LHR - SOF

£66 Find Cheap Flights from London Heathrow Airport to Sofia – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Sofia departing on 26/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£129
Typical prices: £128-£167
British Airways
Fri 13/11Mon 16/11
LHR - SOF • Direct
Cheapest one-way flight
£66
Typical prices: £118-£167
Multiple Airlines
Wed 26/8
LHR - SOF • 1 stop
Direct flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Bulgaria Air and British Airways. Average duration is 3h 12m
Direct flights
Direct flights
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Top airlines
Cheapest • from £129 (return)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
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Top stopover airports
Cheapest • Avg £148 (return)
Shortest trip • 6h 24m (one-way)
Insights
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Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
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When to travel
Cheapest • 36% price drop
Most popular
Good to know
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Booking Insights
Flight Deals

Cheap Flights from Heathrow to Sofia (LHR-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Sofia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Sofia

Fri, 13 Nov - Mon, 16 Nov
British Airways Logo
14:05 - 19:20
LHR
-
SOF
3h 15mdirect
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
£129British Airways
Tue, 13 Oct - Wed, 21 Oct
LOT Logo
10:20 - 13:55
LHR
-
SOF
25h 35m
1 stop
LOT Logo
18:45 - 22:00
SOF
-
LHR
5h 15m
1 stop
£131LOT
Thu, 1 Oct - Tue, 6 Oct
LOT Logo
10:20 - 18:00
LHR
-
SOF
5h 40m
1 stop
LOT Logo
14:35 - 22:00
SOF
-
LHR
9h 25m
1 stop
£131LOT
Fri, 23 Oct - Fri, 6 Nov
Multiple Airlines Logo
20:50 - 13:15
LHR
-
SOF
14h 25m
1 stop
Multiple Airlines Logo
05:00 - 12:25
SOF
-
LHR
9h 25m
1 stop
£136Multiple Airlines
Wed, 23 Sep - Wed, 30 Sep
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
£138British Airways
Wed, 30 Sep - Wed, 14 Oct
Multiple Airlines Logo
09:55 - 09:45
LHR
-
SOF
21h 50m
1 stop
Multiple Airlines Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
£145Multiple Airlines
Mon, 7 Sep - Mon, 5 Oct
Lufthansa Logo
07:25 - 23:15
LHR
-
SOF
13h 50m
1 stop
Lufthansa Logo
19:25 - 22:40
SOF
-
LHR
5h 15m
1 stop
£158Lufthansa
Sat, 19 Sep - Wed, 30 Sep
Lufthansa Logo
07:25 - 18:40
LHR
-
SOF
9h 15m
1 stop
Lufthansa Logo
19:25 - 22:40
SOF
-
LHR
5h 15m
1 stop
£158Lufthansa
Wed, 9 Sep - Wed, 16 Sep
Bulgaria Air Logo
17:55 - 23:15
LHR
-
SOF
3h 20mdirect
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
£164Bulgaria Air
Fri, 11 Sep - Fri, 18 Sep
Bulgaria Air Logo
17:55 - 23:15
LHR
-
SOF
3h 20mdirect
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
£164Bulgaria Air
Booking Insights

KAYAK’s insights & trends for Heathrow to Sofia flights

Get data-powered insights and trends into flights from Heathrow to Sofia to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to Sofia?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Sofia departing in November.

Flight prices are below average for this route right now.

Flights to Sofia from London Heathrow Airport usually cost between £214 and £339 in November.
The lowest price found in the past 5 days was £129 on British Airways (13 Nov–16 Nov).

What’s the cheapest day of the week to fly from London Heathrow Airport to Sofia?

The average price of all round-trip flights from London Heathrow Airport to Sofia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sofia on a Monday and more expensive on a Sunday. On your return trip to London Heathrow Airport, you should consider flying back on a Thursday, and avoid Mondays for better deals.

What is the cheapest month to fly from London Heathrow Airport to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Sofia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Sofia is January, where tickets cost £131 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £286 and £260 respectively.

Can I save money by flying with a stopover from London Heathrow Airport to Sofia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £219 on average.

How far in advance should I book a flight from London Heathrow Airport to Sofia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Sofia, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Sofia

Low season

October

Cheapest flight

£66
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from London Heathrow Airport to Sofia

When to book flights from Heathrow to Sofia

Are your dates flexible? Find out the best times to travel from Heathrow to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Sofia flights

  • What are the common stopover routes between London Heathrow and Sofia?

