YUL - SOF

$638 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 10/28. 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.

Recent round-trip flight deals from Montreal to Sofia

Tue, Oct 28 - Tue, Nov 4
Multiple Airlines Logo
2:30 pm - 10:00 pmYUL-SOF
25h 30m3 stops
Multiple Airlines Logo
4:45 pm - 7:40 pmSOF-YUL
33h 55m2 stops
$638Multiple Airlines
Find Deal
Mon, Oct 27 - Tue, Nov 4
Multiple Airlines Logo
9:15 pm - 12:05 amYUL-SOF
20h 50m2 stops
Multiple Airlines Logo
4:45 pm - 7:40 pmSOF-YUL
33h 55m2 stops
$643Multiple Airlines
Find Deal
Fri, Nov 21 - Mon, Nov 24
British Airways Logo
8:30 pm - 1:00 pmYUL-SOF
33h 30m1 stop
British Airways Logo
5:25 pm - 6:45 pmSOF-YUL
32h 20m1 stop
$777British Airways
Find Deal
Thu, Nov 20 - Mon, Nov 24
British Airways Logo
8:40 pm - 11:15 amYUL-SOF
31h 35m1 stop
British Airways Logo
5:25 pm - 6:45 pmSOF-YUL
32h 20m1 stop
$813British Airways
Find Deal
Wed, Nov 19 - Mon, Nov 24
SWISS Logo
4:45 pm - 3:15 pmYUL-SOF
15h 30m1 stop
SWISS Logo
3:00 pm - 3:10 pmSOF-YUL
31h 10m1 stop
$1,030SWISS
Find Deal
Fri, Nov 21 - Tue, Nov 25
Turkish Airlines Logo
7:45 pm - 8:45 amYUL-SOF
30h 00m1 stop
Turkish Airlines Logo
4:00 pm - 5:50 pmSOF-YUL
32h 50m1 stop
$1,031Turkish Airlines
Find Deal
Mon, Oct 27 - Tue, Nov 4
Lufthansa Logo
9:10 pm - 6:20 pmYUL-SOF
15h 10m1 stop
Lufthansa Logo
7:05 pm - 6:20 pmSOF-YUL
30h 15m1 stop
$1,046Lufthansa
Find Deal
Wed, Nov 19 - Sun, Nov 23
SWISS Logo
5:10 pm - 3:15 pmYUL-SOF
15h 05m2 stops
SWISS Logo
11:00 am - 7:22 pmSOF-YUL
39h 22m3 stops
$1,064SWISS
Find Deal
Sun, Jan 25 - Sun, Feb 1
Lufthansa Logo
5:55 pm - 1:35 pmYUL-SOF
12h 40m1 stop
Lufthansa Logo
7:05 pm - 6:20 pmSOF-YUL
30h 15m1 stop
$1,066Lufthansa
Find Deal
Fri, Nov 21 - Sun, Nov 23
Turkish Airlines Logo
7:45 pm - 8:50 pmYUL-SOF
18h 05m1 stop
Turkish Airlines Logo
9:35 am - 5:50 pmSOF-YUL
15h 15m1 stop
$1,074Turkish Airlines
Find Deal

Everything you should know

Top airlines
British Airways
Cheapest • from $777 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 14% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$638
Overall average: $977
Multiple Airlines
Tue 10/28Tue 11/4
YUL - SOF • 3 stops
Cheapest one-way
Multiple Airlines
Wed 10/8
YUL - SOF • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sofia!
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 February, where tickets cost $920 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $1,477 and $1,102 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 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$638
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly with an average 2% 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 $638 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?

    Star Alliance 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 airline 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.
7.1
Air CanadaOverall score based on 10255 reviews
6.3Food
6.8Entertainment
7.3Boarding
7.8Crew
7.1Comfort
Airline reviews

The service to/from the airport/plane (wheelchair assistance for my mother in law) was exceptional. The staff was super friendly and courteous. The staff on the plane was also very nice. The food quality could have been better (mashed chicken sandwich).

8.0 ExcellentNicholas, Sep 2025YUL - ATH
Read more Air Canada reviews

The service to/from the airport/plane (wheelchair assistance for my mother in law) was exceptional. The staff was super friendly and courteous. The staff on the plane was also very nice. The food quality could have been better (mashed chicken sandwich).

The flight was great. I like it when airline capitalism give you information. For someone with flight jitters it really helps. And this captain was very cheery and reassuring. I had trouble understanding the head flight attendant because she spoke very fast. But overall staff were very helpful and kind.

1 hour late No hot drinks No restroom in the back of the plane

I did the posting for 45 years. I just retired. I’m the only seat in the plane but didn’t have any phone. It has to be mine so imagine seeing 13 hours on the flat seat with a belt that didn’t close all the rest was OK.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

They went on strike before time and screwed us big time. Which is not fair. We respect their planned strike but why they went on strike ahead of time ??? Poor garbage management

Premium Economy is best if you can't get upgraded to Business.. Not as good to sleep for red-eye flights, but does the job. More space for your legs and arms.. The food is also better and the service is almost like business.

Awful. As we were boarding we were told the flight was cancelled. Then had to stand in a queue for 3 hours to talk to someone at the kiosk of Air Canada. They were not helpful at all. No empathy. My issue is not with them striking but the total disregard for the chaos and distress late notice caused. No thought on the impact this has caused.

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

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

Information on your arrival and departure airports

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