Find cheap flights from Colorado to Montreal

Find cheap flights from Colorado to Montreal

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Boston (BOS)
Montreal All airports
Tue 5/18
Tue 5/25
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Good to know

Low season

AugustBest time to beat the crowds with an average 2% drop in price.

High season

DecemberMost popular time to fly with an average 5% increase in price.

Average price round-trip

$396(avg. price over the last 2 weeks)

Good deal round-trip

$163or less

Good deal one-way

$105or less

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Top 4 airlines serving from Colorado to Montreal

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,266 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Cons: "100% as always.. delta has never disappointed! Keep up the good work guys"

Cons: "Delta.... they’rrrrrr Grrrreaaate!"

Pros: "Most of the crew was great with the exception of curbside check-in in Denver."
Cons: "Curbside needs to stop chasing cash tips and do their jobs. If they focused on that tips would be easy to come by. The curbside attendant that took my bag didn’t even bother to check my id. He asked me my name and asked where my destination was. I told him Cincinnati as a layover then LaGuardia where he said that was wrong. He then proceeded to print a boarding pass that wasn’t mine and load my bag into the conveyor. Not 5 mins go by when I realize what happened I wound up having to go to special services to rectify the situation. Which ultimately consisted of me waiting another hour in LaGuardia to get my bag. Please delta have these curbside handlers actually want to do their job and stop chasing cash tips."

Pros: "Good"

Cons: "being on time"

Pros: "This is a delayed flight after having my flight to the previous night delayed to the extent that I could not take it and make my connecting flight out of Minneapolis."
Cons: "This is a delayed flight after having my flight to the previous night delayed to the extent that I could not take it and make my connecting flight out of Minneapolis."

Pros: "N/A"
Cons: "N/A"

Pros: "Flight left on time and landed on time"

Pros: "Quick flight...ahead of schedule"
Cons: "Cheese It’s are boring...miss the snack mix"

Pros: "Flight was delayed for more than 3 hours."
Cons: "Could have left on or close to schedule."

Cons: "Slow WiFi"

Cons: "Choice of healthier snack"

Pros: "Nothing spectacular."
Cons: "The headrests won’t stay up. And it’s hot."

Cons: "Have rhe right to carry at least one luggage per person at no cost. Besides carry on and personal item. Tickets prices and luggage costs are extremely expensive."

Pros: "Staff from Check in to aircraft very pleasant. Snack choice in Coach impressive."

Cons: "Uncomfortable chairs for a three hour flight"

Pros: "Check in Denver super helpful Gate staff hustled to turn around flight Flight crew excellent"
Cons: "Flight delayed, almost missed international connections"

Pros: "Boarding, friendliness of staff"

Pros: "On time"

Pros: "Everything was easy and smooth."

Pros: "Short flight"
Cons: "In SLC they boarded by row numbers and not zones. Weird..."

Cons: "Engine problems-2 hour delay"

Pros: "The fact that there was a screen for movie selections and a charging port for my phone and the flight attendants were super nice"

Pros: "Good flight crew"
Cons: "Delayed due to mechanical issues. For 3 hours. No offers for free drink or wi fi. When we finally land we were on the runway for half hour."

Pros: "Everyone was fairly friendly"
Cons: "Cramped foot room"

Cons: "Bags never arrived at the listed baggage claim. After 45 min, I saw bags on a different claim station and I notified everyone standing around. BUT, I filed a claim with Delta and was immediately given 2500 miles, as guaranteed!"

Pros: "Nothing!"
Cons: "Everything"

Pros: "Delta is great"

Cons: "The crew forgot to turn the heater on in -3°F creating a situation where the lavatory water lines froze. This caused a two hour delay which made me miss the second leg. Because I missed the second leg I was put on the very last flight out of ATL and got to spend Xmas eve in the airport."

Pros: "it was easy to navigate ."

