£49 Find Cheap Flights from Bulgaria to London Heathrow Airport

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 20/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flight Deals

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

Wed, 1 Apr - Sun, 12 Apr
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£111British Airways
Wed, 1 Apr - Sun, 12 Apr
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£114British Airways
Sun, 29 Mar - Mon, 6 Apr
Bulgaria Air Logo
06:25 - 08:05
SOF
-
LHR
3h 40mdirect
Bulgaria Air Logo
17:55 - 23:15
LHR
-
SOF
3h 20mdirect
£118Bulgaria Air
Wed, 1 Apr - Tue, 14 Apr
LOT Logo
18:45 - 09:20
SOF
-
LHR
16h 35m
1 stop
LOT Logo
10:20 - 13:55
LHR
-
SOF
25h 35m
1 stop
£120LOT
Fri, 12 Jun - Sun, 14 Jun
LOT Logo
18:45 - 09:20
SOF
-
LHR
16h 35m
1 stop
LOT Logo
06:30 - 01:45
LHR
-
SOF
17h 15m
1 stop
£123LOT
Wed, 1 Apr - Mon, 13 Apr
Bulgaria Air Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
Bulgaria Air Logo
17:55 - 23:15
LHR
-
SOF
3h 20mdirect
£127Bulgaria Air
Fri, 8 May - Sat, 9 May
Air Serbia Logo
16:05 - 12:30
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
19:55 - 15:35
LHR
-
SOF
17h 40m
1 stop
£127Air Serbia
Tue, 21 Apr - Tue, 28 Apr
Air Serbia Logo
16:05 - 12:30
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
13:30 - 15:35
LHR
-
SOF
24h 05m
1 stop
£128Air Serbia
Thu, 23 Apr - Thu, 30 Apr
Multiple Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m
1 stop
Multiple Airlines Logo
20:25 - 09:00
LHR
-
VAR
10h 35m
1 stop
£181Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
12:40 - 08:10
VAR
-
LHR
21h 30m
1 stop
Multiple Airlines Logo
20:50 - 23:15
LHR
-
VAR
24h 25m
2 stops
£195Multiple Airlines
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 flight to London Heathrow Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Sofia, at £111 return. The most popular connection is from Manchester to London Heathrow Airport and KAYAK users have found return deals for as low as £87 in the last 3 days.

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 Tuesday where round-trip tickets can be as cheap as £106. On the other hand, the most expensive day to fly is Friday, where round-trip prices are £291 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London Heathrow Airport is March, where tickets cost £139 on average for return flights. On the other hand, the most expensive months are August and September, where the average cost of tickets from Bulgaria is £252 and £233 respectively. For one-way flights, the best month to travel is March with an average price of £139.

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 £129 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 £196.

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 £188 return.

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

Low seasonOctober
Cheapest flight£49
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Sofia to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Sofia, at £111 return. The most popular connection is from Manchester to London Heathrow Airport and KAYAK users have found return deals for as low as £87 in the last 3 days.

  • 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 £172. The cheapest price found on KAYAK in the last 2 weeks cost £60 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.

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 £136
  • 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

 
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 59 reviews
8.7Crew
7.1Entertainment
8.1Comfort
7.8Food
8.4Boarding
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 ….

Good in general, but i think the chair is not comfortable for traveling more than 2 hours ..

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Stuck on a plane for 6 hours due to a technical or mechanical issue.

Horrible communication, flight boarded then we sat on plane for almost 5 hours as the runway was barely covered in snow with no plows in sight and the as we tried to taxi there was a major equipment failure due to poor push off technique causing all passengers to be taken off the flight to ultimately have the flight cancelled. There was barely any communication to passengers as to what was happening or what to do next to get placed on another flight. Arriving to my final destination a whole day later having to take a connecting flight through Lisbon to ultimately end up in New York instead of a direct flight as none available for the next day. Never flying LOT airlines again!

Boarding was a madhouse. Airport staff was completely disinterested in communicating about the delays. Never again.

The seats are very narrow. Communication regarding bids for better seating could be better

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.

Crew was excellent. Business class was poor on the short flight and mediocre at best on the international flight.

Very poor. Seats like economy class, food unbeatable, no charging, no entertainment, no WiFi, boarding by bus - no justification for calling and pricing this as business class

I liked the movie selection and the speed getting the luggage. I did not like the fact that for premium they did not have a personal kit with toothpaste, I travel all the time in premium economy and bussiness and althought the kit might bot be the same at least you have the smalles kit in premium economy. I did not like either that because i was in the last row of premium economy nothing made it to my seat. They run out of the food I wanted ( it is a surprise because there were only 6-7 rows. They would run out of orange jouice were thy were passing water/orange juice around, they run out of some alcohol. I am undertand running out of it but I don’t understand why mot getting kore. The service I received in row 11 was different from the service in rows 7,8…. Also the screen on my tv was broken. It did not respond to touch. So, in conclusion, if I compare my flight going to Europe with an American airline plane in premium and the one with British, British expereince was significantly much worse. This company is declining fast.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

BA is a fine airline. The problem lies with XCOVER INSURANCE, that KAYAK uses. Very poor service from insurance. No telephone number to contact XCOVER. Their replies are inadequate & overall very bad insurance. I wish kayak uses standard insurance company., such as AIG.

British Airways offers amenities subpar with all other airlines flying internationally. Sharing tis based on my experience with flying at least five other airline between IAD-DEL in the last six months.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I missed my flight because I was sick and the medicine the chemist provided made me sleepy. I had to pay $3500 to get home because you classified me as a no-show and would not listen to me otherwise. In addition you wanted to route me through Dubai, which was under siege by the time I arrived home and would’ve been in trouble. Had I taken that route

Limited entertainment. Music - very limited variety of music. Suggest more options in Hindi, Telugu, English for flights leaving from Hyderabad.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Food was good. For a long haul flight, there was “0” zero entertainment! What a disappointment. I do try to avoid BA. Next time its Emirates via Dubai to Cairo.

The internet was working on both sectors of the flight so hard to take the flight if you are on business.

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Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London