
-
DEN
15h 33m
1 stop
C$ 616Multiple Airlines
Thu, 23 Apr - Thu, 30 Apr
Multiple Airlines Logo
6:30 a.m. - 9:30 p.m.
DEN
-
YOW
13h 00m
1 stop
Multiple Airlines Logo
10:00 a.m. - 10:59 p.m.
YOW
-
DEN
14h 59m
2 stops
C$ 621Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr
Multiple Airlines Logo
9:00 p.m. - 5:25 p.m.
DEN
-
YOW
18h 25m
2 stops
Multiple Airlines Logo
10:35 a.m. - 9:44 p.m.
YOW
-
DEN
13h 09m
1 stop
C$ 629Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr
Multiple Airlines Logo
9:00 p.m. - 5:25 p.m.
DEN
-
YOW
18h 25m
2 stops
Multiple Airlines Logo
10:35 a.m. - 9:44 p.m.
YOW
-
DEN
13h 09m
1 stop
C$ 644Multiple Airlines
Fri, 10 Apr - Sun, 19 Apr
Multiple Airlines Logo
11:59 p.m. - 11:58 p.m.
DEN
-
YOW
21h 59m
1 stop
Multiple Airlines Logo
9:30 a.m. - 11:19 p.m.
YOW
-
DEN
15h 49m
2 stops
C$ 649Multiple Airlines
Sat, 28 Mar - Mon, 6 Apr
Multiple Airlines Logo
7:00 a.m. - 12:02 a.m.
DEN
-
YOW
15h 02m
1 stop
Multiple Airlines Logo
9:35 a.m. - 11:08 p.m.
YOW
-
DEN
15h 33m
1 stop
C$ 654Multiple Airlines
Thu, 26 Mar - Tue, 14 Apr
Multiple Airlines Logo
9:00 p.m. - 12:25 a.m.
DEN
-
YOW
25h 25m
2 stops
Multiple Airlines Logo
10:35 a.m. - 9:44 p.m.
YOW
-
DEN
13h 09m
1 stop
C$ 657Multiple Airlines
Wed, 8 Apr - Wed, 15 Apr
Multiple Airlines Logo
11:59 p.m. - 11:58 p.m.
DEN
-
YOW
21h 59m
1 stop
Multiple Airlines Logo
7:00 a.m. - 10:29 p.m.
YOW
-
DEN
17h 29m
2 stops
C$ 660Multiple Airlines
Booking Insights

KAYAK's insights & trends for Denver to Ottawa flights

Get data-powered insights and trends into flights from Denver to Ottawa to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Denver to Ottawa?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Denver to Ottawa were found on WestJet (C$ 820) and United Airlines (C$ 982).

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Good to know

Low seasonMarch
Cheapest flightC$ 243
Best time to beat the crowds (71% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Denver to Ottawa

When to book flights from Denver to Ottawa

Are your dates flexible? Find out the best times to travel from Denver to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Ottawa

  • What is the cheapest flight from Denver to Ottawa?

    In the last 3 days, the lowest price for a flight from Denver to Ottawa was C$ 243 for a one-way ticket and C$ 592 for a round-trip.

  • Which aircraft models fly most regularly from Denver to Ottawa?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Ottawa?

    Star Alliance is the only airline alliance operating flights between Denver and Ottawa.

  • How does KAYAK find such low prices on flights from Denver to Ottawa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Ottawa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Ottawa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Denver to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from Denver to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9418 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

10.0 ExcellentAnonymous, Feb 2026
DEN - RSW
Read more United Airlines reviews

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Everything you need to know for your flight from Denver to Ottawa

Information on your arrival and departure airports

Denver (DEN)
Ottawa (YOW)