Pros: "Nothing"
Cons: "Let me just say that I’m a loyal Delta costumer until now. The flight attendants (the two women) were an absolute nightmare. They were so rude and condescending. I was carrying with me my service dog and a bag containing an expensive medication (it couldn’t go on the top bin). Despite being in the comfort class and having the seat next to me empty, we were tight for space. The flight attendants were unreasonable and forced me to put my medication on the top bin despite the fact I had told them it was extremely delicate, that it that to go upright, and that I needed to keep it with me. They did not listen and pressured me into giving them the medication. The medication could have easily gotten broken. Thankfully it didn’t but this is no way to treat a human being."

Cons: "Very uncomfortable seats Oddly shaped overhead bins, unable to put standard sized bags overhead, meanwhile they fit in planes of other major airline companies such as American Airlines. No food options, only sweet biscuit which contains soy and milk."

Pros: "What a city.. Unique for hell sure..."
Cons: "Nothing"

Pros: "Boarding super excellent! Also: Best landing I've ever experienced! Props to the pilot!!"

Pros: "Newer plane with movies."
Cons: "Airlines pack you on so tight."

Pros: "Clean plan and efficient boarding procedure."
Cons: "Horrible delay. Took off almost two hours post originally scheduled time."

Pros: "Nothing"
Cons: "I could not check in on the kiosk and I had to go to two agents before they could find my reservation. The lines were extremely long and the customer service was poor."

Cons: "I fly Delta quite often, and am usually pleased with their service, but the morning of June 23 was terrible. I got to the airport in Denver at 5:30 am for a 7:30 am flight to Atlanta, and the line to check a bag was about 40 people long. I waited 55minutes to check my bag, as they kept moving the ski priority people, and people in danger of missing their flight, to the head of the line. There were obviously not enough Delta workers on staff to process all the flights at that time."

Pros: "The moviea"
Cons: "The time of night"

Pros: "I didn't like anything because the fly leat 3 hours"

Cons: "Almost everything"

Pros: "Smooth ride. Delta got everything right from takeoff to landing."

Pros: "The flight attendants were so nice and accomadating. Even came by to refill our waters! I've never been on a flight with such friendly flight attendants!"

Pros: "Friendly service. On-time."
Cons: "No tv's in airplane."

Cons: "I drove 5 hours to get to the airport and unfortunately ended up delayed because of traffic and slow shuttles from parking. I arrived 1 hour before the flight, but security was so slow I didn't get to the gat until 10 minutes before arrival. There were no gate agents present and despite banging on the gateway door and other Delta agents at the adjacent gate, no one helped me. I can only surmise that they had already given away our seats, which were award tickets, GAINED BY BEING A LOYAL DELTA CUSTOMER. The gate agents were unapologetic and useless at rebooking, and I bought a ticket from Southwest instead. As i was trying to get to my sister's wedding, and repeatedly told the agents this, their behavior was particularly abominable. DELTA, YOU'VE LOST A LOYAL CUSTOMER."

Cons: "Seats too close - I'm not that tall and my knees were jammed against the seat in front of me."

Pros: "Plane was clean and staff were friendly"
Cons: "The snack options were quite average"

Pros: "Excellent customer service. That doesn't seem to happen too often with airlines. Delta has been outstanding."
Cons: "No complaints."

Pros: "on time travel care in treating my visitors from Kenya Africa"

Pros: "Yes made sure mask was in place"
Cons: "No"

Pros: "I used frequent flyer miles for the tickets."
Cons: "The crew was late getting to the gate. All of them talked to me like I was a child they were disappointed in. No one smiled. I thought all of the crew was mad at us for using their airline."

Cons: "Overbooked and crowded, on a Sunday."

Pros: "Crew was nice"
Cons: "Lots of empty seats... during covid/social distancing there should only be 2 ppl in a row especially if there is room...it was crowded and not consistent with signs posted saying stay 6 ft apart"

Cons: "Everything was dandy!"

