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$689+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SOF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Sofia are usually found in March or January, booked 42 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Pierre Elliott Trudeau Intl to Sofia

Cheapest flights from Pierre Elliott Trudeau Intl to Sofia
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:40 pmYUL - SOF
1 stop14h 30mMultiple Airlines
Sat 1/317:45 pmSOF - YUL
1 stop30h 55mMultiple Airlines
Deal found 12/10$689
This British Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:30 pmYUL - SOF
1 stop33h 30mBritish Airways
Mon 12/155:25 pmSOF - YUL
1 stop32h 20mBritish Airways
Deal found 12/11$1,315
This British Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:30 pmYUL - SOF
1 stop33h 30mBritish Airways
Sat 12/2012:05 pmSOF - YUL
1 stop13h 40mBritish Airways
Deal found 12/11$1,322
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:15 amYUL - SOF
2 stops30h 30mUnited Airlines
Sun 12/142:00 pmSOF - YUL
2 stops53h 02mUnited Airlines
Deal found 12/11$1,605
This SWISS deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:00 pmYUL - SOF
2 stops55h 15mSWISS
Tue 12/162:00 pmSOF - YUL
2 stops32h 10mSWISS
Deal found 12/11$1,630
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:45 pmYUL - SOF
2 stops36h 05mUnited Airlines
Mon 12/157:55 amSOF - YUL
2 stops20h 22mUnited Airlines
Deal found 12/11$1,647
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:45 pmYUL - SOF
2 stops36h 05mUnited Airlines
Sun 12/142:00 pmSOF - YUL
2 stops55h 32mUnited Airlines
Deal found 12/11$1,657
This SWISS deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:45 pmYUL - SOF
2 stops13h 30mSWISS
Tue 12/162:00 pmSOF - YUL
3 stops56h 23mSWISS
Deal found 12/11$1,687
This SWISS deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:35 pmYUL - SOF
2 stops56h 40mSWISS
Thu 12/184:00 pmSOF - YUL
2 stops31h 00mSWISS
Deal found 12/11$1,730

Find flight deals from Pierre Elliott Trudeau Intl to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$689
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,163
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Sofia flights.
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From Montreal Pierre Elliott Trudeau Intl to Sofia
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Sofia that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Sofia

Route

Depart

Return

Price

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 12/31

9:40 pm-7:10 pm

1 stop14h 30m

Sofia

Sat 1/31

7:45 pm-7:40 pm

1 stop30h 55m

$689

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Thu 1/29

8:40 pm-11:15 am

1 stop31h 35m

Sofia

Mon 2/2

5:25 pm-6:45 pm

1 stop32h 20m

$745

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 6/3

10:00 pm-1:30 pm

1 stop32h 30m

Sofia

Wed 9/23

9:30 pm-8:15 pm

1 stop29h 45m

$828

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

8:55 am-7:00 pm

3 stops27h 05m

Sofia

Sun 3/1

6:55 am-7:40 pm

2 stops19h 45m

$864

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

5:10 pm-10:15 am

2 stops34h 05m

Sofia

Sun 3/1

11:00 am-1:45 pm

2 stops33h 45m

$924

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Sat 1/10

7:00 pm-11:50 am

2 stops33h 50m

Sofia

Sat 1/17

7:55 am-3:16 pm

2 stops38h 21m

$958

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Pierre Elliott Trudeau Intl to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to Sofia in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Sofia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Sofia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Sofia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia

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

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Sofia. Price data was last updated on December 5, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia?

Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia (average of $677). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Sofia in December is currently the most expensive (average of $999). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,516 reviews

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,516 reviews
Air Canada
7.1
Good
10,516 reviews

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Montreal Pierre Elliott Trudeau Intl?

    If you book a flight to Sofia from Montreal Pierre Elliott Trudeau Intl, you will be flying to Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia. There are 0 flights from Montreal Pierre Elliott Trudeau Intl to Sofia per day from 1 airline.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Sofia in 31h 35m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 4503 mi.

  • What is the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sofia round-trip?

    Air Canada, at $914, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to Sofia.. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sofia for 11% less than the average price by searching for this airline.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Sofia that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Sofia.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Sofia?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sofia (average of $677). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Sofia in December is currently the most expensive (average of $999). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Pierre Elliott Trudeau Intl to Sofia

Discover the top airline that operate flights from Pierre Elliott Trudeau Intl to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$914Average$1,101FlexibilityNo cancel feeOn-time67%

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