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Cheap flights from Montreal to Sofia from C$ 421

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SOF
8 Sep — 15 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Sofia

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Sofia
Explore the most affordable flight options available from Montreal to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 August 2026.

Sat 26/910:00 p.m. -
1 stop15h 10m
Fri 9/102:15 p.m. -
2 stops50h 37m
Deal found 5/8C$ 1,072
Sat 19/99:30 p.m. -
2 stops35h 00m
Mon 5/104:00 p.m. -
2 stops29h 00m
Deal found 7/8C$ 1,073
Fri 18/97:00 p.m. -
2 stops23h 35m
Fri 25/95:00 a.m. -
3 stops26h 37m
Deal found 4/8C$ 1,076
Wed 7/1010:00 p.m. -
1 stop32h 25m
Wed 28/109:05 p.m. -
1 stop29h 10m
Deal found 8/8C$ 1,079
Mon 21/911:50 p.m. -
2 stops29h 35m
Fri 2/107:35 a.m. -
1 stop20h 25m
Deal found 5/8C$ 1,080
Fri 4/97:00 p.m. -
2 stops23h 35m
Sun 20/96:55 p.m. -
2 stops33h 05m
Deal found 7/8C$ 1,083
Sat 26/129:05 p.m. -
1 stop14h 30m
Mon 11/15:15 p.m. -
1 stop33h 00m
Deal found 4/8C$ 1,084
Wed 12/811:00 p.m. -
1 stop31h 40m
Tue 1/94:00 p.m. -
2 stops26h 25m
Deal found 7/8C$ 1,086
Fri 25/911:40 p.m. -
1 stop18h 15m
Sun 11/105:05 p.m. -
1 stop25h 10m
Deal found 5/8C$ 1,090
Mon 21/910:45 p.m. -
3 stops18h 10m
Mon 5/105:00 a.m. -
3 stops23h 10m
Deal found 4/8C$ 1,091

Find flight deals from Montreal to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 9 August 2026.

Round-trip from

C$ 1,072

One-way from

C$ 421

Popular in

April

Cheapest in

March

Average price

C$ 1,590
British Airways
  • British Airways
  • 26/9-9/10
  • 3 total stops
  • 65h 47m total
  • Montreal to Sofia
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 31h 45m total
  • Montreal to Sofia
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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 629,999 searches. Data last updated 9 August 2026.
Use the filters below to find and compare flights from Montreal to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

10:30 a.m.-8:10 p.m.

2 stops26h 40m

Sofia

Mon 5/10

8:10 p.m.-9:52 a.m.

2 stops44h 42m

C$ 1,106
Quickest round-trip

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 7/10

11:40 p.m.-7:05 p.m.

1 stop12h 25m

Sofia

Wed 28/10

6:30 a.m.-8:55 p.m.

2 stops20h 25m

C$ 1,205

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 20/10

5:00 p.m.-8:30 p.m.

2 stops20h 30m

Sofia

Wed 18/11

9:05 p.m.-7:15 p.m.

1 stop29h 10m

C$ 1,242

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 7/10

10:00 p.m.-1:25 p.m.

1 stop32h 25m

Sofia

Wed 28/10

9:05 p.m.-12:35 a.m.

2 stops33h 30m

C$ 1,242

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

10:00 p.m.-8:30 p.m.

1 stop15h 30m

Sofia

Wed 23/9

9:25 p.m.-8:15 p.m.

1 stop29h 50m

C$ 1,246

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

10:00 p.m.-1:25 p.m.

1 stop32h 25m

Sofia

Wed 23/9

9:25 p.m.-8:15 p.m.

1 stop29h 50m

C$ 1,246

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Sun 27/9

10:30 a.m.-7:20 p.m.

2 stops25h 50m

Sofia

Mon 12/10

8:10 p.m.-9:52 a.m.

2 stops44h 42m

C$ 1,256
Cheapest one-way

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

11:00 p.m.-9:45 a.m.

1 stop27h 45m

C$ 426

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

5:00 p.m.-1:15 p.m.

3 stops37h 15m

C$ 481

MontrealSofia

YUL Montreal Pierre Elliott Trudeau Intl - SOF Sofia

YULSOF

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

11:40 p.m.-1:25 a.m.

