YUL - SOF

C$ 612 Find Cheap Flights from Montreal to Sofia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Sofia departing on 25/6. 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
1 adult, Economy, 0 bags

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

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

Cheapest round-trip
C$ 796
Overall average: C$ 1,461
Multiple Airlines
Mon 18/5Thu 4/6
YUL - SOF • 1 stop
Cheapest one-way flights
C$ 612
Multiple Airlines
Thu 25/6
YUL - SOF • 3 stops
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 15% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Sofia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Montreal to Sofia (YUL-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Sofia 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 Montreal to Sofia

Mon, 18 May - Thu, 4 Jun
Multiple Airlines Logo
11:00 p.m. - 7:30 p.m.
YUL
-
SOF
13h 30m
1 stop
Multiple Airlines Logo
8:10 p.m. - 9:00 p.m.
SOF
-
YUL
31h 50m
1 stop
C$ 796Multiple Airlines
Wed, 18 Mar - Tue, 31 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
8:20 p.m. - 9:00 p.m.
SOF
-
YUL
31h 40m
1 stop
C$ 805Multiple Airlines
Wed, 18 Mar - Tue, 24 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
8:25 p.m. - 8:40 p.m.
SOF
-
YUL
30h 15m
1 stop
C$ 816Multiple Airlines
Wed, 18 Mar - Sat, 28 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
7:45 p.m. - 9:00 p.m.
SOF
-
YUL
31h 15m
1 stop
C$ 819Multiple Airlines
Sun, 8 Feb - Thu, 26 Feb
Multiple Airlines Logo
9:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
8:00 p.m. - 7:40 p.m.
SOF
-
YUL
30h 40m
1 stop
C$ 828Multiple Airlines
Sun, 15 Mar - Tue, 24 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
8:25 p.m. - 8:40 p.m.
SOF
-
YUL
30h 15m
1 stop
C$ 832Multiple Airlines
Fri, 29 May - Thu, 11 Jun
Multiple Airlines Logo
11:00 p.m. - 9:45 a.m.
YUL
-
SOF
27h 45m
1 stop
Multiple Airlines Logo
8:10 p.m. - 9:00 p.m.
SOF
-
YUL
31h 50m
1 stop
C$ 834Multiple Airlines
Sun, 15 Mar - Sat, 28 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
7:45 p.m. - 9:00 p.m.
SOF
-
YUL
31h 15m
1 stop
C$ 836Multiple Airlines
Sun, 15 Mar - Tue, 31 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
8:20 p.m. - 9:00 p.m.
SOF
-
YUL
31h 40m
1 stop
C$ 838Multiple Airlines
Sun, 15 Mar - Sun, 29 Mar
Multiple Airlines Logo
10:40 p.m. - 7:10 p.m.
YUL
-
SOF
14h 30m
1 stop
Multiple Airlines Logo
10:30 a.m. - 9:00 p.m.
SOF
-
YUL
17h 30m
1 stop
C$ 844Multiple Airlines
Booking Insights

KAYAK's insights & trends for Montreal to Sofia flights

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

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sofia, 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 Montreal Pierre Elliott Trudeau Intl Airport to Sofia is April, where tickets cost C$ 1,180 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is C$ 1,579 and C$ 1,495 respectively.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia, you should book around 2 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 612
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (4% more expensive on average)
Flight from Montreal to Sofia

When to book flights from Montreal to Sofia

Are your dates flexible? Find out the best times to travel from Montreal to Sofia 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 Montreal to Sofia flights

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia?

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia was C$ 612 for a one-way ticket and C$ 796 for a round-trip.

  • Which aircraft models fly most regularly from Montreal to Sofia?

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

  • Which airline alliances offer flights from Montreal to Sofia?

    oneworld, and Star Alliance are the airline alliances operating flights between Montreal and Sofia, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Montreal to Sofia, Austrian Airlines or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Sofia are Austrian Airlines and Turkish Airlines. With an average price for the route of C$ 1,577 and an overall rating of 7.5, Austrian Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of C$ 1,511 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Montreal to Sofia?

    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 Montreal to Sofia.

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

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

  • What is the Hacker Fare option on flights from Montreal to Sofia?

    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 Sofia with an airline and back to Montreal with another airline.

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

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

Reviews of the top 5 airlines flying from Montreal to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Sofia. 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 Montreal to Sofia? 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
Austrian AirlinesOverall score based on 895 reviews
6.8Food
8.1Crew
7.3Comfort
7.6Boarding
6.8Entertainment
Airline reviews

We were delayed three hours from Montenegro to Vienna on our outbound flight and then rebooked an extra leg on our trip to the US. Our bags, which Austrian made us check in in Montenegro even though the flight was barely half full, didn't find us for ten days. Then, when we asked for compensation for the delay we were given the runaround that the flight originated outside of the EU. Next time we fly Turkish Air.

8.0 ExcellentNate, Jan 2026
IAD - VIE
Read more Austrian Airlines reviews

We were delayed three hours from Montenegro to Vienna on our outbound flight and then rebooked an extra leg on our trip to the US. Our bags, which Austrian made us check in in Montenegro even though the flight was barely half full, didn't find us for ten days. Then, when we asked for compensation for the delay we were given the runaround that the flight originated outside of the EU. Next time we fly Turkish Air.

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Most of the crew members were rude, flight arrived late and we missed our connecting flight, they damaged my friends suitcase so badly that two wheels had been destroyed.

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

My layover in Vienna was supposed to be 35 minutes but because my flight was canceled I had to wait in the airport for an additional 8 hours.

Very limited legroom in a 10 hour flight.very old plane.