Pros: "Nothing."
Cons: "Everything"

Cons: "You were out of earphones"

Pros: "We were allowed to board early with my father, who is disabled."
Cons: "Denver airport was a nightmare with my disabled father. We were given a “wheelchair” but no escort through a nightmarish security scene. Airport is terribly designed, lacking clear signage and navigation. TSA was a disaster and no one seemed remotely concerned about my father’s comfort or needs."

Cons: "We stay stuck in PVR"

Cons: "Less boarding groups"

Cons: "I have changed flights. Been delayed 5 times now. And still haven’t left the USA."

Cons: "I researched and called and found a 45L backpack so I could carry on my dive bag. That’s the reason I’m going all the way to Fiji. Not letting me get it in LA I’d also ridiculous."

Cons: "They have very long and annoying credit card announcements"

Cons: "Delay due to equipment failure, were not able to estimate delay"

Pros: "American"

Pros: "Nothing."

Cons: "The crew was a little late"

Pros: "Not using kayak"
Cons: "Kayak booked me the worst itinerary in the history of air travel!"

Cons: "Super TSA lines in Denver and American employees were less than accomadating or did not meet any kind of customer service expectation. Terrible airline!"

Pros: "Nothing!"
Cons: "Almost everything!"

Pros: "Pilot made up time so we made it in early!"

Pros: "The helpful steward"
Cons: "The bumpy ride"

Pros: "On time. Efficient boarding."
Cons: "Stingy with the cookies. Somewhat uncomfortable seating. But what can anyone expect anymore?"

Pros: "Boarding moved along well, even though there wasn’t special boarding for families with young children. The plane was really comfortable (new 2x2) and the staff was really friendly."

Pros: "Service was one of the best I have received for an airline."

Pros: "Friendly service"

Cons: "It was advertised that one can see entertainment through WIFi, but from my iPad, i can't connect to this WiFi. I tried several times until I just gave up."

Cons: "Getting to the airport early and waiting an additional ten minutes on the tarmac."

Pros: "Food and entertainment were great"

Pros: "Everything was on time and handled efficiently and courteously. I was pleased with everything."

Cons: "Too cold, even with air off above me."

Pros: "All good, except poor prep on food"
Cons: "As above"

Pros: "Good connection"

Pros: "I like that American offers free movies thru their app but there was a glitch and I couldn't get it to work!"
Cons: "Couldn't get the entertainment app to work"

Cons: "Maintenance problems, late departures, uncomfortable airlines"

Pros: "Everything"
Cons: "Nothing"

Pros: "Everything was on time!"

Pros: "Nothing"
Cons: "Everything"

Cons: "Delayed flight due to crew."

Pros: "Getting through security was a lot better than I thought. Also, I had plenty of room and the overall ride was smooth."
Cons: "I just wish that there was a little more room and easier ways to earn miles and entry into the lounge."

Pros: "No complaints. Keep up the good work, American!"
Cons: "I don't like the fact that food has to be purchased. I liked it much better when the food was included in the price, as it still lives in the major international overseas airlines."

Pros: "Wi fi did not work."

Cons: "Sitting on the runway after landing because the gate is occupied."

Pros: "No surveys"
Cons: "No surveys"

Pros: "El problema es que el vuelo estaba sobrevendido y han cerrado las puertas antes con lo cual me he quedado abajo sin pode abordar. En el aeropuerto de Denver habia solo dos personas en el securty check por lo cual la demora fue involuntaria en mi caso. Cuando estoy haciendo la fila para ingresar al avion (esyando en la misma cola antes de ingresar) me informanque no podre embarcar..(claro ya habia designado mi billete a otras personas. pesima atencion y pesimna experiencia con los empleados de ese vuelo. Denver a Miami"

Pros: "The Denver airport is beautiful"
Cons: "I will never fly AA again - see below"

Pros: "Love the movies!!!"
Cons: "Passengers are allowed to take too much on the plane, which makes boarding & getting off take WAY TO LONG. If American would follow Southwest and allow 1 free bag, this problem would end. E"

Pros: "On time, friendly and helpful staff at airport and on aircraft"
Cons: "Nothing"

Pros: "I liked everything from the way they got everyone on the plane to getting everyone deplaned."
Cons: "I didn't have a problem with the airline. Just a couple of passengers."

