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Cheap flights from London Heathrow Airport to Sofia from C$ 146

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
26 Feb — 5 Mar1
1 adult

The best prices from London Heathrow to Sofia are usually found in November or January, 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 21 February 2025.

Round-trip from

C$ 249

One-way from

C$ 146

Popular in

December

Cheapest in

November

Average price

C$ 369
British Airways
  • British Airways
  • 15/3-18/3
  • Nonstop
  • 6h 40m total
  • London to Sofia
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Air Serbia
  • Air Serbia
  • 26/3
  • 1 total stop
  • 11h 40m total
  • London to Sofia
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High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (C$ 19 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 21 February 2025.

Sat 15/36:10 a.m.LHR - SOF
Nonstop3h 05mBritish Airways
Tue 18/36:05 p.m.SOF - LHR
Nonstop3h 35mBritish Airways
Deal found 20/2C$ 249
Tue 25/31:20 p.m.LHR - SOF
1 stop24h 10mAir Serbia
Tue 1/44:05 p.m.SOF - LHR
1 stop22h 25mAir Serbia
Deal found 19/2C$ 253
Mon 24/36:35 a.m.LHR - SOF
1 stop4h 25mLufthansa
Tue 1/47:25 p.m.SOF - LHR
1 stop5h 15mLufthansa
Deal found 19/2C$ 276
Thu 20/32:50 p.m.LHR - SOF
1 stop25h 10mAustrian Airlines
Sun 30/36:55 p.m.SOF - LHR
1 stop4h 45mAustrian Airlines
Deal found 19/2C$ 297
Sat 1/36:30 a.m.LHR - SOF
1 stop5h 20mLOT
Tue 18/36:35 p.m.SOF - LHR
1 stop17h 00mLOT
Deal found 20/2C$ 308
Fri 28/25:45 p.m.LHR - SOF
Nonstop3h 10mMultiple Airlines
Tue 18/34:00 p.m.SOF - LHR
1 stop22h 20mMultiple Airlines
Deal found 20/2C$ 311
Thu 24/48:40 a.m.LHR - SOF
2 stops25h 20mSWISS
Tue 29/41:15 p.m.SOF - LHR
1 stop8h 05mSWISS
Deal found 20/2C$ 344
Sun 13/48:55 a.m.LHR - SOF
Nonstop3h 10mBulgaria Air
Sat 19/46:25 a.m.SOF - LHR
Nonstop3h 40mBulgaria Air
Deal found 20/2C$ 413

Find flights from Heathrow to Sofia within your budget

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 21 February 2025.

Fly from

Heathrow

Fly to

Sofia

Route

Depart

Return

Price

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 15/3

6:10 a.m.-11:15 a.m.

Nonstop3h 05m

Sofia

Tue 18/3

6:05 p.m.-7:40 p.m.

Nonstop3h 35m

C$ 249

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 25/3

1:20 p.m.-3:30 p.m.

1 stop24h 10m

Sofia

Tue 1/4

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

1 stop22h 25m

C$ 253

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 24/3

6:35 a.m.-1:00 p.m.

1 stop4h 25m

Sofia

Tue 1/4

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

1 stop5h 15m

C$ 276

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 20/3

2:50 p.m.-6:00 p.m.

1 stop25h 10m

Sofia

Sun 30/3

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

1 stop4h 45m

C$ 297

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 24/4

8:40 a.m.-12:00 p.m.

2 stops25h 20m

Sofia

Tue 29/4

1:15 p.m.-7:20 p.m.

1 stop8h 05m

C$ 344

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 19/7

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

1 stop17h 40m

Sofia

Sun 20/7

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

Nonstop3h 15m

C$ 389

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 13/4

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

Nonstop3h 10m

Sofia

Sat 19/4

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

Nonstop3h 40m

C$ 413

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 15/4

3:25 p.m.-9:35 a.m.

2 stops16h 10m

Sofia

Sat 19/4

10:05 a.m.-6:35 p.m.

2 stops10h 30m

C$ 2,048

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/4

3:20 p.m.-6:40 p.m.

2 stops25h 20m

Sofia

Wed 16/4

6:00 a.m.-9:20 a.m.

2 stops29h 20m

C$ 25,146

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 26/3

1:20 p.m.-3:00 a.m.

1 stop11h 40m

C$ 146

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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.

Travel insights for flights from Heathrow to Sofia

Get recent, data-driven insights about flights from Heathrow to Sofia including ideal travel times, pricing trends, and more.

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 14 February 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$ 860). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,238). 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 21 February 2025.

It’s typically best to fly out from London Heathrow Airport to Sofia at noon. Doing so could potentially save you 24% 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 21 February 2025.
To help decide which airline to fly from London to Sofia, see what other customers have to say about KLM, Austrian Airlines and SWISS. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.6
Good
773 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,568 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,449 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,766 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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 1 airline. 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 British Airways is currently your cheapest option to Sofia, with prices starting at C$ 249. Additional round-trip tickets that might be worth considering are offered by Air Serbia and Lufthansa, with the lowest prices starting at C$ 253 and C$ 276, respectively. Users have found that British Airways is 32% 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 Air Serbia, which is currently one of the cheapest options available, starting at C$ 146. Bulgaria Air flights start at C$ 170 while deals on KLM start at C$ 179 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 American Airlines (88%), British Airways (88%) or Bulgaria Air (77%) as they are the most reliable in getting you off to your destination on time.

  • 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$ 860). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,238). 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

Top airline flying from Heathrow to Sofia

Discover the top airline that operate flights from Heathrow 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Bulgaria AirCheapestC$ 213AverageC$ 392FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights

Fly with Cheapflights

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

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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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