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Cheap flights from London Heathrow Airport to Sofia from £65

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Sofia are usually found in January or November, booked 66 days in advance, depart on a Monday or Wednesday and return on a Wednesday

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 23 July 2026.

Tue 13/1006:30
LHR
-
SOF
1 stop5h 20m
LOT
Wed 21/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 19/7£132
Tue 20/1010:20
LHR
-
SOF
1 stop5h 40m
LOT
Tue 27/1018:35
SOF
-
LHR
1 stop5h 25m
LOT
Deal found 22/7£132
Sat 28/1118:20
LHR
-
SOF
1 stop17h 30m
LOT
Sat 5/1218:35
SOF
-
LHR
1 stop17h 00m
LOT
Deal found 22/7£138
Tue 20/1006:30
LHR
-
SOF
1 stop9h 30m
LOT
Tue 3/1118:35
SOF
-
LHR
1 stop5h 25m
LOT
Deal found 20/7£139
Sat 26/906:30
LHR
-
SOF
1 stop5h 25m
LOT
Sat 3/1018:45
SOF
-
LHR
1 stop24h 25m
LOT
Deal found 23/7£142
Fri 13/1114:05
LHR
-
SOF
Nonstop3h 15m
British Airways
Mon 16/1117:15
SOF
-
LHR
Nonstop3h 30m
British Airways
Deal found 19/7£143
Fri 20/1114:05
LHR
-
SOF
Nonstop3h 15m
British Airways
Mon 23/1117:15
SOF
-
LHR
Nonstop3h 30m
British Airways
Deal found 21/7£144
Sat 24/1018:10
LHR
-
SOF
1 stop22h 40m
LOT
Sat 7/1118:35
SOF
-
LHR
1 stop17h 00m
LOT
Deal found 19/7£144
Mon 19/1018:10
LHR
-
SOF
1 stop21h 50m
LOT
Sat 24/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 20/7£145
Sat 3/1006:30
LHR
-
SOF
1 stop9h 30m
LOT
Sat 10/1018:45
SOF
-
LHR
1 stop16h 35m
LOT
Deal found 19/7£147
Sun 20/906:30
LHR
-
SOF
1 stop9h 30m
LOT
Thu 24/918:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 22/7£148
Wed 21/1018:10
LHR
-
SOF
1 stop17h 40m
LOT
Wed 4/1118:35
SOF
-
LHR
1 stop5h 25m
LOT
Deal found 22/7£149

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 23 July 2026.

Round-trip from

£131

One-way from

£65

Popular in

December

Cheapest in

January

Average price

£259

Good round-trip deal

£247 or less

Good one-way deal

£119 or less
LOT
  • LOT
  • 11/10-12/10
  • 2 total stops
  • 33h 55m total
  • London to Sofia
Search Deals
3/9
  • 3/9
  • 1 total stop
  • 20h 40m total
  • London to Sofia
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Sofia.
Search Deals
Price to beat on a one-way flight from London Heathrow to Sofia.
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 23 July 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 return flight
Fastest return journey

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 24/8

14:05-19:20

Nonstop3h 15m

Sofia

Wed 23/9

21:25-22:45

Nonstop3h 20m

£189

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/9

06:00-18:10

1 stop10h 10m

Sofia

Sun 27/9

18:55-08:20

1 stop15h 25m

£193

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/9

20:05-12:15

1 stop14h 10m

Sofia

Tue 15/9

13:05-21:30

2 stops10h 25m

£218

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 28/9

06:00-14:55

1 stop6h 55m

Sofia

Tue 29/9

13:05-21:30

2 stops10h 25m

£225

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/9

14:05-19:20

Nonstop3h 15m

Sofia

Mon 5/10

20:10-21:30

Nonstop3h 20m

£231

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 22/8

18:40-12:10

2 stops15h 30m

Sofia

Mon 24/8

15:40-19:20

1 stop5h 40m

£232

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/12

06:00-18:20

2 stops10h 20m

Sofia

Sun 13/12

14:00-21:40

2 stops9h 40m

£271

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 7/8

19:15-12:55

2 stops15h 40m

Sofia

Tue 11/8

13:05-17:50

1 stop6h 45m

£274

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 30/12

20:05-13:15

2 stops15h 10m

Sofia

Wed 6/1

14:00-08:05

2 stops20h 05m

£277

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 16/8

20:05-12:10

2 stops14h 05m

Sofia

Wed 19/8

11:05-19:20

1 stop10h 15m

£283

Flights are sorted by cheapest return flights first.

Deals found on 23/7

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 return 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 best time to book flights from London Heathrow Airport to Sofia is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 £131). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of £285). 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 23 July 2026.

When flying from London Heathrow Airport to Sofia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 14% versus a flight in the morning.

How much does it cost for a return flight from London Heathrow Airport to Sofia?

Airfare is below average for this route at the moment.

London Heathrow Airport to Sofia flights typically cost between £212 and £331 in October.
The cheapest return price found within the last 5 days was £131 on LOT (11 Oct–12 Oct).

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 23 July 2026.
See what other customers who have flown with Austrian Airlines,LOT, andLufthansa from London Heathrow Airport to Sofia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Austrian Airlines
7.6
Good
950 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
LOT
7.5
Good
1,211 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Lufthansa
6.8
Okay
8,159 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
British Airways
6.7
Okay
8,127 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.

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 5 airlines. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

  • How long is the flight from London Heathrow Airport to Sofia?

    Airlines like British Airways, Austrian Airlines, and SWISS fly from London Heathrow Airport to Sofia in about 3h 15m. The time it takes to get you to your destination can typically vary by up to 10h 55m. The distance between London Heathrow Airport and Sofia is about 1267 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Our cheapest airline available from London Heathrow Airport to Sofia is British Airways. Our recent data shows that you can find tickets from as low as £112 on this airline. Additional options worth looking into are LOT and Bulgaria Air, starting at £143 and £147 round-trip. You may be able to fly from London Heathrow Airport to Sofia for 45% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £70. However, be on the lookout for offers from Bulgaria Air and LOT, as they are both options that can get you from London Heathrow Airport to Sofia for a low price.

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

    Looking for the cheapest flight from London Heathrow Airport to Sofia? While on average our users pay £252, our data indicates the cheapest price to be £94. The most popular route (London Heathrow - Sofia), is priced around £130.

  • 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 holiday 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 £131). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of £285). 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

Travelling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Velingrad

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Alternative routes for Heathrow to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Stansted to Sofia flights
Luton to Sofia flights
Gatwick to Sofia flights
London City to Sofia flights
Southend to Sofia flights

Top 5 airlines flying from Heathrow to Sofia

Discover the top 5 airlines 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 858,174 searches. Data last updated 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£112Average£183FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LOTCheapest£143Average£216FlexibilityNo cancel feeOn-time81%
Search LOT flights
Bulgaria AirCheapest£147Average£251FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights
LufthansaCheapest£154Average£221FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£167Average£189FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sofia from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sofia?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Sofia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Sofia with no change fees?

Need flexible booking options for your flight to Sofia from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights 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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