YUL - SOF

$672 Find Cheap Flights from Montreal to Sofia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Sofia departing on 10/20. 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

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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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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to Sofia

seg, out 20 - sáb, jan 17
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11:00 pm - 7:25 pmYUL-SOF
13h 25m1 stop
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7:55 pm - 8:00 pmSOF-YUL
31h 05m1 stop
dom, out 19 - seg, jan 19
British Airways Logo
10:00 pm - 7:10 pmYUL-SOF
14h 10m1 stop
British Airways Logo
5:25 pm - 6:45 pmSOF-YUL
32h 20m1 stop
$706British Airways
Find Deal
sáb, out 18 - dom, jan 18
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10:05 pm - 1:35 pmYUL-SOF
32h 30m1 stop
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1:35 pm - 12:10 pmSOF-YUL
29h 35m1 stop
dom, out 19 - sáb, jan 10
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11:00 pm - 11:55 pmYUL-SOF
17h 55m1 stop
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7:55 pm - 8:00 pmSOF-YUL
31h 05m1 stop
sáb, out 18 - seg, jan 19
British Airways Logo
10:05 pm - 8:20 pmYUL-SOF
15h 15m1 stop
British Airways Logo
5:25 pm - 6:45 pmSOF-YUL
32h 20m1 stop
$749British Airways
Find Deal
dom, out 19 - dom, jan 18
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11:00 pm - 11:55 pmYUL-SOF
17h 55m1 stop
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1:35 pm - 12:10 pmSOF-YUL
29h 35m1 stop
sáb, out 18 - sex, jan 16
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10:05 pm - 1:15 amYUL-SOF
20h 10m1 stop
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6:00 am - 8:00 pmSOF-YUL
21h 00m1 stop
dom, out 19 - sex, jan 16
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4:00 pm - 8:05 pmYUL-SOF
21h 05m2 stops
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6:00 am - 8:00 pmSOF-YUL
21h 00m1 stop
sáb, out 18 - seg, jan 19
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10:05 pm - 1:15 amYUL-SOF
20h 10m1 stop
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5:45 am - 8:15 pmSOF-YUL
21h 30m2 stops
sáb, out 18 - sáb, jan 17
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10:05 pm - 2:30 amYUL-SOF
21h 25m1 stop
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7:55 pm - 12:10 pmSOF-YUL
23h 15m1 stop
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’s the cheapest day of the week to fly from Montreal to Sofia?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sofia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sofia on a Tuesday and more expensive on a Saturday. On your return trip to Montreal, you should consider flying back on a Thursday, and avoid Fridays for better deals.

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 January, where tickets cost $931 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $1,392 and $1,217 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 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$672
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly with an average 1% increase in price.
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 $672 for a round-trip ticket.

  • Do I need a passport to fly between Montreal and Sofia?

    Yes

  • 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 is the only airline alliance operating flights between Montreal and Sofia.

  • 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 travelers 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. Booking your flights between Montreal and SOF 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 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 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.
7.6
Austrian AirlinesOverall score based on 829 reviews
8.1Crew
7.6Boarding
6.8Food
7.3Comfort
6.8Entertainment
Airline reviews

Despite the booked seats in front of the land we were moved to the back of the plane even first like 8 lines were totally without pasangers. When I tried to sit on empty seat flight attendant asked me to go to my dedicated seat in the fully crowded back of the plane. She was not able to explain why. Food was very poor on flight LAX - VIE.

4.0 OkayAnonymous, Aug 2025LAX - VIE
Read more Austrian Airlines reviews

Despite the booked seats in front of the land we were moved to the back of the plane even first like 8 lines were totally without pasangers. When I tried to sit on empty seat flight attendant asked me to go to my dedicated seat in the fully crowded back of the plane. She was not able to explain why. Food was very poor on flight LAX - VIE.

We had a wonderful experience overall. The only issue was check-in our luggage at the Split Airport counter. It was very confusing because we needed to pay for baggage.

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

Quick and organized boarding process, friendly staff but not as many snacks and drinks as the previous flight overnight

Landing was a little hard. Food was not great My prior review was for the flight to nyc too

Five star experience all around except for my seat, which was broken. It would only go down 70%.Of the way. It defeats the purpose of buying a business class ticket if you don’t actually get to lay flat..

I love this airline.God bless CAO and the whole staff of this company

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

Horrible, experience, 5 hours delay, they changed gates 3 times, the last one we had to wait for 1::30 hre for the door to open to get to that gate. 0 apologies from Air Canada, they don’t care at all about their passengers

I had a very disappointing experience with customer service. I was suffering from a severe viral infection that included a rash and persistent cough, leaving me unable to even sit upright. Given the circumstances, I requested travel credits from Canada Air, explaining the potential health risk to others onboard. However, the airline showed no concern for my condition and stated they were not in a position to make decisions based on health considerations. Despite my illness, I received no support or flexibility. Ultimately, I chose to forgo my flight due to their lack of responsiveness. It’s unfortunate that airlines like this operate without prioritizing passenger health and safety.

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

When I came in the front door in Montreal airport I didn't know where to go, first time traveling. Signs were not directing me.

Aircanada was not great. Didn't get anything to eat. No snacks. No entertainment. Horrible checking in.

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Took forever to depart parked on the runway for ever after three departure delays. Could have walked...

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