£43 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 28/3. 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
£117
Overall average: £151
British Airways
Wed 25/2Sun 1/3
SOF - LHR • Direct
Cheapest one-way flight
£43
Typical prices: £64-£126
British Airways
Sat 28/3
SOF - LHR • Direct
Top airlines
Bulgaria Air
Most flights • 5 per week
Bulgaria Air
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 23% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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, 25 Feb - Sun, 1 Mar
British Airways Logo
21:00 - 22:30
SOF
-
LHR
3h 30mdirect
British Airways Logo
07:50 - 13:00
LHR
-
SOF
3h 10mdirect
£117British Airways
Sat, 24 Jan - Sun, 1 Feb
Air Serbia Logo
05:00 - 12:20
SOF
-
LHR
9h 20m1 stop
Air Serbia Logo
13:20 - 03:05
LHR
-
SOF
11h 45m1 stop
£125Air Serbia
Sun, 22 Mar - Wed, 25 Mar
British Airways Logo
14:30 - 16:00
SOF
-
LHR
3h 30mdirect
British Airways Logo
14:55 - 20:10
LHR
-
SOF
3h 15mdirect
£126British Airways
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
17:25 - 18:55
SOF
-
LHR
3h 30mdirect
Multiple Airlines Logo
22:15 - 19:30
LHR
-
SOF
19h 15m1 stop
£130Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
16:00 - 12:20
SOF
-
LHR
22h 20m1 stop
Multiple Airlines Logo
22:15 - 19:30
LHR
-
SOF
19h 15m1 stop
£137Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
Aegean Airlines Logo
11:15 - 15:30
SOF
-
LHR
6h 15m1 stop
Aegean Airlines Logo
22:15 - 19:30
LHR
-
SOF
19h 15m1 stop
£139Aegean Airlines
Thu, 22 Jan - Wed, 28 Jan
Austrian Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m1 stop
Austrian Airlines Logo
06:00 - 15:15
LHR
-
VAR
7h 15m1 stop
£145Austrian Airlines
Sun, 11 Jan - Mon, 19 Jan
Austrian Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m1 stop
Austrian Airlines Logo
06:00 - 15:15
LHR
-
VAR
7h 15m1 stop
£163Austrian Airlines
Thu, 22 Jan - Wed, 28 Jan
Lufthansa Logo
16:00 - 22:55
VAR
-
LHR
8h 55m2 stops
Lufthansa Logo
20:15 - 15:15
LHR
-
VAR
17h 00m2 stops
£195Lufthansa
Sun, 11 Jan - Mon, 19 Jan
Lufthansa Logo
16:00 - 10:25
VAR
-
LHR
20h 25m2 stops
Lufthansa Logo
06:30 - 15:15
LHR
-
VAR
6h 45m2 stops
£221Lufthansa
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 £151 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 £232 and £224 respectively. For return trips, the best month to travel is February with an average price of £151.

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 £81 one-way - £89 return.

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

Low seasonOctober
Cheapest flight£43
Best time to beat the crowds (1% less expensive on average)
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

  • 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 £117. The cheapest price found on KAYAK in the last 2 weeks cost £47 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 £60. On the other hand, the most expensive day to fly is Sunday, where prices are £200 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 £114 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 £200.

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 £85
  • 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.
8.1
Bulgaria AirOverall score based on 59 reviews
7.7Food
8.2Boarding
8.5Crew
7.8Comfort
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."

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.

Boarding was delayed for an unknown reason for more than an hour. While the airplane was at the gate, the boarding time was moved by 10-20 minutes every 15 minutes. No entertainment on the plane.

During the flight, the fleas biting me in the plane.

Delay rushed to the next plane and bags didn’t arrive in chicago

Boarding could've been improved a bit, the rest is excellent.

Agents helping disable person doesnt know connections to Poland and after 9 agents helping and 2hours ,we made it to proper terminal. Polish Dreamliner its Polish nightmare liner with so narrow seats and no room under front seat for bag and feet,in economy class.To upgrade, to higher standart cost an arm and leg ,even there are empty seats No good experience overall

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

The update about flights and the terminal changes information was great.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Not only were the aircrafts spacious, but the crew was friendly and efficient. I was so gracious for the included meals on the longer flight (8+ hours).

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

The check-in baggage belt was broken (which is understandable) but what was surprising is they would check you in, give a baggage tag and then you have to drag the baggage to a different counter at the end of airport. No vegetarian option in in-flight meal. British Airways remains the worst big name airlines and always my last option while booking.

Decrepit planes, poor business class layout designed to maximize revenue, no decent movie selection.

Entertainment did not work from DC to London. Was not able to check in online during my return journey from Mumbai to London. Food was good!

The to flight was excellent but the return flight the seats seemed not cushioning enough.

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
Swindon
Northampton
Slough
Winchester
Croydon
Stansted
Poole
Folkestone
Chichester
Maidstone
Salisbury
Colchester
Chelmsford
Crawley

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London