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Cheap flights from London Heathrow Airport to Sofia from C$ 139

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
30 Jul — 6 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Sofia

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Sofia
Explore the most affordable flight options available from Heathrow to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2026.

Mon 29/62:05 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Wed 8/79:25 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 26/6C$ 291
Mon 29/62:05 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Sun 5/79:05 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 26/6C$ 332
Wed 14/104:25 p.m.
LHR
-
SOF
1 stop4h 50m
Lufthansa
Tue 20/107:25 p.m.
SOF
-
LHR
1 stop5h 15m
Lufthansa
Deal found 30/6C$ 335
Tue 7/78:05 p.m.
LHR
-
SOF
1 stop12h 15m
SWISS
Tue 14/71:05 p.m.
SOF
-
LHR
1 stop5h 20m
SWISS
Deal found 30/6C$ 348
Tue 14/76:00 a.m.
LHR
-
SOF
1 stop10h 10m
Austrian Airlines
Tue 28/76:55 p.m.
SOF
-
LHR
1 stop15h 25m
Austrian Airlines
Deal found 27/6C$ 351
Mon 12/106:00 a.m.
LHR
-
SOF
1 stop10h 10m
Austrian Airlines
Wed 21/106:55 p.m.
SOF
-
LHR
1 stop4h 45m
Austrian Airlines
Deal found 30/6C$ 352
Tue 7/78:05 p.m.
LHR
-
SOF
1 stop12h 15m
SWISS
Mon 13/73:40 p.m.
SOF
-
LHR
1 stop18h 15m
SWISS
Deal found 28/6C$ 355
Tue 7/78:05 p.m.
LHR
-
SOF
1 stop12h 15m
SWISS
Thu 16/711:05 a.m.
SOF
-
LHR
1 stop7h 20m
SWISS
Deal found 30/6C$ 358
Wed 1/78:05 p.m.
LHR
-
SOF
1 stop12h 15m
SWISS
Mon 6/73:40 p.m.
SOF
-
LHR
1 stop5h 40m
SWISS
Deal found 26/6C$ 363
Thu 2/71:30 p.m.
LHR
-
SOF
1 stop7h 20m
Lufthansa
Tue 7/77:25 p.m.
SOF
-
LHR
1 stop5h 15m
Lufthansa
Deal found 26/6C$ 365
Tue 30/66:00 a.m.
LHR
-
SOF
1 stop10h 10m
Austrian Airlines
Wed 8/76:55 p.m.
SOF
-
LHR
1 stop4h 45m
Austrian Airlines
Deal found 26/6C$ 366

Find flight deals from Heathrow to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 30 June 2026.

Round-trip from

C$ 335

One-way from

C$ 139

Popular in

December

Cheapest in

January

Average price

C$ 331
Lufthansa
  • Lufthansa
  • 14/10-20/10
  • 2 total stops
  • 10h 05m total
  • London to Sofia
Search Deals
British Airways
  • British Airways
  • 4/12
  • Nonstop
  • 3h 15m total
  • London to Sofia
Search Deals
High demand for flights, 12% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow 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 30 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 10/7

8:10 a.m.-1:25 p.m.

Nonstop3h 15m

Sofia

Sun 12/7

9:05 p.m.-10:25 p.m.

Nonstop3h 20m

C$ 390

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 24/8

2:05 p.m.-7:20 p.m.

Nonstop3h 15m

Sofia

Wed 23/9

9:25 p.m.-10:45 p.m.

Nonstop3h 20m

C$ 407

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 25/9

8:10 a.m.-1:25 p.m.

Nonstop3h 15m

Sofia

Sun 4/10

9:05 p.m.-10:25 p.m.

Nonstop3h 20m

C$ 417

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 4/8

6:00 a.m.-6:10 p.m.

1 stop10h 10m

Sofia

Wed 2/9

6:55 p.m.-8:20 a.m.

1 stop15h 25m

C$ 425

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 31/10

6:40 p.m.-1:15 p.m.

2 stops16h 35m

Sofia

Wed 4/11

2:00 p.m.-8:05 a.m.

2 stops20h 05m

C$ 443

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 6/8

9:00 a.m.-6:40 p.m.

1 stop7h 40m

Sofia

Wed 2/9

7:25 p.m.-10:40 p.m.

1 stop5h 15m

C$ 457

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 25/9

8:05 p.m.-12:10 p.m.

2 stops14h 05m

Sofia

Tue 29/9

12:55 p.m.-5:50 p.m.

2 stops6h 55m

C$ 457

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 19/11

6:00 a.m.-6:20 p.m.

2 stops10h 20m

Sofia

Sun 22/11

2:00 p.m.-8:05 a.m.

2 stops20h 05m

C$ 466

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 11/9

8:10 a.m.-1:25 p.m.

Nonstop3h 15m

Sofia

Sun 13/9

9:05 p.m.-10:25 p.m.

Nonstop3h 20m

C$ 471

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 15/8

3:30 p.m.-10:30 p.m.

1 stop5h 00m

Sofia

Sun 23/8

7:25 p.m.-10:40 p.m.

1 stop5h 15m

C$ 473

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/6

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Heathrow 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 London Heathrow Airport to Sofia

How far ahead should I book a flight from London Heathrow Airport to Sofia?

The price you pay for your flight from London Heathrow Airport to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Sofia?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 248). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of C$ 537). 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.

What is the cheapest time of day to fly from LHR to SOF?

Find hourly flight availability from Heathrow to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Sofia as you normally would.

How much does it cost to fly round-trip from London Heathrow Airport to Sofia?

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 London Heathrow?

    Most people fly into Sofia (SOF) if they book a flight to Sofia from London Heathrow. On average, Sofia has 0 inbound flights from London Heathrow per day from 0 airlines. Sofia is conveniently located just 6.7 km from Sofia’s city centre.

  • How long is the flight from London Heathrow Airport to Sofia?

    British Airways can get you from London Heathrow Airport to Sofia in just under 3h 15m. Your travel time will be generally consistent. Airlines will cover a distance of 2039 km. All flights are typically direct.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Sofia?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 248). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of C$ 537). 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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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

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow 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 Heathrow 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 Heathrow to Sofia.

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

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

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

Yes! Start tracking prices for Heathrow to Sofia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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