Pros: "Friendly service"
Cons: "Snacks"

Pros: "The boarding was smooth and quick, flight arrived early. Service onboard was very good"

Pros: "No leg room"

Pros: "The full experience"

Cons: "Our direct flight to Montreal was canceled due to mechanical issues. The rebooking process was discombobulating and we ended up arriving at our destination after the rerouting that was stressful and ensured that we lost a whole day of our vacation time. Our flight back the entertainment system in our seats did not function."

Pros: "Flight was on time. Personal entertainment is very good and crew was great."
Cons: "Boarding is always a bit chaotic with the carry on bags. I am tall, so economy seats are always uncomfortable."

Pros: "The flight was perfect. Stress free. I will definitely get it again."

Pros: "Online booking,boardong pass, alerts"

Cons: "movie selection is poor and using your own device isnt that enjoyable. Girl at counter was demeaning."

Pros: "Good service"

Pros: "Everyone was very pleasurable"

Pros: "Able to upgrade to 1st class"
Cons: "Customs what a cluster of confusion"

Cons: "Always delayed."

Pros: "Good selection of TV and film's"

Cons: "It was cancelled."

Pros: "Nothing"
Cons: "AC Ticket attendants were unbelievably rude."

Cons: "Splitting couples in different seats. The only way to seat together was to pay extra."

Pros: "The tv for each individual person"
Cons: "Always late."

Pros: "Nothing"
Cons: "Air Canada was a horrible experience from beginning to end"

Cons: "No monitoring of travel route"

Pros: "on time"

Pros: "Everyone was nice and the seating area had room."

Pros: "I paid 10.00 for nuts... that is nuts!"

Cons: "The waiting room in Boston was awful and behind security, hot, small crowded. Delayed"

Pros: "I liked the comfort and the service"
Cons: "the long delay in Montreal"

Pros: "Check in and boarding process ok."
Cons: "Had to buy meal on the SFO-Montreal leg, which was at the snack/wrap level. Constraint space seats."

Pros: "Excellent service as always !"

Pros: "We arrived ontime."

Pros: "Everything was professional. The pilots was awesome"

Cons: "Very uncomfortable seats."

Cons: "Deplaning and entering the terminal was delayed substantially."

Pros: "Never flown "air canada", was a bit apprehensive. But I was very much happy & pleasantly surprised!"

Pros: "I got to Montreal"

Pros: "All"
Cons: "Nothing"

Cons: "Long time till take off."

Cons: "Love it"

Pros: "Very nice people, seats large enough"
Cons: "impossible to work on my computer, plug without enough power turn off automatically"

Pros: "it was on time landed a few minutes early stewerdess were very nice"

Pros: "Great"

Cons: "They charged us 25 dollars for a carry on bag which was unfair. They didn't charge anyone else. When I came back I was not charged. I would like a refund. The people were very rude! I take that bag on trips weekly. I should have not been charged."

Cons: "Was a bit of a pain when I wanted to simply get off the plane in Geneva since it would be shorter, but then the plane was late, but that can't be helped"

Pros: "Love Air Canada"

Pros: "Everything was ok ! I love late departures"
Cons: "From Cancun to Mtl, we had to wait 2 hours before boarding!"

Pros: "Everything was well organized and we were able to depart sooner than scheduled."
Cons: "There were some items on the menu that were not actually available."

Cons: "The seat I sat in felt lumpy. Its also always so loud in the smaller planes, but I knew that."

Cons: "Sound wasn't working on TV set."