1 stop18h 45m

C$ 506

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Montreal to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Montreal 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 to Sofia

What is the cheapest month to book a flight from Montreal to Sofia?

Currently, March is the cheapest month in which you can book a flight from Montreal to Sofia (average of C$ 1,262). Flying from Montreal to Sofia in July is currently the most expensive (average of C$ 1,688). 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.

How much does it cost to fly round-trip from Montreal to Sofia?

Airfare is below average for this route at the moment.
Montreal to Sofia flights typically cost between C$ 1,336 and C$ 1,743 in September.
The cheapest round-trip price found within the last 5 days was C$ 1,072 on British Airways (26 Sep-9 Oct).

What’s the top layover airport for flights from Montreal to Sofia?

Share of one-stop round-trip flights from Montreal to Sofia chosen by Cheapflights users in the past 12 months, using the same layover each way.

Istanbul (IST) – chosen by Cheapflights users on 33% of one-stop itineraries from Montreal to Sofia on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Sofia?

Average round-trip fare for 1-stop flights from Montreal to Sofia, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of C$ 1,364.

What’s the fastest layover option from Montreal to Sofia?

Shortest average travel time for 1-stop one-way flights from Montreal to Sofia, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Vienna (VIE) have the shortest average one-way travel time for 1-stop routes: 11h 21m.

Which airport typically offers the quickest layover for flights from Montreal to Sofia?

Average layover duration for 1-stop one-way flights from Montreal to Sofia, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 2h 03m.

How far ahead should I book a flight from Montreal to Sofia?

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 9 August 2026.
Read through reviews of airlines operating flights from Montreal to Sofia, such as Austrian Airlines,Turkish Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Austrian Airlines
7.6
Good
950 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Turkish Airlines
7.4
Good
4,475 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Air Canada
7.1
Good
11,455 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Lufthansa
6.8
Okay
8,177 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
British Airways
6.7
Okay
8,153 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Entertainment

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.

Related info for your journey

Find useful and relevant information for your journey from Montreal 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?

    Sofia (SOF), located 6.7 km from the city centre, is the airport you fly into when you book flights from Montreal to Sofia. 5 airlines have flights to Sofia from Montreal on a regular basis. Booking flights from Montreal to Sofia should not be difficult; the airport handles an average of 0 inbound flights from Montreal per day.

  • How long is the flight from Montreal to Sofia?

    British Airways can get you from Montreal to Sofia in just under 26h 40m. Your travel time can differ by up to . There are 7247 km between Montreal and Sofia.

  • What are the cheapest airlines flying from Montreal to Sofia round-trip?

    Our cheapest airline available from Montreal to Sofia is British Airways. Our recent data shows that you can find tickets from as low as C$ 953 on this airline. Additional options worth looking into are Air Canada and Austrian Airlines, starting at C$ 988 and C$ 1,054 round-trip. British Airways is currently priced 36% below the average price you’ll pay for this route.

  • Can I find deals for flights from Montreal to Sofia that include hotel bookings?

    Yes. In addition to deals on Montreal to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Sofia?

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

  • Can I find deals for business class flights from Montreal to Sofia?

    Yes. Cheapflights offers flight deals from Montreal 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 to Sofia?

    Currently, March is the cheapest month in which you can book a flight from Montreal to Sofia (average of C$ 1,262). Flying from Montreal to Sofia in July is currently the most expensive (average of C$ 1,688). 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

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Alternative routes for Montreal to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Sofia flights
Ottawa to Sofia flights
Québec City to Sofia flights

Top 5 airlines flying from Montreal to Sofia

Discover the top 5 airlines that operate flights from Montreal 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 629,999 searches. Data last updated 9 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 953AverageC$ 1,247FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 988AverageC$ 1,595FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Austrian AirlinesCheapestC$ 1,054AverageC$ 1,781FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapestC$ 1,061AverageC$ 1,531FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Turkish AirlinesCheapestC$ 1,079AverageC$ 1,522FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to Sofia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Sofia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Sofia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to Sofia.

Can Cheapflights find flights from Montreal to Sofia with no change fees?

Yes! Cheapflights helps users easily find flights from Montreal to Sofia with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Sofia become cheaper?

Of course! You can now track prices for flights from Montreal to Sofia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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