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DEN - YOW

Find cheap flights from Denver to Ottawa from $204

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 6/6. 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
0 bags
Fri 5/31
Fri 6/7

Search 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
In the last 7 days travelers have searched 44,052,950 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
11:30 am - 6:52 amDEN-YOW
17h 22m2 stops
4:15 pm - 1:17 amYOW-DEN
11h 02m1 stop
Wed, Jul 24 - Mon, Jul 29
4:15 pm - 11:42 amDEN-YOW
17h 27m1 stop
4:15 pm - 1:17 amYOW-DEN
11h 02m1 stop
Wed, Jul 24 - Mon, Jul 29
11:30 am - 6:52 amDEN-YOW
17h 22m2 stops
12:00 pm - 1:17 amYOW-DEN
15h 17m1 stop
Wed, Jul 24 - Sun, Sep 29
2:20 pm - 12:37 amDEN-YOW
8h 17m1 stop
6:00 am - 1:32 pmYOW-DEN
9h 32m1 stop
$557WestJet
Find Deal
Thu, Aug 1 - Mon, Aug 5
2:20 pm - 2:31 pmDEN-YOW
22h 11m2 stops
3:25 pm - 1:32 pmYOW-DEN
24h 07m2 stops
$580WestJet
Find Deal
Wed, Jul 24 - Mon, Jul 29
9:45 am - 8:51 pmDEN-YOW
9h 06m1 stop
5:55 am - 10:30 amYOW-DEN
6h 35m1 stop
$592Air Canada
Find Deal
Thu, May 23 - Tue, May 28
2:20 pm - 2:31 pmDEN-YOW
22h 11m2 stops
6:00 am - 1:32 pmYOW-DEN
9h 32m1 stop
$593WestJet
Find Deal
Thu, Aug 1 - Mon, Aug 5
5:34 pm - 1:32 amDEN-YOW
5h 58m1 stop
5:30 am - 9:56 amYOW-DEN
6h 26m1 stop
$603Air Canada
Find Deal
Sun, May 12 - Wed, May 15
9:45 am - 8:51 pmDEN-YOW
9h 06m1 stop
5:55 am - 10:30 amYOW-DEN
6h 35m1 stop
$615Air Canada
Find Deal
Mon, May 13 - Wed, May 15
9:45 am - 8:49 pmDEN-YOW
9h 04m1 stop
9:00 pm - 9:56 amYOW-DEN
14h 56m1 stop
$621Air Canada
Find Deal
Thu, Jun 27 - Mon, Aug 5

Flights from Denver to Ottawa - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Denver to Ottawa?

The average price of all flights from Denver to Ottawa clicked on KAYAK for each day over the last 12 months.
For Denver to Ottawa, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Ottawa back to Denver, the best deals are generally found on Thursday, with Wednesday being the most expensive.

What is the cheapest month to fly from Denver to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Denver to Ottawa is May, where tickets cost $570 on average. On the other hand, the most expensive months are September and March, where the average cost of tickets is $853 and $845 respectively.

How far in advance should I book a flight from Denver to Ottawa?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to Ottawa, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 days before departure.

Good to know

Low season

April

High season

July

Cheapest flight

$204
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 12% 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 $204 for a one-way ticket and $499 for a round-trip.

  • Do I need a passport to fly between Denver and Ottawa?

    Yes

  • Which airports will I be using when flying from Denver to Ottawa?

    On your way to Ottawa, you’ll fly out from Denver Intl. You’ll be landing at Ottawa.

  • 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.

  • Which is the best airline for flights from Denver to Ottawa, WestJet or Air Canada?

    The two airlines most popular with KAYAK users for flights from Denver to Ottawa are WestJet and Air Canada. With an average price for the route of $564 and an overall rating of 7.5, WestJet is the most popular choice. Air Canada is also a great choice for the route, with an average price of $666 and an overall rating of 7.0.

  • 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. Booking your flights between Denver and YOW can sometimes prove cheaper using this method.

  • 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.

See more FAQs

Top 3 airlines serving 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.
7.5
WestJetOverall score based on 2970 reviews
6.5Food
7.3Comfort
6.5Entertainment
7.7Boarding
8.2Crew
Airline reviews

food worker strike caused lack of service. I know, not your fault but a bit of a inconvenience.

8.0 ExcellentMark, Apr 2024BNA - YYZ
Read more about WestJet reviews

food worker strike caused lack of service. I know, not your fault but a bit of a inconvenience.

The staff on the WestJet flight were friendly and helpful. The flight was smooth and we arrived 30 minutes ahead of time.

not as spartan as an air Canada flight, less comfortable / no in-flight screen as compared to similar priced Air Transat flight. Crew Cabin were professional and approachable. They got the job done, safe flight, on time despite delay in take off.

There was no entertainment and no announcement till well after I and others asked about it, and no "compensation" (like a free snack)

4 hour delay, lost our bags, staff was loud and it was an overnight flight

Entertainment was the only issue. I did not have app & not equipped to watch movie on my phone. Used to other carriers with access to a screen for viewing. Other than that, everything was fine.

Great flight. Pilot was able to fully make up the 42 minute late arrival of the aircraft for an on time arrival in Toronto.

Westjet delayed then rebooked us on flights for economy class when we paid for business class and now need a refund for fare difference and they aren't getting back to us

Our plane entertainment system was out… That made for a very long flight. In my opinion, WestJet should consider a credit or a partial refund for that.

