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Cheap flights from London Heathrow Airport to Sofia from C$ 125

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Sofia are usually found in November or January, booked 45 days in advance, depart on a Monday or Tuesday and return on a Monday

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 18 December 2025.

Wed 31/126:35 a.m.LHR - SOF
1 stop4h 40mMultiple Airlines
Thu 1/14:00 p.m.SOF - LHR
1 stop7h 40mMultiple Airlines
Deal found 16/12C$ 310
Thu 25/126:35 a.m.LHR - SOF
1 stop4h 40mMultiple Airlines
Fri 9/112:35 p.m.SOF - LHR
1 stop8h 05mMultiple Airlines
Deal found 15/12C$ 320
Wed 24/122:55 p.m.LHR - SOF
Nonstop3h 15mBritish Airways
Mon 29/125:25 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 17/12C$ 474
Wed 24/127:30 p.m.LHR - SOF
2 stops15h 45mLufthansa
Sat 10/12:00 p.m.SOF - LHR
1 stop5h 05mLufthansa
Deal found 16/12C$ 478
Mon 22/128:05 p.m.LHR - SOF
2 stops15h 10mSWISS
Thu 25/124:00 p.m.SOF - LHR
2 stops7h 25mSWISS
Deal found 17/12C$ 529
Mon 22/128:05 p.m.LHR - SOF
2 stops15h 10mSWISS
Sun 28/1211:00 a.m.SOF - LHR
1 stop7h 20mSWISS
Deal found 16/12C$ 530
Sun 21/128:05 p.m.LHR - SOF
2 stops14h 55mSWISS
Wed 21/12:00 p.m.SOF - LHR
2 stops25h 00mSWISS
Deal found 17/12C$ 554
Sun 28/128:05 p.m.LHR - SOF
2 stops14h 55mSWISS
Tue 30/122:00 p.m.SOF - LHR
2 stops20h 05mSWISS
Deal found 17/12C$ 569
Mon 22/128:05 p.m.LHR - SOF
2 stops15h 10mSWISS
Tue 30/122:00 p.m.SOF - LHR
2 stops20h 05mSWISS
Deal found 16/12C$ 602
Sun 21/128:05 p.m.LHR - SOF
2 stops14h 55mSWISS
Tue 23/122:00 p.m.SOF - LHR
2 stops25h 00mSWISS
Deal found 15/12C$ 606

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 18 December 2025.

Round-trip from

C$ 256

One-way from

C$ 136

Popular in

December

Cheapest in

November

Average price

C$ 511
British Airways
  • British Airways
  • 11/3-16/3
  • Nonstop
  • 6h 45m total
  • London to Sofia
Search Deals
British Airways
  • British Airways
  • 31/1
  • Nonstop
  • 3h 10m total
  • London to Sofia
Search Deals
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 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

Wed 11/3

2:55 p.m.-8:10 p.m.

Nonstop3h 15m

Sofia

Mon 16/3

5:25 p.m.-6:55 p.m.

Nonstop3h 30m

C$ 256

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 12/2

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Mon 16/3

7:05 p.m.-10:55 p.m.

1 stop5h 50m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 12/2

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Wed 18/3

6:05 a.m.-10:25 a.m.

1 stop6h 20m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 10/1

7:40 a.m.-6:20 p.m.

1 stop8h 40m

Sofia

Sun 18/1

2:00 p.m.-6:35 p.m.

1 stop6h 35m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 12/2

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Tue 17/3

2:00 p.m.-7:35 p.m.

1 stop7h 35m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 31/1

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Sun 1/2

7:05 p.m.-10:55 p.m.

1 stop5h 50m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 16/1

1:50 p.m.-10:45 p.m.

1 stop6h 55m

Sofia

Mon 19/1

7:05 p.m.-10:55 p.m.

1 stop5h 50m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 1/2

7:40 a.m.-6:20 p.m.

1 stop8h 40m

Sofia

Sun 8/2

2:00 p.m.-5:05 p.m.

1 stop5h 05m

C$ 285

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 12/1

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

1 stop24h 10m

Sofia

Sat 17/1

5:00 a.m.-12:20 p.m.

1 stop9h 20m

C$ 288

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 14/1

1:20 p.m.-3:05 a.m.

1 stop11h 45m

Sofia

Fri 16/1

4:05 p.m.-12:20 p.m.

1 stop22h 15m

C$ 288

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 22 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 12 December 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 45 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$ 74). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 313). 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 18 December 2025.

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.

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 Lufthansa can get you from London Heathrow Airport to Sofia in just under 3h 15m. Your travel time can differ by up to 1h 25m. Airlines will cover a distance of 2039 km. This flight may include one or multiple stops.

  • 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 British Airways (79%), American Airlines (75%) or Bulgaria Air (74%) 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 74). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 313). 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.
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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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