Pros: "Left on time"
Cons: "Trouble at gate landing. Took a long time to off load"

Pros: "A Nice airport"
Cons: "The film are very on The iPad"

Pros: "On time or early"

Pros: "nothing"
Cons: "over 1 hour to check-in? what is the point of printing our boarding passes in advance? poor planning to have 2 flights checked in at the same time"

Pros: "Love the look of the Halifax Airport after its renovations , brighter than it used to be, Check-in and boarding went very quickly The plane took on extra fuel just n case we had a layover in Toronto because of poor weather but that didn't happen"
Cons: "The possibility of a layover in Toronto because of poor weather lol"

Pros: "There was nothing I liked. The plane was an hour late and nearly missed my connection."

Cons: "Flight delayed"

Cons: "My son was flying on United from Colorado Springs to Denver, then on to Seattle for Thanksgiving. He rushed through as quickly as he could, but the door to the place was closing and it left 10 minutes early. United recorded him as a 'No Show', and there policy now is to cancel the entire ticket is you miss any segment of a round trip ticket. Thus, his entire $900 was forfeited, he couldn't even pay a change fee to catch a later flight. I hate American, and now I hate United just as much. These airlines shills have been allowed to go out of business when they last filled for bankruptcy. We fly in quite a few international airlines, and outside of Alaska, Jet Blue and Delta, maybe Southwest, US carriers are absolutely bottom of the barrel and it's clear that their employees don't care whatsoever. Will never book again in United or American. I'll try Amtrak before either of those carriers."

Cons: "I ran to the gate from my previous flight, but it turned out this flight had been delayed. The flight boards and United app didn't show that though."

Cons: "I was flying with Air Canada. The UI for watching movies was not good, it had a hard time to respond to the inputs. It was also hard to move the videos forward to the part I needed. Plus, the audio wasn't working well with my own earphones."

Pros: "Getting home."
Cons: "It was an older airplane. For a long flight from Montreal to San Francisco, a plane with more room would be more humane. People were lined up for the bathrooms most of the trip since could not use the small first class bathroom. If one wanted a meal, it was one you had to pay for. Broken monitor"

Pros: "We boarded quickly. That was nice."
Cons: "The plane was old and tiny with barely any room for carry on. And no in flight entertainment or WiFi or anything. Bummer."

Pros: "Excellent stewardess. On time."

Pros: "There is nothing to like about Air Canada's Rouge service. Their sardine seat layouts are amongst the worst in the industry."
Cons: "1. Seat comfort. 2. On-time departure. 3. Boarding Procedures. 4. Pre-boarding announcements."

Cons: "Wouldnt refund my ticket or change my flight when I needed to change it fee for everything"

Pros: "Nice flight!"
Cons: "Huge line to take off at Newark Airport"

Pros: "Staff always amazing."
Cons: "No Wi-Fi available."

Pros: "Clean plane, comfy seats and friendly staff"
Cons: "All was good. Didn’t have any problems."

Pros: "Colorado Springs is one of my favorite airports. It is well run and maintned, friendly and efficient"
Cons: "The seat in the exit row was uncomfortable"

Pros: "Nothing."
Cons: "Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination."

Pros: "Great service! Smooth flight!"

Pros: "The planes weren’t overly packed and everyplane was on time"
Cons: "None"

Pros: "Everyone was really nice."
Cons: "Not enough free food options for active duty flyers."

Pros: "I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket."
Cons: "The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else."

Pros: "Good flight"
Cons: "Why can’t the plane be boarded from the back to the front. Seems like that would be easier for all passengers. Also, I picked assigned seats when I purchased the tickets and my husband and I where separated in different rows."

Pros: "I typically dont fly with united, and this was a typical experience, staff was not friendly, terminal and gate change at last minute after I walking all the way to the gate, then another delay after we were boarded, now this was more airport related then United, but after they told us it was a 45min delay someone asked if we can use our phone or computer and the answer was a stern no with no explanation until someone got really upset, just not a professional experience, and this was why I don't fly united. But I had no choice this time."

