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Cheap flights from London Heathrow Airport to Sofia from C$ 148

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
12 Jun — 19 Jun1
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 13 May 2026.

Tue 2/64:25 p.m.
LHR
-
SOF
1 stop4h 50m
Lufthansa
Tue 16/67:25 p.m.
SOF
-
LHR
1 stop5h 15m
Lufthansa
Deal found 9/5C$ 326
Wed 7/103:10 p.m.
LHR
-
SOF
Nonstop3h 20m
British Airways
Sun 11/109:05 p.m.
SOF
-
LHR
Nonstop3h 20m
British Airways
Deal found 10/5C$ 327
Sun 29/111:20 p.m.
LHR
-
SOF
1 stop11h 45m
Air Serbia
Thu 3/124:05 p.m.
SOF
-
LHR
1 stop22h 15m
Air Serbia
Deal found 8/5C$ 329
Fri 23/108:10 a.m.
LHR
-
SOF
Nonstop3h 15m
British Airways
Sun 25/102:30 p.m.
SOF
-
LHR
Nonstop3h 30m
British Airways
Deal found 11/5C$ 334
Tue 16/66:00 a.m.
LHR
-
SOF
1 stop10h 10m
Austrian Airlines
Fri 19/66:55 p.m.
SOF
-
LHR
1 stop15h 25m
Austrian Airlines
Deal found 13/5C$ 341
Fri 19/66:00 a.m.
LHR
-
SOF
1 stop10h 10m
Austrian Airlines
Mon 22/66:55 p.m.
SOF
-
LHR
1 stop15h 25m
Austrian Airlines
Deal found 9/5C$ 342
Sun 31/54:25 p.m.
LHR
-
SOF
1 stop4h 50m
Lufthansa
Fri 5/66:10 a.m.
SOF
-
LHR
1 stop5h 45m
Lufthansa
Deal found 11/5C$ 344

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 13 May 2026.

Round-trip from

C$ 326

One-way from

C$ 148

Popular in

December

Cheapest in

January

Average price

C$ 410
British Airways
  • British Airways
  • 18/10-25/10
  • Nonstop
  • 6h 45m total
  • London to Sofia
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British Airways
  • British Airways
  • 7/11
  • Nonstop
  • 3h 10m total
  • London to Sofia
Search Deals
High demand for flights, 14% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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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 13 May 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

Fri 19/6

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

1 stop10h 10m

Sofia

Mon 22/6

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

1 stop15h 25m

C$ 359

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 8/6

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

1 stop10h 10m

Sofia

Mon 15/6

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

1 stop15h 25m

C$ 360

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 30/5

7:30 p.m.-11:40 a.m.

1 stop14h 10m

Sofia

Sat 6/6

12:25 p.m.-9:40 p.m.

1 stop11h 15m

C$ 385

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 8/6

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

1 stop10h 10m

Sofia

Sun 14/6

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

1 stop15h 25m

C$ 385

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 9/8

7:25 p.m.-3:30 p.m.

1 stop18h 05m

Sofia

Sat 15/8

4:00 p.m.-12:30 p.m.

1 stop22h 30m

C$ 423
Quickest round-trip

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$ 437

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 30/5

6:40 p.m.-12:10 p.m.

2 stops15h 30m

Sofia

Sat 6/6

1:45 p.m.-5:50 p.m.

1 stop6h 05m

C$ 466

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 29/5

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

2 stops14h 05m

Sofia

Mon 1/6

3:40 p.m.-9:30 p.m.

2 stops7h 50m

C$ 473

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 12/6

6:00 a.m.-3:05 p.m.

1 stop7h 05m

Sofia

Mon 15/6

3:40 p.m.-9:30 p.m.

2 stops7h 50m

C$ 490

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 30/6

8:05 p.m.-10:20 a.m.

1 stop12h 15m

Sofia

Fri 3/7

12:55 p.m.-9:45 p.m.

2 stops10h 50m

C$ 514

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/5

Showing 1-10 of 21 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 6 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$ 240). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of C$ 521). 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 13 May 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?

    Austrian Airlines, British Airways, and Air Serbia can get you from London Heathrow Airport to Sofia in just under 3h 15m. Your travel time can differ by up to 14h 50m. 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 240). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of C$ 521). 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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Sofia car rentals
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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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