£52 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 7/12. 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

Tue, 7 Jul - Tue, 14 Jul
LOT Logo
18:45 - 22:00
SOF
-
LHR
5h 15m
1 stop
LOT Logo
06:30 - 13:50
LHR
-
SOF
5h 20m
1 stop
£156LOT
Wed, 8 Jul - Wed, 15 Jul
LOT Logo
18:45 - 17:10
SOF
-
LHR
24h 25m
1 stop
LOT Logo
06:30 - 01:45
LHR
-
SOF
17h 15m
1 stop
£158LOT
Wed, 8 Jul - Wed, 15 Jul
LOT Logo
05:30 - 22:00
SOF
-
LHR
18h 30m
1 stop
LOT Logo
06:30 - 01:45
LHR
-
SOF
17h 15m
1 stop
£162LOT
Mon, 6 Jul - Mon, 13 Jul
LOT Logo
05:30 - 22:00
SOF
-
LHR
18h 30m
1 stop
LOT Logo
06:30 - 13:50
LHR
-
SOF
5h 20m
1 stop
£163LOT
Sun, 5 Jul - Sat, 11 Jul
SWISS Logo
10:25 - 07:55
VAR
-
LHR
23h 30m
1 stop
SWISS Logo
13:50 - 09:40
LHR
-
VAR
17h 50m
1 stop
£203SWISS
Thu, 20 Aug - Sun, 30 Aug
Air Serbia Logo
04:15 - 12:30
VAR
-
LHR
10h 15m
1 stop
Air Serbia Logo
19:25 - 03:25
LHR
-
VAR
6h 00m
1 stop
£204Air Serbia
Tue, 1 Sep - Wed, 2 Sep
Multiple Airlines Logo
13:30 - 18:05
VAR
-
LHR
6h 35m
1 stop
Multiple Airlines Logo
19:25 - 11:35
LHR
-
VAR
14h 10m
1 stop
£212Multiple Airlines
Thu, 20 Aug - Thu, 27 Aug
Air Serbia Logo
04:15 - 12:30
VAR
-
LHR
10h 15m
1 stop
Air Serbia Logo
13:30 - 03:25
LHR
-
VAR
11h 55m
1 stop
£212Air Serbia
Sat, 25 Jul - Sat, 1 Aug
Multiple Airlines Logo
16:00 - 21:40
VAR
-
LHR
7h 40m
1 stop
Multiple Airlines Logo
20:05 - 09:40
LHR
-
VAR
11h 35m
1 stop
£215Multiple Airlines
Sun, 26 Jul - Sun, 9 Aug
Bulgaria Air Logo
22:15 - 16:45
BOJ
-
LHR
20h 30m
1 stop
Bulgaria Air Logo
08:55 - 21:35
LHR
-
BOJ
10h 40m
1 stop
£342Bulgaria 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 Sunday where round-trip tickets can be as cheap as £140. On the other hand, the most expensive day to fly is Friday, where round-trip prices are £211 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 round-trip 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 November, where tickets cost £40 on average for return flights. On the other hand, the most expensive months are June and October, where the average cost of tickets from Bulgaria is £221 and £177 respectively. For one-way flights, the best month to travel is July with an average price of £14.

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 £145 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 £194.

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 £216 return.

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

Low seasonJune
Cheapest flight£52
Best time to beat the crowds but there is an average 22% 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 £185. The cheapest price found on KAYAK in the last 2 weeks cost £67 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 £161
  • 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
8.1Comfort
7.8Food
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 ….

All good, professional service, and arrived close to on time.

Service and food was amazing. Aircraft configuration is weird - stare at a stranger at take off and landing, during flight someone is crawling over your seat. It was lame.

BA Canceled this flight and put us on a flight leaving Aberdeen at 8:00 PM, delaying our return to the states by a full day. The cancellation caused us expenses in both Aberdeen and London and BA was completely unhelpful on the phone and at the airport.

First time flying with them! Loved it! Specially the schedule from Miami and being able to come back directly to New Orleans :)

They lost my luggage on my way to Namibia (I was unable to review that flight as I was in the bush/off line) It took 3 days to get my bag and I had to pay $375.00 to have it transported to my location as it was over 100 Kilometers from that Airport and the local Airlink carrier would not got that far.

Unable to check in online until the morning of flight. No early baggage check available nor any BA personnel present. Poor customer service.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

We waited all day on a delayed plane. More than a 6 hour delay which caused us to miss all connections and spend a second full day traveling. Also missed a day of work that i hadn’t planned on.

I liked the air hostesses, but no wifi was available for flight. my original flight was canceled and rebooking was difficult and no reason was given for cancellation. Business class cabin was nice and spacious.

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

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London