£72 Find Cheap Flights from London Heathrow Airport to Bulgaria

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Bulgaria departing on 21/3. 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

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Cheap Flights from Heathrow to Bulgaria

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sofia
Sofiadirect£119
Burgas
Burgas1 stop£165
Varna
Varna1 stop£163
Sofia
Sofiadirect£119
Burgas
Burgas1 stop£165
Varna
Varna1 stop£163

Book Cheap Heathrow to Bulgaria Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Bulgaria 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 Heathrow to Bulgaria

Wed, 22 Apr - Wed, 29 Apr
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
£119British Airways
Wed, 22 Apr - Mon, 27 Apr
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
British Airways Logo
20:10 - 21:30
SOF
-
LHR
3h 20mdirect
£129British Airways
Sat, 2 May - Thu, 14 May
LOT Logo
06:30 - 13:55
LHR
-
SOF
5h 25m
1 stop
LOT Logo
14:35 - 22:00
SOF
-
LHR
9h 25m
1 stop
£132LOT
Sat, 11 Apr - Sat, 25 Apr
LOT Logo
06:30 - 18:00
LHR
-
SOF
9h 30m
1 stop
LOT Logo
05:25 - 22:00
SOF
-
LHR
18h 35m
1 stop
£135LOT
Wed, 22 Apr - Sat, 25 Apr
LOT Logo
06:30 - 18:00
LHR
-
SOF
9h 30m
1 stop
LOT Logo
18:45 - 09:20
SOF
-
LHR
16h 35m
1 stop
£136LOT
Fri, 10 Apr - Sat, 25 Apr
Multiple Airlines Logo
22:15 - 15:50
LHR
-
SOF
15h 35m
1 stop
Multiple Airlines Logo
16:05 - 19:05
SOF
-
LHR
5h 00m
1 stop
£139Multiple Airlines
Fri, 10 Apr - Fri, 24 Apr
Multiple Airlines Logo
22:15 - 15:50
LHR
-
SOF
15h 35m
1 stop
Multiple Airlines Logo
15:20 - 16:45
SOF
-
LHR
3h 25mdirect
£141Multiple Airlines
Thu, 14 May - Mon, 18 May
Lufthansa Logo
19:10 - 09:00
LHR
-
VAR
11h 50m
1 stop
Lufthansa Logo
12:15 - 19:40
VAR
-
LHR
9h 25m
1 stop
£163Lufthansa
Sat, 6 Jun - Sat, 13 Jun
Austrian Airlines Logo
06:00 - 18:35
LHR
-
BOJ
10h 35m
1 stop
Austrian Airlines Logo
19:20 - 08:20
BOJ
-
LHR
15h 00m
1 stop
£165Austrian Airlines
Sat, 13 Jun - Sat, 20 Jun
Austrian Airlines Logo
06:00 - 18:35
LHR
-
BOJ
10h 35m
1 stop
Austrian Airlines Logo
19:20 - 08:20
BOJ
-
LHR
15h 00m
1 stop
£219Austrian Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Bulgaria flights

Get data-powered insights and trends into flights from Heathrow to Bulgaria to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Bulgaria flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Bulgaria from London Heathrow Airport found in the last 72 hours was to Sofia, at £135 return. The most popular route is from London Heathrow Airport (LHR) to Sofia (SOF), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £135.

What is the cheapest time of day to fly to Bulgaria?

The average price for all round-trip flights from London Heathrow Airport to Bulgaria depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Bulgaria is generally in the afternoon, when retur flights cost £209 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Bulgaria is generally in the evening, which is peak travel time and where the average cost of a ticket is £238.

Can I save money by flying with a stopover from London Heathrow Airport to Bulgaria?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £223, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Bulgaria, 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 from London Heathrow Airport to Bulgaria is November, when tickets cost £144 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £281 and £266 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Bulgaria?

The average price of all round-trip flights from London Heathrow Airport to Bulgaria clicked on KAYAK for each day over the last 12 months.

When flying from London Heathrow Airport to Bulgaria, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

How far in advance should I book a flight from London Heathrow Airport to Bulgaria?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Bulgaria, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from London Heathrow Airport to Bulgaria, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

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

Low seasonJanuary
Cheapest flight£58
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from London Heathrow Airport to Sofia

FAQs - booking Bulgaria flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Bulgaria?

    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 from London Heathrow Airport to Bulgaria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Bulgaria?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Bulgaria is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Bulgaria?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Bulgaria 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 from London Heathrow Airport to Bulgaria?

    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 from London Heathrow Airport to Bulgaria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Heathrow to Bulgaria

 
Need help choosing which airline to fly with from Heathrow to Bulgaria? 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
7.8Food
8.1Comfort
7.1Entertainment
8.7Crew
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 ….

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Most of the crew members were rude, flight arrived late and we missed our connecting flight, they damaged my friends suitcase so badly that two wheels had been destroyed.

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Loved the courtesy and punctuality. Very professional and most importantly on time.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

My layover in Vienna was supposed to be 35 minutes but because my flight was canceled I had to wait in the airport for an additional 8 hours.

The flight was delayed for 30 minutes with no apparent reason. There is no entertainment at all, and no USB or electric outlets for charging your phone or tablet.

My flight was canceled and even though I paid אם KAYAK you didn't even answer me and obviously didn't refund my money. I will never buy a ticket through you again.

Accessibility serious problems in Viena airport making it seriousely difficult in in-between gates and boarding travel. Pretens of breakfast and service care in the economy pathetic.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

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

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

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

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

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

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

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

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

Checking in took very long for whatever reason. Flight comfort these days is always poor so… Crew was great thought!

Not to bad but it was hard changing my seat

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

Took a long time to board. A long wait at the but taking us to the plain

The plane was late (as was my flight out from Birmingham the day before)

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

The plane delay due to a poor judgement of the pilot. It was the only flight that got delay due to fog.

The flight was delayed by an hour. Made the connection uncomfortably tight.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

You will pay for everything and feels like the airplane is old

The luggage problem I previously mentioned was actually this flight

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

Everything you need to know for your flight from Heathrow to Bulgaria

Information on your arrival and departure airports