$440 Cheap Flights from Montreal (YUL) to Sofia (SOF)

View $440 flight on Wed, Aug 13, 2025Opens in a new window

Popular airlines from Montreal–Trudeau Intl. Airport (YUL) to Sofia Airport (SOF)

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Cheap Flights from Montreal to Sofia (YUL-SOF)

Prices were available within the past 7 days and start at $440 for one-way flights and $681 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Oct 1 - Sun, Oct 12
YUL
Montreal
SOF
Sofia
$681 Roundtrip, found 6 hours ago
$681
Roundtrip
found 6 hours ago
Select British Airways flight, departing Wed, Oct 1 from Montreal to Sofia, returning Sun, Oct 12, priced at $681 found 6 hours ago
British Airways
Wed, Oct 1 - Fri, Oct 17
YUL
Montreal
SOF
Sofia
$700 Roundtrip, found 6 hours ago
$700
Roundtrip
found 6 hours ago
Select British Airways flight, departing Wed, Oct 1 from Montreal to Sofia, returning Fri, Oct 17, priced at $700 found 6 hours ago
British Airways
Tue, Sep 23 - Sun, Oct 5
YUL
Montreal
SOF
Sofia
$709 Roundtrip, found 6 hours ago
$709
Roundtrip
found 6 hours ago
Select British Airways flight, departing Tue, Sep 23 from Montreal to Sofia, returning Sun, Oct 5, priced at $709 found 6 hours ago
British Airways
Tue, Sep 30 - Sun, Oct 12
YUL
Montreal
SOF
Sofia
$732 Roundtrip, found 6 hours ago
$732
Roundtrip
found 6 hours ago
Select British Airways flight, departing Tue, Sep 30 from Montreal to Sofia, returning Sun, Oct 12, priced at $732 found 6 hours ago
British Airways
Tue, Sep 30 - Fri, Oct 17
YUL
Montreal
SOF
Sofia
$750 Roundtrip, found 6 hours ago
$750
Roundtrip
found 6 hours ago
Select British Airways flight, departing Tue, Sep 30 from Montreal to Sofia, returning Fri, Oct 17, priced at $750 found 6 hours ago
British Airways
Sat, Sep 27 - Sun, Oct 12
YUL
Montreal
SOF
Sofia
$768 Roundtrip, found 6 hours ago
$768
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sat, Sep 27 from Montreal to Sofia, returning Sun, Oct 12, priced at $768 found 6 hours ago
American Airlines
Sat, Sep 27 - Sun, Oct 12
YUL
Montreal
SOF
Sofia
$874 Roundtrip, found 6 hours ago
$874
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Sep 27 from Montreal to Sofia, returning Sun, Oct 12, priced at $874 found 6 hours ago
Swiss International Air Lines
Wed, Sep 3 - Mon, Sep 22
YUL
Montreal
SOF
Sofia
$958 Roundtrip, found 8 hours ago
$958
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Wed, Sep 3 from Montreal to Sofia, returning Mon, Sep 22, priced at $958 found 8 hours ago
Lufthansa
Wed, Sep 3 - Wed, Sep 17
YUL
Montreal
SOF
Sofia
$964 Roundtrip, found 8 hours ago
$964
Roundtrip
found 8 hours ago
Select Lufthansa flight, departing Wed, Sep 3 from Montreal to Sofia, returning Wed, Sep 17, priced at $964 found 8 hours ago
Austrian Airlines
Wed, Sep 3 - Wed, Sep 17
YUL
Montreal
SOF
Sofia
$970 Roundtrip, found 8 hours ago
$970
Roundtrip
found 8 hours ago
Select Austrian Airlines flight, departing Wed, Sep 3 from Montreal to Sofia, returning Wed, Sep 17, priced at $970 found 8 hours ago

Find the cheapest month to fly from Montreal (YUL) to Sofia (SOF)

November is typically the cheapest month to fly

From $692 - $1,352 per traveler.

Graph displaying average flight prices per month

Alternative airports near Sofia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $1,036
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $1,036
Flights from Montreal (YUL) to Sofia (SOF)
Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
Sofia
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Emirates, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$680
Distance
4506 mi

Montreal to Sofia Flights

The cheapest times to fly from Montreal to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Montreal to Sofia are during the month of October. You can find some of the cheapest flights from Montreal to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Montreal to Sofia

Sunday is one of the best days to book for cheap flights from Montreal to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Montreal to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Montreal to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $440 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Montreal to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Montreal to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF) cost?
Discover the latest flight deals from YUL to SOF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from YUL to SOF?
The cheapest flights from YUL to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from YUL to SOF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from YUL to SOF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF)?
There are no daily direct flights departing from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from YUL to SOF?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF)?
To reach Sofia Airport (SOF) without delays, choose a flight that leaves from Pierre Elliott Trudeau Intl. Airport (YUL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF) last-minute?
Holding off until just before your departure to book your flight from YUL to SOF often results in higher prices. While you may find some last-minute offers, there's no guarantee. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book a YUL to SOF flight and hotel package?
Booking a YUL to SOF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Sofia Airport (SOF)?
Typically, you can cancel or reschedule your YUL to SOF flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need more details, go to our Customer Service portal.

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*Available to One Key members.