£56 Find Cheap Flights from Bulgaria to London Heathrow Airport – Compare and Save

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Cheap Flights from Bulgaria to Heathrow

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bulgaria to Heathrow

Mon, 21 Dec - Wed, 6 Jan
British Airways Logo
17:15 - 18:45SOF  Sofia-LHR London Heathrow
3h 30mdirect
British Airways Logo
14:55 - 20:10LHR  London Heathrow-SOF Sofia
3h 15mdirect
£125British Airways
Wed, 4 Nov - Sun, 8 Nov
LOT Logo
14:35 - 09:35SOF  Sofia-LHR London Heathrow
21h 00m1 stop Warsaw Frederic Chopin
LOT Logo
10:35 - 17:55LHR  London Heathrow-SOF Sofia
5h 20m1 stop Warsaw Frederic Chopin
£126LOT
Mon, 21 Dec - Sun, 3 Jan
British Airways Logo
17:15 - 18:45SOF  Sofia-LHR London Heathrow
3h 30mdirect
British Airways Logo
13:25 - 18:35LHR  London Heathrow-SOF Sofia
3h 10mdirect
£128British Airways
Tue, 6 Oct - Wed, 14 Oct
LOT Logo
18:45 - 22:00SOF  Sofia-LHR London Heathrow
5h 15m1 stop Warsaw Frederic Chopin
LOT Logo
10:20 - 18:00LHR  London Heathrow-SOF Sofia
5h 40m1 stop Warsaw Frederic Chopin
£128LOT
Wed, 7 Oct - Wed, 14 Oct
Multiple Airlines Logo
21:40 - 09:10SOF  Sofia-LHR London Heathrow
13h 30m1 stop Barcelona-El Prat
Multiple Airlines Logo
20:50 - 09:45LHR  London Heathrow-SOF Sofia
10h 55m1 stop Barcelona-El Prat
£131Multiple Airlines
Wed, 25 Nov - Sun, 29 Nov
British Airways Logo
21:05 - 22:30SOF  Sofia-LHR London Heathrow
3h 25mdirect
British Airways Logo
13:25 - 18:35LHR  London Heathrow-SOF Sofia
3h 10mdirect
£133British Airways
Tue, 13 Oct - Sun, 23 May
Air Serbia Logo
16:00 - 12:30SOF  Sofia-LHR London Heathrow
22h 30m1 stop Belgrade Nikola Tesla
Air Serbia Logo
19:25 - 15:30LHR  London Heathrow-SOF Sofia
18h 05m1 stop Belgrade Nikola Tesla
£134Air Serbia
Tue, 3 Nov - Sun, 8 Nov
LOT Logo
14:35 - 22:00SOF  Sofia-LHR London Heathrow
9h 25m1 stop Warsaw Frederic Chopin
LOT Logo
10:35 - 17:55LHR  London Heathrow-SOF Sofia
5h 20m1 stop Warsaw Frederic Chopin
£138LOT
Wed, 23 Sep - Sun, 27 Sep
Bulgaria Air Logo
15:20 - 16:45SOF  Sofia-LHR London Heathrow
3h 25mdirect
Bulgaria Air Logo
08:55 - 14:05LHR  London Heathrow-SOF Sofia
3h 10mdirect
£225Bulgaria Air
Fri, 25 Sep - Fri, 9 Oct
Bulgaria Air Logo
15:20 - 16:45SOF  Sofia-LHR London Heathrow
3h 25mdirect
Bulgaria Air Logo
17:55 - 23:15LHR  London Heathrow-SOF Sofia
3h 20mdirect
£231Bulgaria 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?

Based on KAYAK data, the cheapest day to fly to London is Thursday where round-trip tickets can be as cheap as £112. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £225 on average.

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

The cheapest time of day to fly to London Heathrow Airport is generally at night, when round-trip flights cost £132 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is £216.

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 £218 return.