Pros: "1 hour late"

Pros: "Nice attendant, food OK, no delay."
Cons: "Internet costs"

Pros: "Quick Hop"
Cons: "Just a quick hop to Denver"

Pros: "I really liked the flight attendant. He was funny and kind."

Pros: "It was two hrs late"

Pros: "COS airport security was friendly, cooperative, helpful. With first flight since knee replacement I was worried about getting through security. TSA personnel were very patient."
Cons: "Seating was tight. Not sure how anyone could watch movies because the screen is so close to face."

Pros: "Nothing."
Cons: "Multiple long delays."

Pros: "Flights were fine once we got off the ground."
Cons: "Flight was delayed 6 hours, not due to weather. Really unfortunate that I had to spend an entire day of a long weekend sitting in an airport. Wasn't reimbursed at all for any of the mess, but I guess that is life!"

Pros: "Good"
Cons: "Very good information"

Pros: "Flight on time!"
Cons: "The plane was small and bags barely fit on board"

Pros: "Everyone we dealt with was unbelievably kind and helpful. They had a wheelchair at the gate and helped push my disabled brother which was such a help for my elderly parents to make their connections. When I got my parents their tickets I was very apprehensive that it might be difficult making the connections but thanks to United's wonderful service their whole experience was fantastic. In the future I will always try to book United."

Cons: "Flight delay"

Pros: "It was quick."
Cons: "I had to RUN through the airport to get connecting flight. I had to pay and check a carry-on because my first flight was delayed and there wasn't time to wait for my bag. If I'd have known I'd have taken a regular sized suitcase."

Cons: "Boarding is disorganized"

Pros: "Snack delicious"

Pros: "Short lflight"
Cons: "NA"

Pros: "Seating was nice, middle seat was empty"
Cons: "I landed at F1 and had to run to C29. No time to even grab a snack!"

Pros: "Nothing"
Cons: "The flight was delayed more times than I can count & cancelled around midnight. AWFUL!"

Pros: "My flight wasn't full so I had no one sitting next to me."
Cons: "Snack wasn't very good"

Pros: "On time and friendly crew."
Cons: "Boarding group."

Pros: "Flight attendants wear very pleasant and polite. PA system worked very well I was able to understand all notices and instructions. Thank you to the crews."

Pros: "Snacks is good and healty."

Pros: "On time"

Pros: "Time and confort"

Pros: "Nice employees"

Pros: "The worse trip. the last 8 people in check in was off on the air plane ."

Cons: "Check in was was understaffed waited for 30 before assisted"

Pros: "Quick flight and also very nice people working. They took good care of us for our short time with them."
Cons: "I have no complaints about this flight. It went very smooth."

Pros: "Quick and on time"
Cons: "Personnel"

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Colorado to Montreal

Airlines flying from Colorado to Montreal have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Colorado to Montreal

Mandatory masks

Masks required on board, masks provided on flights from Colorado to Montreal

Social distancing seating

Middle seats unavailable to book on flights from Colorado to Montreal

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Colorado to Montreal

Book cheap flights from Colorado to Montreal

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United Airlines
17h 05m
DEN - YUL
8/21
Sat
2 stops
Multiple Airlines
20h 55m
DEN - YUL
8/19
Thu
1 stop
American Airlines
10h 43m
DEN - YUL
6/23
Wed
1 stop
American Airlines
10h 50m
DEN - YUL
8/24
Tue
3 stops
Multiple Airlines
15h 02m
DEN - YUL
5/28
Fri
2 stops
Delta
14h 57m
DEN - YUL
5/28
Fri
1 stop
American Airlines
6h 33m
DEN - YUL
5/28
Fri
2 stops
Delta
13h 07m
DEN - YUL
8/23
Mon
3 stops
Multiple Airlines
13h 17m
DEN - YUL
6/24
Thu
3 stops
Multiple Airlines
14h 06m
DEN - YUL
5/26
Wed
1 stop
American Airlines
8h 52m
DEN - YUL
5/26
Wed
2 stops
Delta
13h 07m
DEN - YUL
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