    When flying from London Heathrow to Sofia, popular stopover routes include flights via Frankfurt am Main (FRA), Munich Airport (MUC), and Athens International Airport (ATH). The majority of flights are direct routes between the cities, but Aegean Airlines, Turkish Airlines, and Lufthansa are a few airlines offering flights with stopovers in these cities.

  • Which airlines provide Business Class tickets between London Heathrow and Sofia?

    Passengers seeking Business Class travel options between London Heathrow and Sofia can consider airlines like British Airways, Turkish Airlines, and Austrian Airlines. These carriers offer comfortable Business Class services with spacious seating, priority boarding, and enhanced in-flight dining experiences.

  • What is the baggage policy on flights from London Heathrow to Sofia?

    When flying from London Heathrow to Sofia, familiarise yourself with the baggage policies of the airlines operating on this route. British Airways, Iberia Airlines, and KLM allow passengers to bring a cabin bag and checked luggage. The standard limits are 8 kg cabin luggage and checked luggage weighing 23 kg. Low-cost airlines generally don't include a baggage allowance.

  • Are there any eco-friendly airlines operating flights between London Heathrow and Sofia?

    Several airlines prioritise eco-friendly practices on flights between London Heathrow and Sofia. Lufthansa is committed to reducing carbon emissions and has implemented sustainability initiatives. Lufthansa offers the most eco-friendly flights, with trips via Frankfurt am Main (FRA) with 73% fewer Co2 emissions. Flights via Munich have closer to 70% less Co2.

  • How many flights are there between London Heathrow Airport and Sofia per day?

    Each day, there are between 1 and 2 direct flights that take off from London Heathrow Airport and land in Sofia, with an average flight time of 3h 12m. The most common departure time is 08:00 and most flights take off in the morning. Each week, there are 9 flights. The most frequent day of departure is Monday, when 22% of all weekly flights depart. The fewest flights depart on a Saturday.

  • What is the cheapest flight from London Heathrow Airport to Sofia?

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Sofia was £66 for a one-way ticket and £129 for a return.

  • Which aircraft models fly most regularly from London Heathrow Airport to Sofia?

    The Airbus A321neo is the aircraft model that flies most regularly on the London Heathrow Airport to Sofia flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Sofia?

    oneworld, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Sofia, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from London Heathrow Airport to Sofia?

    You can catch a direct flight from London Heathrow Airport to Sofia on Monday, Wednesday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from London to Sofia, Bulgaria Air or Austrian Airlines?

    The two airlines most popular with KAYAK users for flights from London to Sofia are Bulgaria Air and Austrian Airlines. With an average price for the route of £254 and an overall rating of 8.4, Bulgaria Air is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of £215 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Sofia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Sofia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sofia with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Sofia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Sofia

  • Looking for a cheap flight from Sofia to London Heathrow Airport? 25% of our users found flights on this route for £95 or less one-way and £237 or less round-trip.
  • When arriving at Sofia Airport (SOF) to visit the city, take advantage of the airport's free guided tours. These tours provide a wonderful opportunity to explore the airport's facilities, learn about its history, and experience Bulgarian culture. It's a unique way to make the most of your time at the airport and discover more about Sofia before even leaving the premises.
  • When booking self-transfer flights from London Heathrow (LHR) to Sofia, like British Airways and Wizz Air trips via Basel EuroAirport Swiss, consider the stopover duration. Ensure you have sufficient time to collect your luggage, go through customs, and check in again for the connecting flight. Familiarise yourself with the airport layout, follow clear signage, and allow ample time for your transfer.
  • Passengers can access British Airways accessibility services by contacting the British Airways Special Assistance team prior to their journey. The team can be reached through the dedicated helpline or by requesting assistance during the booking process. British Airways ensures a comfortable travel experience with services such as wheelchair assistance, priority boarding, and dedicated support for passengers with specific needs.
  • When travelling with checked luggage to Sofia, it is recommended to choose reputable airlines like Lufthansa or British Airways. Lufthansa offers affordable flights via Frankfurt am Main (FRA) with a generous baggage allowance of 8 kg cabin luggage and 23 kg checked luggage. Opting for major airlines ensures a smooth and reliable travel experience with ample luggage capacity.
  • For business travellers or passengers needing in-flight connectivity from London Heathrow to Sofia, several airlines offer Wi-Fi services. British Airways provides reliable in-flight Wi-Fi on their flights, keeping you connected throughout the journey. Aegean Airlines also offers onboard Wi-Fi services, ensuring you can stay productive and connected during the flight. Check with the respective airlines for more details on Wi-Fi availability and pricing options.

