SOF - LHR

£56 Find Cheap Flights from Sofia to London Heathrow Airport – 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 Sofia to Heathrow departing on 6/11. 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
£121
Typical prices: £168-£237
British Airways
Mon 7/12Wed 9/12
SOF - LHR • Direct
Cheapest one-way flight
£56
Typical prices: £94-£129
Air Serbia
Fri 6/11
SOF - LHR • 1 stop
Direct flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Bulgaria Air and British Airways. Average duration is 3h 37m
Direct flights
Direct flights
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Direct flights
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Top airlines
Cheapest • from £121 (return)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top stopover airports
Cheapest • Avg £148 (return)
Shortest trip • 5h 05m (one-way)
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
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Flight Deals

Cheap Flights from Sofia to Heathrow (SOF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sofia to Heathrow 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 Sofia to Heathrow

Mon, 7 Dec - Wed, 9 Dec
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£121British Airways
Mon, 7 Dec - Wed, 9 Dec
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£121British Airways
Mon, 7 Dec - Wed, 9 Dec
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£122British Airways
Mon, 2 Nov - Thu, 12 Nov
Air Serbia Logo
16:05 - 12:25
SOF
-
LHR
22h 20m
1 stop
Air Serbia Logo
13:20 - 15:25
LHR
-
SOF
24h 05m
1 stop
£133Air Serbia
Mon, 2 Nov - Fri, 6 Nov
Air Serbia Logo
16:05 - 12:25
SOF
-
LHR
22h 20m
1 stop
Air Serbia Logo
13:20 - 15:25
LHR
-
SOF
24h 05m
1 stop
£133Air Serbia
Mon, 2 Nov - Sun, 8 Nov
Air Serbia Logo
16:05 - 12:25
SOF
-
LHR
22h 20m
1 stop
Air Serbia Logo
13:20 - 03:00
LHR
-
SOF
11h 40m
1 stop
£133Air Serbia
Mon, 9 Nov - Wed, 18 Nov
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£136British Airways
Fri, 25 Sep - Sat, 26 Sep
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
08:55 - 14:05
LHR
-
SOF
3h 10mdirect
£171Bulgaria Air
Mon, 12 Oct - Fri, 23 Oct
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
17:55 - 23:15
LHR
-
SOF
3h 20mdirect
£173Bulgaria Air
Mon, 12 Oct - Sat, 5 Dec
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
12:55 - 18:05
LHR
-
SOF
3h 10mdirect
£173Bulgaria Air
Booking Insights

KAYAK’s insights & trends for Sofia to Heathrow flights

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

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

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

Flight prices are below average for this route right now.

Flights to London Heathrow Airport from Sofia usually cost between £252 and £300 in December.
The lowest price found in the past 5 days was £121 on British Airways (7 Dec–9 Dec).

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

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

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Sofia to London Heathrow Airport. For your return ticket, we recommend flying on a Monday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to London Heathrow Airport, 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 Sofia to London Heathrow Airport is June, where tickets cost £0 (return) on average. On the other hand, the most expensive months are August and September, where the average cost of round-trip tickets is £298 and £258 respectively.

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

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 £217 on average.

Expert advice

Expert advice for your flight from Sofia to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

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

Low season

March

Cheapest flight

£56
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly and prices are also 24% lower on average.
Flight from Sofia to London Heathrow Airport

When to book flights from Sofia to Heathrow

Are your dates flexible? Find out the best times to travel from Sofia to Heathrow 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 Sofia to London Heathrow Airport flights

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

    Each day, there are between 1 and 2 direct flights that take off from Sofia and land in London Heathrow Airport, with an average flight time of 3h 37m. The most common departure time is 06:00 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 Sofia to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from Sofia to London Heathrow Airport was £56 for a one-way ticket and £121 for a return.

  • Which airports will I be using when flying from Sofia to London Heathrow Airport?

    When flying out of Sofia you will be using Sofia. You will be landing at London Heathrow Airport, also known as London Heathrow.

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

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Sofia to London Heathrow Airport flight route.

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

    oneworld is the only airline alliance operating flights between Sofia and London Heathrow Airport.

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

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

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

    The two airlines most popular with KAYAK users for flights from Sofia to London are Bulgaria Air and British Airways. With an average price for the route of £229 and an overall rating of 8.4, Bulgaria Air is the most popular choice. British Airways is also a great choice for the route, with an average price of £144 and an overall rating of 6.7.

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

    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 Sofia to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Sofia 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 Sofia to London Heathrow Airport?

    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 London Heathrow Airport with an airline and back to Sofia with another airline.

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

    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 London Heathrow Airport from Sofia 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 Sofia to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Sofia? 25% of our users found flights on this route for £105 or less one-way and £101 or less round-trip.

Prefer to fly direct from Sofia to London Heathrow Airport?

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

Direct departures

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

Direct returns

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

Reviews of the top airlines flying from Sofia to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Sofia to London. 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 Sofia to Heathrow? 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
8.4Boarding
7.2Entertainment
8.7Crew
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 ….

The seats are not comfortable if you are not tall.

The flight was cancelled and I was re-routed via an inconvenient routing proposed.

Overall great! They could add more entertainment option. They kept running out of vegetarian food options and I got travel packs. This happened on all legs of the flight. Need to plan for it better - I am sure you have some data analytics from all your travels.

Better service to offer drinks in the middle of the trip

They can improve Everything, a 12 hour flight has just 2 meals and the meals are 7 hours apart, wtf are they thinking. At the very least they should have 2 refreshments like some small snacks with some water or some other refreshments since there are people travelling with medical conditions. The services and seats were genuinely horrible

As I remember my last BA flight - mediocre at best. Uncomfortable with poor and minimal food and drinks. Screen broke shortly into flight so didn’t have access to entertainment either.

They gave away my business class seat. No explanation and no apology. Told me I had to take the downgrade if I wanted to get to India. Then no WiFi for 10 hours. Just ridiculous. We should not work with this company at Deloitte. They don’t know how to run a business.

The British airways from Dallas to London is not great , the food is not good at all but BA from London to Delhi is amazing food is great.

It made me feel safe that the crew diligently check our seatbelts. One crew member was so very patient with a passenger in explaining to him why his daughter’s car seat had to be buckled in a certain way. This passenger and his wife were quite argumentative and she maintained her composure brilliantly.

inedible food, rude and incompetent crew, un-necessary and un-justified delays

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

Information on your arrival and departure airports