The flight was delayed for 30 minutes with no apparent reason. There is no entertainment at all, and no USB or electric outlets for charging your phone or tablet.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

My, Syed Zawar Hussein Shirazi frequently flyer membership number was not included on my boarding pass from O’Hare to Istanbul despite my reminder to the attendant at check in. Further she forgot to give me my boarding pass form Istanbul to Lahore and she needs to improve her customer service, please 🙏

Space between seats is challenging but otherwise excellent service in every way.

Awful seating. Bad food. Staff only have one bottle of water and no cans.

My seat number was changed unilaterally after confirmed online checkin from widow to aisle. This applies to the Istanbul-Port louis flight. Seat was also changed for the Antalya-Istanbul flight but this was because of aircraft change, I was informed. That flight was delayed because of a technical problem with the original aircraft.

flight was full and folks coming from Dubai all wear this strong perfume (OUD) which is annoying. Also, not sure why but these fools all stand up and get ready to bail once the plane stops. they seem to all run for the door which is funny AF. Plane was a 2 4 2 configuration and kind of an older plane with USB connection. Food wasn't that great either. Not sure i'd take this airline again since i have no plans on going to Istanbul again. Emirates is definitely better if you want to go from US to DXB,

So boarding is a little slow when you fly 787 but on the 777 the business class had its own entrance. The entertainment can be a little bit more up to date Other than that it was a great experience food and service was great

I paid $150 to upgrade to this seat. My exit row seat had ample leg room BUT the collapsable table was broken so my food tray and drinks slid over to my lap, the screen malfunctioned.

it was a terrible experience. after 4 hours at the gate the flight was cancelled. the airline offered to rebook the flight for 26 hours later. Our team was travelling for an international competition. They missed the competition because the airline delayed them for over 30 hours. We already left the airport but the next morning we received an email stating that we were rebooked for a flight which was another 24 hours later after the already rebooked flight. We bought a ticket on Kayak. The reservation was delivered with a logo Airfareassist. I used Kayak services for over 20 years and assumed that I was dealing with a legitimate organization. Once the flight was postponed for over 40 hours, I learned that Airfareassist is a 3rd party agency whom kayak routes business to without notifying me, the customer. While I was entitled for a full refund, which was confirmed by the airline, Airfareassist only offered a partial refund and kept the difference. Kayak has failed to do a due diligence on the 3rd parties they do business with. As a result I will never do business with kayak again and am filing a complaint with the BBB and the Secretary of Transportation. This is a pure fraud and its unacceptable.

Everything was so smooth. It could be just a better temperature in the plane; it was a little cold.

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

Overall a good experience as this leg I was in Business Class. The Lounge was amazing with a view of the planes. The flight attendant spoke way to quickly when giving the information for take off and landing and it would be of no use to a first time traveler. Overall a great airline to travel on.

Smooth on-time flight but NO AC in the middle of the cabin. Business Class and the rear of the cabin were too cold but mid-cabin was stuffy and hot with virtually no air coming out of the ducts. Made for a very long and uncomfortable flight.

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

The airplane has been replaced and late night layover have been extended from 3 to 7 and the only compensation was a $15 food voucher after most restaurants have been closed, not helping with children after a 18+ hour international flight

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

This flight with a lot empty place , and I have more room, feeling comfortable.

Flight was good, breakfast could be much better. We had come from a domestic flight on the same aircraft and the domestic flight was much better regarding service compared to this international flight.

I accidentally touched a cabin steward as she passed by and she reacted harshly yelling in a loud voice “don’t touch me”. It was embarrassing and uncalled for. I would characterize a few of the cabin crew as pretentious and aloof. Not at all what is expected. That was the first leg of our trip from Montreal to Munich. The second leg from Munich to Nice was more in keeping with the service I expected.

Not great - seats were very narrow and food was terrible.

The service and food was excellent. The remote control for entertainment did not function properly.

All was good, except my USB charging did not work, so my phone got drained and I could not charge it. Same happened to my neighbour.

A bit more space? Not practical, I know. I felt squished in but part of that could have been the man sitting next to me.

I purposely bought a seat upstairs and your airline moved it to a random aisle seat. The only good part about this being an older plane was that the seats weren’t so tight that I couldn’t relax at all. Still will never fly Lufthansa again.

The plane (Mitsubishi CRJ) felt old, creaking and not very new. The crew was okay. Hot water provision was broken so hot beverages could't be served.

Not bad. We had preboarding tickets but the preboarding was badly managed. We lined up behind all the parents with little kids etc and when we got to the front of the line the attendant deliberately turned away from us and ignored us until I asked to be allowed to go to the gate. She started telling us that we had to wait until I told her we had preboarding then she let us through.

The crew was fantastic. They were always there when we needed them. No wifi on an 11 hour flight was a bummer. The entertainment onboard was boring.

Everything well done and customer oriented There entertainment system is difficult to navigate

They delayed my flight from Toronto Pearson for one hour and Frankfurt to Abuja for 2HRS, So sad

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Need thicker and wider blankets. Food was below standard especially in the fist leg.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Decrepit planes, poor business class layout designed to maximize revenue, no decent movie selection.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

Both flights Heathrow and to SFO were delayed significantly. Walking up outside steps to aircraft with suitcase was a challenge and I am a healthy 63 year old!

They need to improve their service at the airport. Rather than a bus, they need to park the plane at a station like normal airlines to so passengers can just walk out of the plane into the airport and catch their next flight

Horrible experience. They broke the handle of my checked in suitcase and then refused pay for damages

The plane was known to be late in advance of takeoff. My guess is that it was known to be late at 11am or 5 hours before scheduled takeoff time. We were late to leave and with a wheelchair and the a cart, we only made it to gate. We raced! Inside plane, all was great

We spent twice as long on the runway waiting to take off as we did in the air.

Everything you need to know for your flight from Montreal to Sofia

Information on your arrival and departure airports