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$80+ Cheap flights from Heathrow (LHR) to Sofia (SOF)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Sofia are usually found in January or November, booked 43 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap 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 July 10, 2026.

This British Airways deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:05 pm
LHR
-
SOF
Nonstop3h 15m
British Airways
Mon 11/235:15 pm
SOF
-
LHR
Nonstop3h 30m
British Airways
Deal found 7/6$184
This oojo deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:30 am
LHR
-
SOF
1 stop5h 20m
LOT
Wed 10/216:45 pm
SOF
-
LHR
1 stop16h 35m
LOT
Deal found 7/8$187
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am
LHR
-
SOF
1 stop5h 20m
LOT
Wed 10/216:45 pm
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 7/8$200
This oojo deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:20 am
LHR
-
SOF
1 stop5h 40m
LOT
Mon 10/126:45 pm
SOF
-
LHR
1 stop24h 25m
LOT
Deal found 7/9$202
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am
LHR
-
SOF
1 stop5h 20m
LOT
Tue 10/206:45 pm
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 7/8$207
This Trip.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:55 pm
LHR
-
SOF
Nonstop3h 15m
Multiple Airlines
Sat 10/105:00 am
SOF
-
LHR
1 stop16h 05m
Multiple Airlines
Deal found 7/7$209
This Air Serbia deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:20 pm
LHR
-
SOF
1 stop11h 40m
Air Serbia
Mon 12/75:00 am
SOF
-
LHR
1 stop9h 25m
Air Serbia
Deal found 7/8$213
This Air Serbia deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:30 pm
LHR
-
SOF
1 stop11h 30m
Air Serbia
Sat 10/105:00 am
SOF
-
LHR
1 stop16h 05m
Air Serbia
Deal found 7/8$214
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am
LHR
-
SOF
1 stop5h 20m
LOT
Thu 10/226:45 pm
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 7/8$215
This oojo deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:20 am
LHR
-
SOF
1 stop5h 40m
LOT
Sun 10/116:45 pm
SOF
-
LHR
1 stop16h 35m
LOT
Deal found 7/8$216

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 July 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$184
(British Airways)

One-way from

$80

Popular in

December

Cheapest in

January

Average price

$341

Good round-trip deal

$290 or less

Good one-way deal

$250 or less
Provider with most accurate pricing for London Heathrow-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Sofia flights.
Search Deals
From London Heathrow to Sofia
Search Deals
One-way flight from London Heathrow to Sofia
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT 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

 
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 2,558,603 searches. Data last updated July 10, 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 round-trip

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 12/3

1:20 pm-3:00 am

1 stop11h 40m

Sofia

Mon 12/7

5:00 am-12:25 pm

1 stop9h 25m

$213
Quickest round-trip

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 7/31

8:10 am-1:25 pm

Nonstop3h 15m

Sofia

Sun 8/2

9:05 pm-10:25 pm

Nonstop3h 20m

$313

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 11/11

6:00 am-6:20 pm

2 stops10h 20m

Sofia

Fri 11/13

2:00 pm-1:00 pm

2 stops25h 00m

$314

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 10/17

6:00 am-12:55 pm

1 stop4h 55m

Sofia

Tue 10/20

1:05 pm-9:30 pm

2 stops10h 25m

$321

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 10/1

6:00 am-6:40 pm

2 stops10h 40m

Sofia

Mon 10/5

3:40 pm-9:30 pm

2 stops7h 50m

$364

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 8/18

8:05 pm-10:20 am

1 stop12h 15m

Sofia

Fri 8/21

12:55 pm-9:45 pm

2 stops10h 50m

$372

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/27

8:05 pm-12:10 pm

2 stops14h 05m

Sofia

Sat 8/1

1:45 pm-5:50 pm

1 stop6h 05m

$385

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 8/12

5:15 pm-12:10 pm

2 stops16h 55m

Sofia

Tue 8/18

12:55 pm-9:45 pm

2 stops10h 50m

$387

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 8/11

6:40 pm-12:10 pm

2 stops15h 30m

Sofia

Tue 8/18

12:55 pm-9:45 pm

2 stops10h 50m

$387

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 7/26

8:05 pm-12:10 pm

2 stops14h 05m

Sofia

Mon 7/27

3:40 pm-9:45 pm

1 stop8h 05m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 22 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on London Heathrow Airport-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $175). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of $379). 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 July 10, 2026.

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.

How much does it cost to fly round-trip from London Heathrow Airport to Sofia?

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?

    For a flight from London Heathrow to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Sofia from London Heathrow on a regular basis.

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

    A quick flight from London Heathrow Airport to Sofia can take about 3h 15m. Air Serbia provides one of the quickest options available for as low as $313. Airlines will cover a distance of 1267 mi. This flight may include one or multiple stops.

  • 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 $97. 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 $276, our data indicates the cheapest price to be $124. The most popular route (London Heathrow - Sofia), is priced around $209.

  • 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 $175). Flying from London Heathrow Airport to Sofia in December is currently the most expensive (average of $379). 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.

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