Prefer to fly direct from London Heathrow Airport to Sofia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Sofia.
Find which airlines fly direct from London Heathrow Airport to Sofia Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Sofia

Monday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Wednesday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Friday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Saturday

Bulgaria Air

Bulgaria Air

Sunday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

See more direct flights

Direct returns

Sofia to London Heathrow

Monday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Wednesday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Friday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Saturday

Bulgaria Air

Bulgaria Air

Sunday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

See more direct flights

Reviews of the top 5 airlines flying from Heathrow to Sofia

 
See real verified KAYAK customer reviews for airlines flying from London to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Sofia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Bulgaria AirOverall score based on 60 reviews
7.8Food
8.1Comfort
8.7Crew
8.4Boarding
7.2Entertainment
Airline reviews

Bulgaria Air should stop using buses for boarding if possible. It is very inconvenient and delays the departure

8.0 ExcellentNikola, Jun 2025
SOF - AMS
Read more Bulgaria Air reviews

Bulgaria Air should stop using buses for boarding if possible. It is very inconvenient and delays the departure

Easy check in. Hot snack with wine if desired. Then chocolate, tea or coffee. Altogether excellent.

Seats are quite small, but due to the plane being empty we were aloud to switch seats to have more room

The water was handed out as we were entering the plane, instead of when we are set down and our hands are free of luggage. There was absolutely no food offered from Sofia to London, except a low quality chocolate, which was not delicious. The flight between London and Miami was ok, as far as service and food, but it was absolutely freezing, throughout the whole aircraft, especially in the back seats, I had to cover my head with a scarf, besides using the blanket and still I was feeling extremely uncomfortable. The passengers seating around me shared the same opinion. We did ask for something to be done about it. The gentleman did try to adjust it, but the effect last very short time, and towards the end of the flight it was extremely cold and blowing strong again ….

I was upgraded to business class. Seats same size but better food. Polite service.

Just overall a poor experience with little to justify the price of the ticket!

Accommodate the passangers at the gates. They only allow groups 1-3 to sit near/at the gate. We had to wait 3 HRs an had to look for a seat far away from the gate. Other than that was like other Airports.

It was on time. Snacks could have been provided for free.

We have travelled on 13 December with Austrian Airlines from Yangon through Bangkok and Vienna to Varna. The first flight operated by Thai Airlines was nice and comfortable. I wouldn’t say the same thing about the next two flights which were operated directly by the Austrian Airlines. During our flight from Bangkok to Vienna:  > The service was very poor – serving of food and drinks was disorganized, late and not combined, the stewards were walking back and forth without doing anything substantial for the passengers. Even the morning breakfast was very late with a cup of coffee almost while landing (after a reminding).  > The food itself was OK-ish but for a 12-hour flight, there were no snacks/bites in between dinner and breakfast as it is with the other airlines.  > The cutlery was wooden, most probably recycling, but very unpleasant to eat with.  > The stewards were not rude but not friendly and/or helpful  > And also, half of the passengers had travel sets, others did not. The flight from Vienna to Varna was another surprise: firstly, the flight was late and secondly, they were serving only water free, even the coffee was paid, so were the snacks, but we had to pay to reserve seats. The whole experience is as if it was a low-cost airline. All in all, I wouldn’t recommend using the services of Austrian Airlines: the ticket prizes are quite the same as of the other carriers flying to this destination and you would have much pleasant time.

There was not enough sparkling water available during the flight from LAX to Vienna.

The crew was attentive but not intrusive, and was always kind in every interaction.

From all the segments I flew it was the only one I did not get the option to choose ni seat, I did not get the quality of seat I had paid for. Crew was nice, airplane was clean, but no food, only water and a small courtesy chocolate. Everything else you had to pay for.

The flight was late. We accommodated other missed flights, and the plane was full of people, without space to store carry-on luggage. They lost our checked luggage for the entire flight and delivered it after two days.

