£56 Find Cheap Flights from Bulgaria 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 to Heathrow departing on 3/11. 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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Cheap Flights from Bulgaria to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Bulgaria 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 Bulgaria 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, 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, 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 - Wed, 11 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
Sun, 20 Dec - Sun, 3 Jan
British Airways Logo
19:45 - 21:10
SOF
-
LHR
3h 25mdirect
British Airways Logo
13:25 - 18:35
LHR
-
SOF
3h 10mdirect
£140British Airways
Wed, 28 Oct - Wed, 11 Nov
British Airways Logo
21:05 - 22:30
SOF
-
LHR
3h 25mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£148British Airways
Mon, 16 Nov - Sun, 22 Nov
British Airways Logo
17:15 - 18:45
SOF
-
LHR
3h 30mdirect
British Airways Logo
13:25 - 18:35
LHR
-
SOF
3h 10mdirect
£158British 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
Wed, 23 Dec - Mon, 28 Dec
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
20:50 - 01:50
LHR
-
SOF
3h 00mdirect
£174Bulgaria Air
Fri, 9 Oct - Sun, 11 Oct
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
08:55 - 14:05
LHR
-
SOF
3h 10mdirect
£176Bulgaria Air
Booking Insights

KAYAK's insights & trends for flights to Heathrow

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

What is the cheapest day to fly to London?

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

Based on KAYAK data, the cheapest day to fly to London is Thursday where round-trip tickets can be as cheap as £114. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £218 on average.

What is the cheapest time of day to fly to London Heathrow Airport?

The average price for all round-trip flights to London Heathrow Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to London Heathrow Airport is generally at night, when round-trip flights cost £134 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £212.

What is a good deal for flights to London Heathrow Airport?

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Sofia £101 return.

Good to know - Cheap tickets from Bulgaria 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

FAQs - booking London Heathrow Airport flights

  • How far is London Heathrow Airport from central London?

    You’ll need to travel 14 miles to reach the London city centre from London Heathrow Airport.

  • How much is a flight to London?

    On average, a flight to London costs £180. The cheapest price found on KAYAK in the last 2 weeks cost £58 and departed from Sofia Airport.

  • How does KAYAK find such low prices on flights 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 to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to London Heathrow Airport are there each week?

    Each week there are around 1,579 direct flights from within Bulgaria to London Heathrow Airport. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found round-trip tickets to London Heathrow Airport for the following prices or less: Cheap flights to London Heathrow Airport from Sofia £103
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top airlines flying from Bulgaria to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Bulgaria to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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
8.4Boarding
7.8Food
8.1Comfort
8.7Crew
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 ….

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

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Hounslow
Luton
Southend-on-Sea
Northampton
Swindon
Winchester
Slough
Stansted
Croydon
Folkestone
Newport
Poole
Chichester
Colchester
Maidstone
Crawley
Salisbury

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London