LHR - SOF

£69 Find Cheap Flights from London Heathrow Airport to Sofia

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 12/10. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sofia.
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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

Sat, 8 Nov - Mon, 10 Nov
British Airways Logo
06:05 - 11:15LHR-SOF
3h 10mdirect
British Airways Logo
17:25 - 18:55SOF-LHR
3h 30mdirect
£103British Airways
Find Deal
Sat, 15 Nov - Sun, 23 Nov
British Airways Logo
06:05 - 11:15LHR-SOF
3h 10mdirect
British Airways Logo
14:30 - 16:00SOF-LHR
3h 30mdirect
£109British Airways
Find Deal
Wed, 8 Oct - Wed, 22 Oct
LOT Logo
06:30 - 13:50LHR-SOF
5h 20m1 stop
LOT Logo
14:35 - 22:00SOF-LHR
9h 25m1 stop
£149LOT
Find Deal
Wed, 8 Oct - Wed, 15 Oct
LOT Logo
06:30 - 13:50LHR-SOF
5h 20m1 stop
LOT Logo
05:20 - 09:20SOF-LHR
6h 00m1 stop
£151LOT
Find Deal
Sun, 5 Oct - Thu, 16 Oct
Air Serbia Logo
19:25 - 02:55LHR-SOF
5h 30m1 stop
Air Serbia Logo
16:05 - 12:30SOF-LHR
22h 25m1 stop
£152Air Serbia
Find Deal
Wed, 15 Oct - Sat, 18 Oct
Air Serbia Logo
13:30 - 15:35LHR-SOF
24h 05m1 stop
Air Serbia Logo
16:05 - 12:30SOF-LHR
22h 25m1 stop
£156Air Serbia
Find Deal
Fri, 7 Nov - Mon, 10 Nov
Lufthansa Logo
06:35 - 13:15LHR-SOF
4h 40m1 stop
Lufthansa Logo
19:05 - 22:55SOF-LHR
5h 50m1 stop
£157Lufthansa
Find Deal
Sun, 9 Nov - Tue, 11 Nov
Lufthansa Logo
07:40 - 22:45LHR-SOF
13h 05m1 stop
Lufthansa Logo
14:00 - 17:05SOF-LHR
5h 05m1 stop
£161Lufthansa
Find Deal
Tue, 30 Sep - Sat, 4 Oct
Austrian Airlines Logo
06:00 - 15:20LHR-SOF
7h 20m1 stop
Austrian Airlines Logo
16:05 - 18:40SOF-LHR
4h 35m1 stop
£169Austrian Airlines
Find Deal
Sat, 20 Sep - Tue, 30 Sep
Austrian Airlines Logo
19:30 - 11:40LHR-SOF
14h 10m1 stop
Austrian Airlines Logo
18:55 - 08:20SOF-LHR
15h 25m1 stop
£171Austrian Airlines
Find Deal

Everything you should know

Top airlines
British Airways
Cheapest • from £103 (return)
Bulgaria Air
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 31% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
5 days a week
There are direct flights from Heathrow to Sofia 5 days a week: Mon, Wed, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest return fare
£103
Overall average: £139
British Airways
Sat 8/11Mon 10/11
LHR - SOF • Direct
Cheapest one-way flight
£69
Typical prices: £92-167
Aegean Airlines
Sun 12/10
LHR - SOF • 1 stop
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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.

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 Tuesday and more expensive on a Thursday. On your return trip to London Heathrow Airport, you should consider flying back on a Thursday, and avoid Sundays 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 November, where tickets cost £139 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £298 and £255 respectively.

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 3 weeks before departure, which saves you about 8% 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 seasonJanuary
Cheapest flight£69
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (28% 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.

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Sofia was £94 for a one-way ticket and £140 for a return.

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

    The Airbus A220-300 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 is the only airline alliance operating flights between London Heathrow Airport and Sofia.

