£46 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 22/7. 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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Everything you should know

Cheapest return fare
£115
Overall average: £209
British Airways
Wed 11/3Sat 21/3
SOF - LHR • Direct
Cheapest direct flights
£115
Typical prices: £104-£339
British Airways
Wed 11/3Wed 18/3
SOF - LHR • Direct
Top airlines
Bulgaria Air
Most flights • 5 per week
Bulgaria Air
Best reviews • 8.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 22% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
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, 11 Mar - Sat, 21 Mar
British Airways Logo
21:00 - 22:30
SOF
-
LHR
3h 30mdirect
British Airways Logo
06:05 - 11:15
LHR
-
SOF
3h 10mdirect
£115British Airways
Fri, 13 Mar - Sun, 15 Mar
Aegean Airlines Logo
20:20 - 21:15
SOF
-
LHR
26h 55m
1 stop
Aegean Airlines Logo
22:15 - 09:35
LHR
-
SOF
9h 20m
1 stop
£118Aegean Airlines
Fri, 13 Mar - Fri, 20 Mar
Aegean Airlines Logo
20:20 - 11:10
SOF
-
LHR
16h 50m
1 stop
Aegean Airlines Logo
19:00 - 16:25
LHR
-
SOF
19h 25m
1 stop
£120Aegean Airlines
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
15:15 - 21:15
SOF
-
LHR
8h 00m
1 stop
Multiple Airlines Logo
06:05 - 11:15
LHR
-
SOF
3h 10mdirect
£121Multiple Airlines
Sat, 7 Mar - Wed, 11 Mar
Air Serbia Logo
05:00 - 12:20
SOF
-
LHR
9h 20m
1 stop
Air Serbia Logo
13:20 - 15:30
LHR
-
SOF
24h 10m
1 stop
£124Air Serbia
Sat, 7 Mar - Wed, 11 Mar
Air Serbia Logo
05:00 - 12:20
SOF
-
LHR
9h 20m
1 stop
Air Serbia Logo
13:20 - 03:05
LHR
-
SOF
11h 45m
1 stop
£125Air Serbia
Fri, 13 Mar - Fri, 20 Mar
Austrian Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m
1 stop
Austrian Airlines Logo
19:25 - 15:15
LHR
-
VAR
17h 50m
1 stop
£156Austrian Airlines
Sun, 15 Mar - Sun, 22 Mar
Austrian Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m
1 stop
Austrian Airlines Logo
06:00 - 15:15
LHR
-
VAR
7h 15m
1 stop
£158Austrian Airlines
Fri, 13 Mar - Fri, 20 Mar
Lufthansa Logo
16:00 - 21:00
VAR
-
LHR
7h 00m
2 stops
Lufthansa Logo
19:15 - 15:15
LHR
-
VAR
18h 00m
2 stops
£202Lufthansa
Sun, 15 Mar - Sun, 22 Mar
Lufthansa Logo
16:00 - 21:00
VAR
-
LHR
7h 00m
2 stops
Lufthansa Logo
06:30 - 15:15
LHR
-
VAR
6h 45m
2 stops
£211Lufthansa
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 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 February, where tickets cost £146 on average for one-way flights. On the other hand, the most expensive months are September and August, where the average cost of tickets from Bulgaria is £225 and £217 respectively. For return trips, the best month to travel is February with an average price of £146.

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 £92 one-way - £124 return.

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

Low seasonOctober
Cheapest flight£46
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 22% 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 £126. The cheapest price found on KAYAK in the last 2 weeks cost £70 and departed from Sofia Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Thursday where tickets can be as cheap as £101. On the other hand, the most expensive day to fly is Sunday, where prices are £194 on average.

  • 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.

  • 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 flights cost £111 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 £189.

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 £162
  • 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.
8.3
Bulgaria AirOverall score based on 59 reviews
7.8Food
8.2Boarding
8.0Comfort
8.6Crew
7.1Entertainment
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 ….

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."

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!

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

Although I was flying in business class, the feeling, comfort and in general the whole experience was like flying in a low cost airline. Boarding by. Us, no priority to business class passengers. The plane was very old and looked poor and rely old. Seats do not recline. Space between rows very small. No separation between business class and economy. No separate toilet for business class passengers. Of course no entertainment, no WiFi and no charging. Very bad experience

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

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.

This review if for American Airlines. From London to LA, British Airways customers flew American Airlines and there was a small incident on the plane with a customer that was sitting next to me. She had a gluten free meal which she selected online. The flight attendant brought her food and both times, it contained gluten (bread, cracker) and by the second time, the customer mentioned about the issue to the flight attendant because she is highly allergic to gluten. Customer was very gentle and just wanted to note that both her meals contained gluten on the tray. The whole situation could have ended really well if flight attendant just apologized and mentioned she would relay the message to the responsible party. Instead, she entered defensive mode and started making some BS excuse about how the cracker that was supposed to be mine, fell onto her tray instead. Mind me, I already had that cracker on my tray. I doubt I would be given two. Also, she mentioned that the bread from the previous meal was gluten free. REALLY? I ate that bread and it tasted like it had PLENTY of gluten. The whole situation was handled so poorly, not only by that one flight attendant, but by 2 others. The reason I intervened is because the customer sitting next to me was tearing and all she did was mention the mistake which could have cause her health great damage, and instead she received attacks and excuses. AA, you should train your employees how to better handle situations like this. A 'well, I don't see why this problem is a big deal since you (the customer with allergies) read the ingredients and avoided eating the cracker that "accidentally fell" from the tray of the customer sitting next to you,' should not have been coming out of a flight attendant's mouth.

Continue to be disappointed that the “food” for “ordinary” fare paying passengers is poor - on this flight it consisted of a packet of two biscuits and a small bottle of water … not even offered a “free” cup of tea or coffee. Suggest a review of the “menu” and offer a hot drink to ordinary (economy class) passengers. On this route there are many far cheaper flights available - paying almost £200 for a flight that could have been bought for less than half this price should have some “perks” - offering hot drinks to all passengers would, in my opinion, be a cost effective measure which would improve the image of British Airways.

Aircraft was comfortable even in economy, clean. Entertainment screens were excellent and. Hoice was very good. Good was just ok. Crew was not bad.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

I was unable to board the flight because I was unable to acquire a visa , Brexit changed my ability to get an ETA, I’m a Trinidad citizen and it takes weeks to get a visa

The issue was not with BA it was with the link yoiu sent fopr booking the flight

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

BA flight from London NY had old BC configuration with 2+3+2 seating with open seats which was not comfortable and lacked privacy

Flew business- but plane was dirty, food horrendous. Too many business class seats diluted service levels overall.

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
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Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London