Find flights
Deals
When to book
FAQs

Cheap flights from London Heathrow Airport to Sofia from C$ 149

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
30 Apr — 7 May1
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 31 March 2026.

Wed 4/112:55 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Wed 11/119:00 p.m.
SOF
-
LHR
Nonstop3h 30m
British Airways
Deal found 31/3C$ 241
Wed 22/43:10 p.m.
LHR
-
SOF
Nonstop3h 20m
British Airways
Mon 27/48:10 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 29/3C$ 255
Wed 15/43:10 p.m.
LHR
-
SOF
Nonstop3h 20m
British Airways
Wed 29/49:25 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 28/3C$ 264
Sun 19/42:55 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Mon 27/48:10 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 28/3C$ 273
Wed 4/112:55 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Sat 14/1112:05 p.m.
SOF
-
LHR
Nonstop3h 45m
British Airways
Deal found 31/3C$ 281
Sat 9/54:25 p.m.
LHR
-
SOF
1 stop4h 50m
Lufthansa
Tue 12/57:25 p.m.
SOF
-
LHR
1 stop5h 15m
Lufthansa
Deal found 27/3C$ 305
Sat 9/54:25 p.m.
LHR
-
SOF
1 stop4h 50m
Lufthansa
Tue 19/57:25 p.m.
SOF
-
LHR
1 stop5h 15m
Lufthansa
Deal found 26/3C$ 306
Wed 4/111:20 p.m.
LHR
-
SOF
1 stop11h 45m
Air Serbia
Thu 12/115:00 a.m.
SOF
-
LHR
1 stop9h 20m
Air Serbia
Deal found 31/3C$ 307
Mon 11/52:05 p.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Mon 18/58:10 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 27/3C$ 309

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 31 March 2026.

Round-trip from

C$ 255

One-way from

C$ 149

Popular in

December

Cheapest in

November

Average price

C$ 376
British Airways
  • British Airways
  • 22/4-27/4
  • Nonstop
  • 6h 40m total
  • London to Sofia
Search Deals
British Airways
  • British Airways
  • 26/8
  • Nonstop
  • 3h 20m total
  • London to Sofia
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 31 March 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

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 22/4

3:10 p.m.-8:30 p.m.

Nonstop3h 20m

Sofia

Mon 27/4

8:10 p.m.-9:30 p.m.

Nonstop3h 20m

C$ 255

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 15/4

3:10 p.m.-8:30 p.m.

Nonstop3h 20m

Sofia

Wed 29/4

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

Nonstop3h 20m

C$ 298

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 2/5

7:55 p.m.-3:35 p.m.

1 stop17h 40m

Sofia

Mon 4/5

4:05 p.m.-12:30 p.m.

1 stop22h 25m

C$ 310

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 13/5

1:30 p.m.-3:00 a.m.

1 stop11h 30m

Sofia

Tue 26/5

4:05 p.m.-12:30 p.m.

1 stop22h 25m

C$ 310

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 12/6

1:30 p.m.-3:35 p.m.

1 stop24h 05m

Sofia

Wed 17/6

4:05 p.m.-12:30 p.m.

1 stop22h 25m

C$ 366
Quickest round-trip

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 18/5

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

Nonstop3h 15m

Sofia

Wed 20/5

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

Nonstop3h 20m

C$ 371

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 29/5

1:30 p.m.-3:00 a.m.

1 stop11h 30m

Sofia

Fri 12/6

4:05 p.m.-12:30 p.m.

1 stop22h 25m

C$ 373

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 19/7

7:25 p.m.-3:00 a.m.

1 stop5h 35m

Sofia

Wed 22/7

4:05 p.m.-12:30 p.m.

1 stop22h 25m

C$ 403

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 8/5

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

Nonstop3h 15m

Sofia

Sun 10/5

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

Nonstop3h 20m

C$ 408

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 15/5

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

Nonstop3h 15m

Sofia

Wed 20/5

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

Nonstop3h 20m

C$ 440

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Sofia. Price data was last updated on 13 March 2026.

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 78 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 121). Flying from London Heathrow Airport to Sofia in August is currently the most expensive (average of C$ 334). 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 31 March 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 and Air Serbia can get you from London Heathrow Airport to Sofia in just under 3h 20m. Your travel time can differ by up to 8h 10m. Airlines will cover a distance of 2039 km. This flight may include one or multiple stops.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 121). Flying from London Heathrow Airport to Sofia in August is currently the most expensive (average of C$ 334). 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

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 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.

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.