£75 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 15/6. 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
Sofia1 stop£140
Burgas
Burgas1 stop£182
Varna
Varna1 stop£179
Sofia
Sofia1 stop£140
Burgas
Burgas1 stop£182
Varna
Varna1 stop£179

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

Fri, 18 Sep - Mon, 21 Sep
LOT Logo
06:30 - 13:50
LHR
-
SOF
5h 20m
1 stop
LOT Logo
14:35 - 22:00
SOF
-
LHR
9h 25m
1 stop
£140LOT
Wed, 23 Sep - Wed, 30 Sep
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
£141British Airways
Wed, 23 Sep - Wed, 30 Sep
LOT Logo
06:30 - 13:55
LHR
-
SOF
5h 25m
1 stop
LOT Logo
05:25 - 09:20
SOF
-
LHR
5h 55m
1 stop
£145LOT
Thu, 24 Sep - Wed, 30 Sep
LOT Logo
06:30 - 18:00
LHR
-
SOF
9h 30m
1 stop
LOT Logo
05:25 - 17:10
SOF
-
LHR
13h 45m
1 stop
£145LOT
Thu, 10 Sep - Sat, 19 Sep
LOT Logo
06:30 - 18:00
LHR
-
SOF
9h 30m
1 stop
LOT Logo
18:45 - 09:20
SOF
-
LHR
16h 35m
1 stop
£149LOT
Thu, 22 Oct - Thu, 5 Nov
LOT Logo
06:30 - 01:55
LHR
-
SOF
17h 25m
1 stop
LOT Logo
18:35 - 22:00
SOF
-
LHR
5h 25m
1 stop
£150LOT
Tue, 13 Oct - Wed, 21 Oct
LOT Logo
18:10 - 01:55
LHR
-
SOF
5h 45m
1 stop
LOT Logo
18:45 - 22:00
SOF
-
LHR
5h 15m
1 stop
£151LOT
Sun, 14 Jun - Thu, 18 Jun
Multiple Airlines Logo
11:05 - 01:20
LHR
-
VAR
12h 15m
1 stop
Multiple Airlines Logo
04:25 - 12:30
VAR
-
LHR
10h 05m
1 stop
£179Multiple Airlines
Sat, 20 Jun - Tue, 30 Jun
Austrian Airlines Logo
06:00 - 18:35
LHR
-
BOJ
10h 35m
1 stop
Austrian Airlines Logo
13:05 - 08:20
BOJ
-
LHR
21h 15m
1 stop
£182Austrian Airlines
Sat, 20 Jun - Sat, 27 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
£202Austrian 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 £126 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 £126.

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 at night, when retur flights cost £207 on average. Morning departures are around 2% 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 £228.

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 £248, 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 February, when tickets cost £43 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is £141 and £126 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 Wednesdays 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 18 weeks before departure.

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

Low seasonOctober
Cheapest flight£75
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from London Heathrow Airport to Varna

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 60 reviews
8.1Comfort
7.8Food
7.2Entertainment
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 ….

Short flight. Bare bones and kinda seeming like an older plane. But got me there on time and that's what counts. Perfectly fine flight all the way from start to finish.

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.

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.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

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

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.

Flying business class saves you. Once you get out of the terminal and onto the plane, it’s fine. The traffic at the gate is a horror. No organization at all. The fact that Business class is promised early boarding is a myth.

I have flown over 2million miles. Great flight but bizarre boarding process. They must have paged half the passengers to the desk for documentation check before boarding anyone. Overall great value.

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.

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.

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

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.

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

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.

Boarding was by group and we had to take the bus. There were no elevators so had to walk down the stairs. It would help to have escalators or elevators. Note I had a special needs child and the gate crew was rushing us in. The bus was full but we were packed with no seats to sit.

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.

I paid extra for more comfort, didn't get any better than any other seat, tv didn't work on both seats, it'd

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!

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

Very friendly, service oriented and responsive crew. Very pleased with th service!

The crew was exceptionally polite and caring. The plane was comfortable. Great experience. Will fly more on Air India because of this experience.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

Small plane, only two bathrooms, no screen for videos. Not wide enough seats

The map feature on the display at the seat had challenges. The biggest issue was the flight had no WIFI. Most of the smaller planes now have free WIFI. American Airlines on the flight over had WIFI you could purchase. With 8-10 hours on a single flight, the ability to do work via WIFI is essential!!

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

Cramped seating but standard in all smaller aircrafts today no matter what airlines. Crew very helpful, friendly & attentive so makes up for that.

Wonderful business class flight in a lovely new plane with an excellent crew

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

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

Information on your arrival and departure airports