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Find cheap flights from Ottawa to Colorado from C$ 290

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Colorado departing on 9/9. 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 7/6
Fri 14/6

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Best Colorado Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Denver
Denver1 stopC$ 514
Colorado Springs
Colorado Springs2 stopsC$ 685

Good to know

Low season

March

High season

September

Cheapest flight

C$ 290
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Ottawa to Denver

FAQs - booking Colorado flights

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

    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 Ottawa to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado from Ottawa 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 Ottawa to Colorado?

    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 Colorado with an airline and back to Ottawa with another airline.

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

    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 Colorado from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Colorado

  • Morning departure is around 609% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ottawa to Colorado

 
Need help choosing which airline to fly with from Ottawa to Colorado? 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 2945 reviews
7.7Boarding
7.3Comfort
8.2Crew
6.5Food
6.5Entertainment
Airline reviews

Too many oversized carryon baggage. If carrier reduced checked luggage fee this could be avoided. The staff were friendly and helpful, very professional.

8.0 ExcellentRoy, May 2024YQT - YWG
Read more about WestJet reviews

Too many oversized carryon baggage. If carrier reduced checked luggage fee this could be avoided. The staff were friendly and helpful, very professional.

Nice smooth flight with pleasant stewards. Slept most of the flight, they could have slowly turned on the lights to make it more pleasant. Otherwise a good trip.

Great! No food was available during the flight due to the catering service strike but snacks were given throughout the flight which was nice.

I wish that seats closer to the front of the plan were available, but when I booked the flight the seats were VERY expensive so I did not book seats at that time. The day before flying only seats at the back of the plane were available. It takes so long to board the plane and empty the plane on arrival due to SO many roller bags.

Crew was rude.didn’t even say hi or welcome to board

Nothing special. Unacceptable wait for baggage on arriving in Calgary

Departure delay on a late night flight. Made us even later. Tired but got home.

Westjet forced me to put my carry-on baggage in check-in probably because I was assigned seat 23A (the last row seat), which had no cabin space, which is unfair. I wanted to carry on my luggage so that I don't have to wait at the airport for my luggage. Also, because there was no cabin space, I was forced to keep my laptop bag under the seat, which I didn't want to as I was carrying 2 laptops and charger. The airline should basically tell people that if you are assigned a last row seat, then you are not allowed a cabin baggage or a personal item.

Easy processing, flight time was quick and staff was professional and kind.

It was delayed by two ours very full no room to move

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Medíocre. The food wasn't good (although not bad, bad) and the staff wasn't kind. I asked for n extra blanket, the steward never came back, serving us roughly.

Generally good. The crew is excellent. The food could be better.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

They charge me for luggage which is was included on the ticket

Boarding was smooth and on time. The seat was comfortable and the entertainment worked. Staff were gracious.

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Everything went smoothly with Air France. There was a delay in departure which seemed to relate to the immigration services being short staffed.

Lost luggage, 2 bags were badly damaged and one of the bags came open.

The line at boarding was not well organized and managed

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the room where it was being kept.

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

T hey did a great job. Flight was on time .

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

Economy seats were surprisingly comfortable, and snacks not too bad. Checked luggage arrived at destination without problems. It was annoying to wait until last to board as lowest-tier seats but understand it’s difficult to gauge when loading a full plane At least checked carryon luggage seemed to come off first. Annoying to have to use app to order food/drink when wifi availability didn’t allow time for it. Advance communication would have helped Food on menu seemed highly processed and unpalatable, overpriced and over packaged. So maybe a good thing to have missed chance to order

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Excellent in flight service, perhaps the best we've ever had. Business class feels tired and needs improvement to compete with other airlines. The food looked good but tasted terrible. Check in was quick, the flight arrived early and our luggage was on our flight with us.

The staff were so kind and helpful. We flew back from NY with another airline and it was horrible. We will always stick with Air Canada as everything was far better!

Touchscreens do not work. WiFi did not work. Food is possibly the worst on any European airline. Drinks came by only four times on a cross-Atlantic. The plane was two hours late because—it was announced—Lufthansa didn't have enough large aircraft in their fleet to accommodate an on-time flight.

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Book cheap flights from Ottawa to Colorado

Recent round-trip flight deals

3/9Tue
1 stopWestJet
9h 25mYOW-DEN
12/9Thu
1 stopWestJet
8h 17mDEN-YOW
C$ 514
25/9Wed
1 stopWestJet
9h 31mYOW-DEN
2/10Wed
1 stopWestJet
8h 21mDEN-YOW
C$ 515
3/9Tue
1 stopWestJet
9h 25mYOW-DEN
12/9Thu
1 stopWestJet
8h 17mDEN-YOW
C$ 520
10/7Wed
1 stopWestJet
9h 25mYOW-DEN
17/7Wed
1 stopWestJet
8h 17mDEN-YOW
C$ 552
8/6Sat
1 stopUnited Airlines
6h 26mYOW-DEN
12/6Wed
1 stopUnited Airlines
15h 55mDEN-YOW
C$ 559
24/10Thu
1 stopAir Canada
6h 20mYOW-DEN
27/10Sun
1 stopAir Canada
6h 01mDEN-YOW
C$ 560
2/7Tue
1 stopAir Canada
19h 06mYOW-DEN
9/7Tue
1 stopAir Canada
9h 24mDEN-YOW
C$ 594
10/7Wed
2 stops
17h 49mYOW-DEN
16/7Tue
1 stop
14h 28mDEN-YOW
C$ 614
10/7Wed
1 stop
9h 39mYOW-DEN
16/7Tue
1 stop
14h 28mDEN-YOW
C$ 644
7/9Sat
2 stopsUnited Airlines
12h 27mYOW-COS
10/9Tue
2 stopsUnited Airlines
9h 41mCOS-YOW
C$ 685

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Recent one-way flight deals

9/9Mon
1 stopWestJet
9h 32mYOW-DEN
C$ 290
8/6Sat
2 stops
17h 03mYOW-DEN
C$ 300
5/7Fri
1 stopUnited Airlines
7h 22mYOW-DEN
C$ 322
9/9Mon
2 stopsWestJet
24h 07mYOW-DEN
C$ 330
5/7Fri
2 stops
22h 01mYOW-DEN
C$ 378
8/6Sat
3 stops
27h 56mYOW-DEN
C$ 407
5/7Fri
3 stops
26h 53mYOW-DEN
C$ 416

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Last minute flights from Ottawa to Colorado

Last minute flight, train and bus deals

9/5Thu
multi-stopAir Canada
6h 35mYOW-DEN
13/5Mon
multi-stopAir Canada
9h 21mDEN-YOW
C$ 1,186
9/5Thu
multi-stopAir Canada
11h 14mYOW-DEN
13/5Mon
multi-stopAir Canada
9h 21mDEN-YOW
C$ 1,189
9/5Thu
multi-stopUnited Airlines
13h 30mYOW-DEN
13/5Mon
multi-stopUnited Airlines
13h 32mDEN-YOW
C$ 1,511
9/5Thu
multi-stopLufthansa
28h 05mYOW-DEN
13/5Mon
multi-stopLufthansa
39h 37mDEN-YOW
C$ 15,931
9/5Thu
multi-stopLufthansa
28h 05mYOW-DEN
13/5Mon
multi-stopLufthansa
39h 37mDEN-YOW
C$ 15,957

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Ottawa - Colorado Flights

Departure:

Ottawa (YOW)Canada

Return flight deals:

Colorado - Ottawa

Cabin classes:

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