Very efficient and profesional .One of the best. I had 20 minutes between 2 flights and still made it amazing.

Flying business class saves you. Once you get out of the terminal and onto the plane, it’s fine. The traffic at the gate is a horror. No organization at all. The fact that Business class is promised early boarding is a myth.

Although I was flying in business class, the feeling, comfort and in general the whole experience was like flying in a low cost airline. Boarding by. Us, no priority to business class passengers. The plane was very old and looked poor and rely old. Seats do not recline. Space between rows very small. No separation between business class and economy. No separate toilet for business class passengers. Of course no entertainment, no WiFi and no charging. Very bad experience

The seats are small and the movie selection was disappointing. However, the food was excellent and the cabin crew was attentive and kind.

Aircraft was new. Food so so, especially vegetarian was very disappointing.

Very courteous staff. Abnoxious passenger in front of me who reclined her seat all the way without warning and without considering the person behind her. My flight ORD-WAW was so much more pleasant because of the courtesy of the passenger in front of me.

I would like to be able to choose the seat before the flight without paying extra money. Family members should not to be separated from each other.

The staff was good. Very friendly and respectful. The airline not so much. They aren't very informative at all.

The worst experience ever! They never told me I had to transfer my ticket at the ticket transfer counter. They moved me to a flight leaving the next day, which was also heavily delayed. The staff at the airport were rude and not helpfull. I'll never travel with this airline again and will not recommend it

Garbage airline at a premium price. Both ways was unable to purchase seats before checking. Called, messaged on Facebook, and emailed. All three times staff said I could, and gave me form responses on how to, despite providing screenshots/explaining beforehand showing I couldn't. At check-in both times they sat me and my wife separately, despite booking together. Both legs the USB port in my entertainment system was broken. Food is atrocious. Seats are old and uncomfortable, and struggle to adjust. Toilets were like portapotties at a concert.

The boarding was delayed several times. The take off was two hours late.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

The agent, who took my mother to her gate, kept talking with one of her male coworkers and treating my mother like a sack of potatoes. She was ignoring my questions because she was too busy flirting with her male colleague. This was a very unprofessional behavior. We also had to wait for close to half an hour for an agent to arrive.

Very good flight, only problem is the boarding process where some peoples do not have manners and do not how to fly ( preparing your documents, oversized carry-ons, not understanding or feigning to not understand directives).

I really like it and travel to Europe and back with Lufthansa, but it is getting expensive, a bit beyond my me

Not available crew to load the luggage for all the passengers,comon situation for local European destinations , not acceptable situation, never Lufthansa again 😉 🙄

Flight was overbooked. Crew did a great job but passengers weren’t nice and really not patient. Flying in these times is not the best idea tbh.

Not good because in this cancelled and then rebooked flight BA put me and my husband in both middle seats when we were originally seated together in original flight and i was in aisle. I hate sitting in the middle. BA food needs to be better. It was just ok. Thanks though to screw and everyone one for safe flight

Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

The crew made it a great flight. They were friendly and attentive. They made me want to fly British Airways again.

BA has not been handling priority luggage with any special priority. This time our luggage was distinctly very slow to arrive, well after the first half of items to arrive. Business class flights cost a lot and it would be nice to have that reflected in the speed of baggage handling! (I note that this has worsened in our long experience of BA.) On a different note, we spent 2.5 hours on the plane after landing because of an airport mishap at Boston Logan. The pilot provided reasonably frequent update but more could have been done to ensure passenger comfort, such as more beverage and maybe snack services.

The onboard service makes it extremely difficult and slow to go to the toilet

The boarding process was a disaster. No one respects the boarding groups—tired old aeroplane. There are no sockets to charge phones. The cushion seats are ancient and hurts back and gluts

Amazing crew - they were exceptionally nice. From ground staff to the plane

Small overcrowded flight with limited overhead storage bins. The last row 30 has no windows. The aircraft has no entertainment system. The flight is 3+ hrs and is not a low-cost, but the free snack is a laughable size: a SINGLE bite soft cake/pie.

The seats were quite uncomfortable. I felt like I was leaning forward the entire time, which was quite bad for my neck.

Everything you need to know for your flight from Heathrow to Sofia

Information on your arrival and departure airports