HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$586+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SOF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pierre Elliott Trudeau Intl to Sofia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 29, 2026.

This Connections by easyJet deal was found by Cheapflights users on 1/27. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:00 pm
YUL
-
SOF
1 stop13h 30m
Multiple Airlines
Thu 6/48:10 pm
SOF
-
YUL
1 stop31h 50m
Multiple Airlines
Deal found 1/27$586
This Connections by easyJet deal was found by Cheapflights users on 1/28. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:00 pm
YUL
-
SOF
1 stop27h 45m
Multiple Airlines
Thu 6/118:10 pm
SOF
-
YUL
1 stop31h 50m
Multiple Airlines
Deal found 1/28$614
This British Airways deal was found by Cheapflights users on 1/27. 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.
Tue 4/1410:00 pm
YUL
-
SOF
1 stop15h 30m
British Airways
Mon 4/278:10 pm
SOF
-
YUL
1 stop31h 05m
British Airways
Deal found 1/27$710
This British Airways deal was found by Cheapflights users on 1/28. 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.
Sun 3/159:50 pm
YUL
-
SOF
1 stop12h 30m
British Airways
Wed 4/19:25 pm
SOF
-
YUL
1 stop29h 50m
British Airways
Deal found 1/28$712
This British Airways deal was found by Cheapflights users on 1/28. 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.
Sun 10/410:00 pm
YUL
-
SOF
1 stop14h 20m
British Airways
Mon 10/198:10 pm
SOF
-
YUL
1 stop31h 05m
British Airways
Deal found 1/28$716
This British Airways deal was found by Cheapflights users on 1/27. 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.
Tue 4/2110:00 pm
YUL
-
SOF
1 stop15h 30m
British Airways
Wed 5/69:25 pm
SOF
-
YUL
1 stop29h 50m
British Airways
Deal found 1/27$737
This British Airways deal was found by Cheapflights users on 1/28. 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.
Tue 9/2210:00 pm
YUL
-
SOF
1 stop15h 30m
British Airways
Wed 10/79:25 pm
SOF
-
YUL
1 stop29h 50m
British Airways
Deal found 1/28$744
This British Airways deal was found by Cheapflights users on 1/27. 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.
Tue 3/3110:00 pm
YUL
-
SOF
1 stop15h 30m
British Airways
Wed 4/159:25 pm
SOF
-
YUL
1 stop29h 50m
British Airways
Deal found 1/27$747
This British Airways deal was found by Cheapflights users on 1/28. 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.
Sun 3/159:50 pm
YUL
-
SOF
1 stop12h 30m
British Airways
Mon 3/308:10 pm
SOF
-
YUL
1 stop31h 05m
British Airways
Deal found 1/28$748
This British Airways deal was found by Cheapflights users on 1/26. 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 2/68:30 pm
YUL
-
SOF
1 stop33h 30m
British Airways
Mon 2/165:25 pm
SOF
-
YUL
1 stop32h 20m
British Airways
Deal found 1/26$754
This British Airways deal was found by Cheapflights users on 1/28. 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.
Sun 3/159:50 pm
YUL
-
SOF
1 stop12h 30m
British Airways
Fri 4/32:15 pm
SOF
-
YUL
1 stop13h 00m
British Airways
Deal found 1/28$756

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$586
(Connections by easyJet)

Popular in

December

Cheapest in

April

Average price

$1,101
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Sofia flights.
Search Deals
From Montreal Pierre Elliott Trudeau Intl to Sofia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Mon 5/18

11:00 pm-7:30 pm

1 stop13h 30m

Sofia

Thu 6/4

8:10 pm-9:00 pm

1 stop31h 50m

$586

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Fri 5/29

11:00 pm-9:45 am

1 stop27h 45m

Sofia

Thu 6/11

8:10 pm-9:00 pm

1 stop31h 50m

$614

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

10:00 pm-8:30 pm

1 stop15h 30m

Sofia

Wed 4/29

9:25 pm-8:15 pm

1 stop29h 50m

$710

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

10:00 pm-8:30 pm

1 stop15h 30m

Sofia

Mon 4/27

8:10 pm-8:15 pm

1 stop31h 05m

$710

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 4/7

10:00 pm-8:30 pm

1 stop15h 30m

Sofia

Wed 4/22

9:25 pm-8:15 pm

1 stop29h 50m

$710

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 4/21

10:00 pm-8:30 pm

1 stop15h 30m

Sofia

Mon 5/4

8:10 pm-8:15 pm

1 stop31h 05m

$737

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 4/21

10:00 pm-8:30 pm

1 stop15h 30m

Sofia

Wed 5/6

9:25 pm-8:15 pm

1 stop29h 50m

$737

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Sun 3/22

9:50 pm-4:20 pm

1 stop12h 30m

Sofia

Mon 4/6

8:10 pm-8:15 pm

1 stop31h 05m

$747

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Sun 4/12

10:00 pm-7:20 pm

1 stop14h 20m

Sofia

Mon 4/27

8:10 pm-8:15 pm

1 stop31h 05m

$747

MontrealSofia

YUL - SOF

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

9:50 pm-8:10 pm

1 stop16h 20m

Sofia

Mon 3/30

8:10 pm-8:15 pm

1 stop31h 05m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Sofia flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

Booking 71 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 $1,028). 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 January 29, 2026.
Get a feel of what it's like to fly with Air Canada, Lufthansa, and British Airways 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
10,666 reviews

Food

6.3

Boarding

7.3

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,666 reviews
Air Canada
7.1
Good
10,666 reviews

Food

6.3

Boarding

7.3

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Lufthansa
6.8
Okay
7,752 reviews
Air Canada
7.1
Good
10,666 reviews

Food

6.3

Boarding

7.3

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
British Airways
6.7
Okay
7,705 reviews
Air Canada
7.1
Good
10,666 reviews

Food

6.3

Boarding

7.3

Comfort

7.1

Overall

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

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 3 different airlines.

  • 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 15h 30m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 4503 mi.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Sofia round-trip?

    British Airways, at $776, was found to be the cheapest airline from Montreal Pierre Elliott Trudeau Intl Airport to Sofia.Alternate airlines to your destination round-trip include Air Canada and Lufthansa. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sofia for 24% less than the average price by searching for these airlines.

  • 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 $1,028). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
Sofia car rentals
Sofia Airport car rentals
Plovdiv Airport car rentals

Top 3 airlines flying from Pierre Elliott Trudeau Intl to Sofia

Discover the top 3 airlines 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$776Average$934FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$914Average$1,101FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$992Average$1,190FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.