  • 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 £229 and an overall rating of 8.0, Bulgaria Air is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of £199 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 £129 or less one-way and £190 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, British Airways

Bulgaria Air, British Airways

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, British Airways

Bulgaria Air, British Airways

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.
8.0
Bulgaria AirOverall score based on 59 reviews
7.7Comfort
7.0Entertainment
7.7Food
8.4Crew
8.1Boarding
Airline reviews

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

8.0 ExcellentNikola, Jun 2025SOF - 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 ….

Cons: "Staff seemed confused and would not let us seat at our assigned seats which we picked in order to accommodate our baby. Instead they put us in an even worse spot and decided to ignore the people that took out seats and left them be."
Cons: "Them actually refunding my flight when I couldn't legally travel due to COVID lockdowns."

Boarding was delayed for an unknown reason for more than an hour. While the airplane was at the gate, the boarding time was moved by 10-20 minutes every 15 minutes. No entertainment on the plane.

The flight itself was pleasant and on time. Crew was very good. However, breakfast food was barely acceptable. Unfortunately this satisfies the recent industry standards. I asked for a sandwich with ham (another choice was cheese), but received a sandwich with roast beef.

During the flight, the fleas biting me in the plane.

Delay rushed to the next plane and bags didn’t arrive in chicago

Agents helping disable person doesnt know connections to Poland and after 9 agents helping and 2hours ,we made it to proper terminal. Polish Dreamliner its Polish nightmare liner with so narrow seats and no room under front seat for bag and feet,in economy class.To upgrade, to higher standart cost an arm and leg ,even there are empty seats No good experience overall

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

Checking in took very long for whatever reason. Flight comfort these days is always poor so… Crew was great thought!

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

Bags lost no more to say, bad communication and no urgency to get it back to the hotel by the airline properly the worst airline I have used.

The customer service rep on chat refused carrying golf set at no charge that is customary for LOT and others. I wanted yo carry just ONE club not even full set! Web check in was nightmare. Most horrible lounge at warsaw. To call it business class is a BIG exaggeration. Rude staff warsaw to nyc. Seats uncomfortable and not flat as is now customary. Bad content and entertainment system.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

My flight was canceled and even though I paid אם KAYAK you didn't even answer me and obviously didn't refund my money. I will never buy a ticket through you again.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

Despite the booked seats in front of the land we were moved to the back of the plane even first like 8 lines were totally without pasangers. When I tried to sit on empty seat flight attendant asked me to go to my dedicated seat in the fully crowded back of the plane. She was not able to explain why. Food was very poor on flight LAX - VIE.

We had a wonderful experience overall. The only issue was check-in our luggage at the Split Airport counter. It was very confusing because we needed to pay for baggage.

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

Landing was a little hard. Food was not great. No options.

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The plane was late (as was my flight out from Birmingham the day before)

The flight was delayed by an hour. Made the connection uncomfortably tight.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

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).

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

The flight was fine but no food available apart from snacks like Pringles and olives which was a problem for me as I hadn’t eaten anything that day. But the worst problem was BA left 24 suitcases in Heathrow as the flight was too full but didn’t tell anyone. So we waited for ages at Toulouse airport with no information and finally found out from the one member of staff in the baggage collection area who explained what had happened and apologised for no announcement being made but said that was their policy. Then BA contacted me today to say they have found my luggage and can deliver it to me on Tuesday - half way through my holiday!!!! So a friend has had to make a four hour round trip in his car to go and collect the luggage from the airport so we can get it today. A TOTAL SHAMBLES AND DISREGARD BY BA FOR THEIR PASSENGERS’ BEST INTERESTS.

Much much better than my previous times on British Airways the food was spot-on and the service was really genuine and attentive

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

First time on BA but will fly with them from now on! Everything about the flight was superb!!!

Horrible experience. They broke the handle of my checked in suitcase and then refused pay for damages

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

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

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