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Cheap flights from London Heathrow Airport to Sofia from C$ 143

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
5 May — 12 May1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Sofia are usually found in November or March, booked 83 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap 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 April 2025.

Round-trip from

C$ 262

One-way from

C$ 143

Popular in

December

Cheapest in

November

Average price

C$ 379

Good one-way deal

C$ 238 or less
Air Serbia
  • Air Serbia
  • 14/6-21/6
  • 2 total stops
  • 22h 40m total
  • London to Sofia
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British Airways
  • British Airways
  • 1/9
  • Nonstop
  • 3h 10m total
  • London to Sofia
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (C$ 20 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a one-way flight from London Heathrow to Sofia.
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Find flight deals from Heathrow to Sofia

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 April 2025.

Sat 14/67:55 p.m.LHR - SOF
1 stop17h 40mAir Serbia
Sat 21/64:05 p.m.SOF - LHR
1 stop5h 00mAir Serbia
Deal found 29/4C$ 262
Wed 30/43:25 p.m.LHR - SOF
Nonstop3h 15mBritish Airways
Wed 14/59:30 p.m.SOF - LHR
Nonstop3h 15mBritish Airways
Deal found 29/4C$ 266
Sat 17/59:00 a.m.LHR - SOF
1 stop12h 00mLufthansa
Fri 23/57:25 p.m.SOF - LHR
1 stop5h 15mLufthansa
Deal found 29/4C$ 288
Sat 4/1010:25 a.m.LHR - SOF
1 stop5h 45mMultiple Airlines
Wed 8/107:25 p.m.SOF - LHR
1 stop5h 15mMultiple Airlines
Deal found 29/4C$ 300
Mon 29/98:05 p.m.LHR - SOF
1 stop14h 25mSWISS
Tue 14/101:15 p.m.SOF - LHR
1 stop6h 35mSWISS
Deal found 29/4C$ 306
Thu 18/910:25 a.m.LHR - SOF
1 stop5h 45mAustrian Airlines
Thu 2/106:55 p.m.SOF - LHR
1 stop4h 45mAustrian Airlines
Deal found 29/4C$ 310
Sat 6/98:55 a.m.LHR - SOF
Nonstop3h 10mBulgaria Air
Sun 21/96:25 a.m.SOF - LHR
Nonstop3h 40mBulgaria Air
Deal found 29/4C$ 410
Fri 19/98:55 p.m.LHR - SOF
1 stop15h 05mKLM
Mon 29/912:55 p.m.SOF - LHR
2 stops20h 45mKLM
Deal found 29/4C$ 498

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 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Sofia that are best for you.

Fly from

Heathrow

Fly to

Sofia

Route

Depart

Return

Price

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 14/6

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

1 stop17h 40m

Sofia

Sat 21/6

4:05 p.m.-7:05 p.m.

1 stop5h 00m

C$ 262

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 14/5

3:25 p.m.-8:40 p.m.

Nonstop3h 15m

Sofia

Mon 19/5

8:00 p.m.-9:20 p.m.

Nonstop3h 20m

C$ 274

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 17/5

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

1 stop12h 00m

Sofia

Fri 23/5

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

1 stop5h 15m

C$ 288

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 4/10

10:25 a.m.-6:10 p.m.

1 stop5h 45m

Sofia

Wed 8/10

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

1 stop5h 15m

C$ 300

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 29/9

8:05 p.m.-12:30 p.m.

1 stop14h 25m

Sofia

Tue 14/10

1:15 p.m.-5:50 p.m.

1 stop6h 35m

C$ 306

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 18/9

10:25 a.m.-6:10 p.m.

1 stop5h 45m

Sofia

Mon 29/9

6:55 p.m.-9:40 p.m.

1 stop4h 45m

C$ 310

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 6/9

8:55 a.m.-2:05 p.m.

Nonstop3h 10m

Sofia

Sun 21/9

6:25 a.m.-8:05 a.m.

Nonstop3h 40m

C$ 410

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 19/9

8:55 p.m.-2:00 p.m.

1 stop15h 05m

Sofia

Mon 29/9

12:55 p.m.-7:40 a.m.

2 stops20h 45m

C$ 498

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 1/9

2:00 p.m.-7:10 p.m.

Nonstop3h 10m

C$ 143

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 9/8

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

1 stop17h 40m

C$ 151

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 17 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Sofia. Price data was last updated on 25 April 2025.

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 83 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 813). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,237). 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 April 2025.

It’s typically best to fly out from London Heathrow Airport to Sofia at noon. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 30.0 - 70.0 mm per month. June is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Sofia when rainfall is around 30.0 mm.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 30 April 2025.
To help decide which airline to fly from London to Sofia, see what other customers have to say about Aegean Airlines, KLM and Austrian Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very good
739 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,334 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.6
Good
780 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,588 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Lufthansa
6.7
Okay
7,044 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Crew

8.6

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Food

7.3

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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.

  • What are the cheapest airlines flying from London Heathrow Airport to Sofia round-trip?

    Flying on Air Serbia is currently your cheapest option to Sofia, with prices starting at C$ 262. Additional round-trip tickets that might be worth considering are offered by British Airways and Lufthansa, with the lowest prices starting at C$ 274 and C$ 288, respectively. Users have found that Air Serbia is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Sofia one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at C$ 143. Air Serbia flights start at C$ 151 while deals on Aegean Airlines start at C$ 220 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Sofia?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Sofia consider choosing Bulgaria Air (85%), American Airlines (81%) or British Airways (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London Heathrow Airport to Sofia?

    While on average a flight from London Heathrow Airport to Sofia is generally C$ 238, our data shows the cheapest flight currently is C$ 238. When looking at the most popular route, (London Heathrow - Sofia), you can expect to pay C$ 400 for that flight.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 813). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,237). 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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