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$111+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Sofia are usually found in November or March, booked 17 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

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 June 12, 2025.

Round-trip from

$201
(Mytrip)

One-way from

$111
(Air Serbia)

Popular in

December

Cheapest in

November

Average price

$267

Good round-trip deal

$371 or less

Good one-way deal

$169 or less
From London Heathrow to Sofia
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One-way flight from London Heathrow 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 ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Sofia.
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Price to beat on a one-way flight from London Heathrow to Sofia.
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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 June 12, 2025.

This Air Serbia deal was found by Cheapflights users on 6/11. 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.
Fri 12/121:20 pmLHR - SOF
1 stop24h 10mAir Serbia
Wed 12/174:00 pmSOF - LHR
1 stop22h 20mAir Serbia
Deal found 6/11$191
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/36:55 amLHR - SOF
1 stop14h 05mLufthansa
Thu 7/107:25 pmSOF - LHR
1 stop5h 15mLufthansa
Deal found 6/12$201
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/256:00 amLHR - SOF
1 stop10h 10mAustrian Airlines
Mon 7/78:00 amSOF - LHR
1 stop26h 20mAustrian Airlines
Deal found 6/11$223
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:05 pmLHR - SOF
1 stop12h 00mSWISS
Tue 7/11:15 pmSOF - LHR
1 stop8h 05mSWISS
Deal found 6/11$229
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:05 pmLHR - SOF
1 stop12h 00mMultiple Airlines
Sat 6/286:00 amSOF - LHR
1 stop14h 25mMultiple Airlines
Deal found 6/10$231
This SmartFares deal was found by Cheapflights users on 6/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/255:55 pmLHR - SOF
Nonstop3h 20mBulgaria Air
Sat 6/286:25 amSOF - LHR
Nonstop3h 40mBulgaria Air
Deal found 6/12$310
This British Airways deal was found by Cheapflights users on 6/12. 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 6/208:20 amLHR - SOF
Nonstop3h 10mBritish Airways
Mon 6/238:00 pmSOF - LHR
Nonstop3h 20mBritish Airways
Deal found 6/12$316
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Sun 6/226:30 amLHR - SOF
1 stop17h 30mLOT
Wed 7/26:40 pmSOF - LHR
1 stop5h 20mLOT
Deal found 6/11$326

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 June 12, 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

Thu 7/3

6:55 am-11:00 pm

1 stop14h 05m

Sofia

Thu 7/10

7:25 pm-10:40 pm

1 stop5h 15m

$201

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 6/25

6:00 am-6:10 pm

1 stop10h 10m

Sofia

Mon 7/7

8:00 am-8:20 am

1 stop26h 20m

$223

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 6/25

8:05 pm-10:05 am

1 stop12h 00m

Sofia

Tue 7/1

1:15 pm-7:20 pm

1 stop8h 05m

$229

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 6/25

8:05 pm-10:05 am

1 stop12h 00m

Sofia

Sat 6/28

6:00 am-6:25 pm

1 stop14h 25m

$230

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 6/25

5:55 pm-11:15 pm

Nonstop3h 20m

Sofia

Sat 6/28

6:25 am-8:05 am

Nonstop3h 40m

$310

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sun 6/22

6:30 am-2:00 am

1 stop17h 30m

Sofia

Wed 7/2

6:40 pm-10:00 pm

1 stop5h 20m

$326

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 8/2

7:55 pm-3:35 pm

1 stop17h 40m

Sofia

Fri 8/8

4:05 pm-12:30 pm

1 stop22h 25m

$334

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 10/11

7:55 pm-3:35 pm

1 stop17h 40m

$111

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 7/16

7:00 pm-11:10 am

1 stop14h 10m

$121

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 7/7

10:15 pm-2:30 pm

1 stop14h 15m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 17 results
1
2

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 June 9, 2025.

Booking 17 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of $632). Flying from London Heathrow Airport to Sofia in June is currently the most expensive (average of $1,203). 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 June 12, 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Sofia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 3% on airfare.

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 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
To help decide which airline to fly from London to Sofia, see what other customers have to say about Aegean Airlines, KLM and LOT. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.2
Very good
759 reviews
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,358 reviews
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,077 reviews
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.6
Good
802 reviews
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,623 reviews
Aegean Airlines
8.2
Very good
759 reviews

Overall

8.2

Entertainment

7.0

Crew

8.6

Food

7.4

Boarding

7.8

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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. 3 airlines have flights to Sofia from London Heathrow on a regular basis.

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

    Cheapflights users have booked flights from London Heathrow Airport to Sofia round-trip from $201. Other airlines that can offer you cheap pricing are Austrian Airlines, from $223, and SWISS, from $229. Users have found that Lufthansa is 24% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Air Serbia, with whom users have recently found tickets for as low as $111. However, be on the lookout for offers from Aegean Airlines and KLM, as they are both options that can get you from London Heathrow Airport to Sofia for a low price.

  • What are the most reliable airlines from London Heathrow Airport to Sofia?

    Consider Bulgaria Air (100%), American Airlines (75%) or British Airways (75%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Sofia.

  • 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 $342, our data indicates the cheapest price to be $88. The most popular route (London Heathrow - Sofia), is priced around $202.

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of $632). Flying from London Heathrow Airport to Sofia in June is currently the most expensive (average of $1,203). 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

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Top 3 airlines flying from Heathrow to Sofia

Discover the top 3 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$95Average$309FlexibilityNo cancel feeOn-time70%
Bulgaria AirCheapest$169Average$270FlexibilityNo cancel feeOn-time73%
LufthansaCheapest$190Average$252FlexibilityNo cancel feeOn-time76%

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