I liked when we actually were allowed to get on the airplane back to Edmonton… What could’ve been better well, not having our flight be delayed five hours could’ve been better… And then canceling our flight from Edmonton to Toronto, and then rescheduling us to fly from Honolulu to Edmonton -Edmonton to Vancouver, and then Vancouver to Toronto with a 12 hour layover in Edmonton pretty much was hell… Total travel time to get home 38 hours that’s really what could’ve been better. The two gate attendants for WestJet in Honolulu told us to come back to the gate to try to make other arrangements because they had to board the Calgary flight 1st and they didn’t have time to talk to me but by the time I came back when they told us to they said you should’ve come earlier to make these arrangements everyone else already changed their flights… We found out later that 30 people did not get on the 2:30 AM Edmonton flight. They ended up getting on the midnight flight to Calgary and making other arrangements to Toronto and so forth which we could’ve taken advantage of that if they had allowed us to when I initially had went up and approached the two gate attendance one of their names was Denise. One of the kindest WestJet employee was the one who received us in Edmonton, who felt so bad about the entire situation she got us for more meal vouchers and flew us first class from Vancouver to Toronto. In Honolulu they had given us two vouchers to use for dinner and they weren’t valid outside of Canada so we had purchased a meal and they were completely useless… But nowhere did it say that they could only be used in Canada So when we received more food vouchers in Edmonton, all of them did end up working in Canada, but it was just so convoluted. Overall, we have traveled to other countries even going as far as Africa… and that experience was far easier than flying to Hawaii from Canada I cannot believe any of this happened and how inconvenient it was We arrived, exhausted after 38 hours of travel, and could not even go to work on Monday. I look forward to hearing from KAYAK or from WestJet for some sort of compensation over the situation.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Good dinner and nice plane.Smootz flight. Breakfast had no sweet option. Seats hardly reclined.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Cabin crew were great. Seats are criminal for tall people

My flight was great! Gate attendants and crew were great… pleasant and in good spirits. Flight delayed several hours and we were well informed of the status while on plane. Thank you!

The fact that I got to Toronto alive and well and safe is a huge plus. I thank the captain and crew for a safe flight The comfort of the aircraft leaves much to be desired. Human beings should not have to be that cramped and squashed on a flight that we pay a lot for and even have to pay for lousy food choices The cabin crew were pleasant and helpful Kudos to them as the flight was packed to capacity and there was a lot of work for them in a short space of time All in all a good experience, but too cramped

It was great to check carryon luggage at no charge when there was no room for ours. A hidden benefit of having low-tier tickets. Also great to stay off plane as long as possible. Airline gave us seats we wanted on this last leg, again at no charge.

Overall I will say it was a very good experience. It was as comfortable as can be expected for such a long flight - 12 hours from Toronto to Tokyo. Everyone was very pleasant and polite. Even the passengers were cooperative and trying to be nice to each other. Of course the space is limited on such a long flight. The bathrooms were actually very clean. The food was very good. I liked how there was a variety of food options. The in flight entertainment system was also very impressive! There were some children on the flight but they were well behaved and hardly ever crying. Great Job Canada Air! I will definitely fly with Air Canada again!

Book cheap flights from Denver to Ottawa

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to Ottawa found on KAYAK in the last 72 hours.
6/6Thu
2 stops
37h 52mDEN-YOW
$204
6/5Wed
1 stop
14h 38mDEN-YOW
$266
6/6Thu
3 stops
23h 56mDEN-YOW
$275
6/6Thu
1 stop
17h 27mDEN-YOW
$282
6/5Wed
2 stops
12h 53mDEN-YOW
$315
6/5Wed
3 stops
13h 40mDEN-YOW
$354

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Last minute flights from Denver to Ottawa

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to Ottawa that are departing in the next 10 days.
5/5Sun
multi-stop
8h 21mDEN-YOW
5/7Tue
multi-stop
6h 35mYOW-DEN
$618
5/6Mon
multi-stopAir Canada
5h 58mDEN-YOW
5/13Mon
multi-stopAir Canada
8h 26mYOW-DEN
$625
5/5Sun
multi-stopUnited Airlines
8h 21mDEN-YOW
5/7Tue
multi-stopUnited Airlines
10h 16mYOW-DEN
$637
5/4Sat
multi-stopUnited Airlines
5h 57mDEN-YOW
5/6Mon
multi-stopUnited Airlines
6h 33mYOW-DEN
$649
5/4Sat
multi-stopUnited Airlines
5h 57mDEN-YOW
5/6Mon
multi-stopUnited Airlines
15h 27mYOW-DEN
$659
5/6Mon
multi-stopUnited Airlines
13h 32mDEN-YOW
5/13Mon
multi-stopUnited Airlines
16h 07mYOW-DEN
$687
5/5Sun
multi-stop
13h 12mDEN-YOW
5/7Tue
multi-stop
20h 56mYOW-DEN
$782
5/4Sat
multi-stop
13h 14mDEN-YOW
5/7Tue
multi-stop
20h 56mYOW-DEN
$963
5/4Sat
multi-stopUnited Airlines
12h 09mDEN-YOW
5/6Mon
multi-stopUnited Airlines
13h 07mYOW-DEN
$1,034
5/4Sat
multi-stop
14h 46mDEN-YOW
5/7Tue
multi-stop
15h 59mYOW-DEN
$1,152

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Denver - Ottawa Flights

Departure:

Denver (DEN)United States

Destination:

Ottawa (YOW)Canada

Return flight deals:

Ottawa - Denver

Cabin classes:

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