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

Low season

March

Cheapest flight

£56
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly (28% more expensive 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 £240. The cheapest price found on KAYAK in the last 2 weeks cost £75 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 1,578 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 £168
  • 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 3 airlines flying from Bulgaria to Heathrow

 
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 59 reviews
7.9Food
8.3Boarding
8.8Crew
7.2Entertainment
8.1Comfort
Airline reviews

This was managed by Bulgaria Air. Lots of confusion to whether we had tickets or not. Aegean Airlines also printed both our Aegean Airline and American Airlines flights on the same boarding pass. This caused multiple issues in the Sofia and Athens airports. We could not get a boarding pass from American Airlines since it was booked through Aegean. At passport control in Athens we were so delayed that we almost missed our flight. Passport control was not going to let us pass. They let us go when they announced our flight was boarding.

2.0 MediocreBrian, Aug 2026
Read more Bulgaria Air reviews

This was managed by Bulgaria Air. Lots of confusion to whether we had tickets or not. Aegean Airlines also printed both our Aegean Airline and American Airlines flights on the same boarding pass. This caused multiple issues in the Sofia and Athens airports. We could not get a boarding pass from American Airlines since it was booked through Aegean. At passport control in Athens we were so delayed that we almost missed our flight. Passport control was not going to let us pass. They let us go when they announced our flight was boarding.

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 ….

Horribly bag legroom, my legs do not fit even before recline

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

One of the best experiences ever. Thank you to the crew.

The airline wouldn't let me take my stroller to the gate, even though the website states we can. My screen did not work. Their website also states that long flights offer wifi to be purchased. My 8.5-hour flight did not have wifi available. I pushed my call light to ask for water (I was willing to buy it). It took over an hour for them to come and they could only give me a small glass at a time. Waters were not available for purchase.

Flight was delayed by a hour could have been better addressed. Flight was fine with great service by the flight attendants

They broke my luggage. I’m pissed off about that. Service was slow and inconsistent.

first and above all I liked the crew; everyone was one of a kind, friendly, professional, and eager to help.

Flight WAW-ORD flight attendants were really rude, no smile at all. Except one young girl working in aft part of the cabin. They were talking only in Polish. After 4th/5th time asking in english, they were answering in english. Not the best approach to the pax.

Lot still has not refunded me after they cancelled my flight to India!! Kayak had been awful at getting me this refund too. Will NEVER be using kayak or LOT again.

Boarding was seamless, crew were great. Less disruptions on the night flight would have improved the experience and turning off lights earlier.

Worst customer service I've ever experienced on a flight. They downgraded my seat without giving me any other options, then sat in a seat with an arched back for 10 hours. I was not able to get ahold of any customer service representatives to understand what alternatives I might have, or how they will be handling a refund for the difference in fares between business and premium economy that I was downgraded to.

British airways needs to improve their luggage handling process and communications. The luggage was lost/left in UK. But, this was not communicated to me as a traveler and because of the wait at the carousel in Seattle (we have to go through customs and immigration on arrival to US) I missed the connecting flight and had to be rebooked. No one informed me that the luggage wasn't there, and there was no one there at the carousel to check with or help me get through security faster. I wasn't the only one- there were a lot of people waiting for luggage that didn't arrive.

My bags were lost. I waited in a line for 5 hours after I landed and got no resolution to the issue.

Easily one of the best flights I’ve ever taken. Worth it to upgrade slightly. Crew was phenomenal. Just wish the man sat next to me kept his shoes on. There should be a rule about that. But I wish I could take every flight with BA.

Poor experience at Bengaluru Airport. Slow check-in process. Boarding calls were unclear and by number (no clarification given for priority groups) and were caught in wrong queue with infant based on what was written on ticket. Aircraft seat was not comfortable. Slow initial service for flight at 03:00 where most passengers wanted to sleep - did not seem right to be serving meal after takeoff. Poor quality breakfast in morning, not offered any tea/coffee alongside Only saving grace was that this was a night flight and the plane had free high-speed Starlink wifi.

Great flight, great crew, decent food. Premium Economy was very comfortable. I compare this flight to the one we took on BA from DC to London: Like a different airline. The food was atrocious, the crew aloof, and the cabin not as comfortable. Based on that first flight we said we'd avoid BA, but the return trip changed our minds.

delayed more than an hour with very poor boarding and service

A/C temp. was way too cold during the flight.

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

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