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Cheap flights from London Heathrow Airport to Sofia from C$ 166

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 30 October 2025.

Sat 29/116:05 a.m.LHR - SOF
Nonstop3h 10mBritish Airways
Sat 6/1212:05 p.m.SOF - LHR
Nonstop3h 45mBritish Airways
Deal found 30/10C$ 191
Sat 29/116:05 a.m.LHR - SOF
Nonstop3h 10mBritish Airways
Wed 3/129:00 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 29/10C$ 201
Sun 7/127:50 a.m.LHR - SOF
Nonstop3h 10mBritish Airways
Wed 10/129:00 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 29/10C$ 229
Thu 20/116:35 a.m.LHR - SOF
1 stop4h 40mLufthansa
Sun 23/116:05 a.m.SOF - LHR
1 stop6h 20mLufthansa
Deal found 30/10C$ 282
Sat 6/126:35 a.m.LHR - SOF
1 stop4h 40mLufthansa
Wed 10/127:05 p.m.SOF - LHR
1 stop5h 50mLufthansa
Deal found 29/10C$ 283
Wed 10/128:45 a.m.LHR - SOF
1 stop7h 35mLufthansa
Sat 10/16:05 a.m.SOF - LHR
1 stop8h 55mLufthansa
Deal found 29/10C$ 285
Tue 30/126:35 a.m.LHR - SOF
1 stop4h 40mLufthansa
Tue 13/12:00 p.m.SOF - LHR
1 stop5h 05mLufthansa
Deal found 28/10C$ 286
Fri 7/116:35 a.m.LHR - SOF
1 stop4h 40mLufthansa
Tue 11/117:05 p.m.SOF - LHR
1 stop5h 50mLufthansa
Deal found 29/10C$ 292
Tue 16/127:40 a.m.LHR - SOF
1 stop8h 40mMultiple Airlines
Thu 25/126:45 p.m.SOF - LHR
1 stop4h 55mMultiple Airlines
Deal found 29/10C$ 293
Tue 16/128:45 a.m.LHR - SOF
1 stop7h 35mLufthansa
Wed 24/126:10 a.m.SOF - LHR
1 stop5h 35mLufthansa
Deal found 29/10C$ 295
Wed 19/112:55 p.m.LHR - SOF
Nonstop3h 15mBritish Airways
Sun 23/112:30 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 30/10C$ 307
Mon 10/111:50 p.m.LHR - SOF
1 stop6h 55mLufthansa
Fri 14/116:45 p.m.SOF - LHR
1 stop5h 35mLufthansa
Deal found 30/10C$ 311

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 October 2025.

Round-trip from

C$ 201

One-way from

C$ 166

Popular in

December

Cheapest in

November

Average price

C$ 381
British Airways
  • British Airways
  • 29/11-3/12
  • Nonstop
  • 6h 40m total
  • London to Sofia
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Air Serbia
  • Air Serbia
  • 12/11
  • 1 total stop
  • 11h 40m total
  • London to Sofia
Search Deals
High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (C$ 22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 30 October 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

Sun 7/12

7:50 a.m.-1:00 p.m.

Nonstop3h 10m

Sofia

Wed 10/12

9:00 p.m.-10:30 p.m.

Nonstop3h 30m

C$ 229

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 14/3

6:05 a.m.-11:15 a.m.

Nonstop3h 10m

Sofia

Sun 15/3

2:30 p.m.-4:00 p.m.

Nonstop3h 30m

C$ 267

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 29/11

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

1 stop4h 40m

Sofia

Mon 1/12

1:45 p.m.-5:05 p.m.

1 stop5h 20m

C$ 282

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 20/11

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

1 stop4h 40m

Sofia

Tue 25/11

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

1 stop5h 50m

C$ 282

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 2/12

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

1 stop4h 40m

Sofia

Sat 6/12

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

1 stop7h 35m

C$ 282

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 16/11

8:45 a.m.-6:20 p.m.

1 stop7h 35m

Sofia

Fri 21/11

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

1 stop7h 35m

C$ 282

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 26/11

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

1 stop4h 40m

Sofia

Sun 30/11

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

1 stop6h 20m

C$ 282

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 11/11

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

1 stop6h 55m

Sofia

Wed 12/11

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

1 stop6h 35m

C$ 283

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 6/12

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

1 stop4h 40m

Sofia

Sun 7/12

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

1 stop7h 35m

C$ 283

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 6/12

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

1 stop4h 40m

Sofia

Thu 11/12

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

1 stop7h 35m

C$ 283

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 21 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 24 October 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$ 77). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 311). 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 October 2025.

It’s typically best to fly out from London Heathrow Airport to Sofia in the evening. Doing so could potentially save you 70% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 10m. Your travel time can differ by up to 1h 30m. 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 Bulgaria Air (85%), American Airlines (70%) or British Airways (70%) 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$ 77). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 311). 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

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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

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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