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Cheap flights from London Heathrow Airport to Bulgaria from £70

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
16 Aug — 23 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Bulgaria

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Bulgaria
Explore the most affordable flight options available from Heathrow to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 July 2026.

Sun 4/1006:30
LHR
-
SOF
1 stop9h 30m
LOT
Tue 6/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 16/7£117
Wed 30/910:20
LHR
-
SOF
1 stop5h 40m
LOT
Wed 14/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 16/7£125
Tue 13/1010:20
LHR
-
SOF
1 stop25h 35m
LOT
Wed 21/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 15/7£127
Thu 1/1010:20
LHR
-
SOF
1 stop5h 40m
LOT
Sun 11/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 16/7£137
Sat 26/906:30
LHR
-
SOF
1 stop5h 25m
LOT
Sat 3/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 17/7£138
Tue 13/1010:20
LHR
-
SOF
1 stop25h 35m
LOT
Tue 27/1018:35
SOF
-
LHR
1 stop5h 25m
LOT
Deal found 14/7£140
Fri 2/1010:20
LHR
-
SOF
1 stop5h 40m
LOT
Sun 4/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 16/7£141
Mon 5/1018:10
LHR
-
SOF
1 stop17h 40m
LOT
Mon 12/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 13/7£141
Tue 13/1018:10
LHR
-
SOF
1 stop17h 45m
LOT
Fri 16/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 13/7£142
Mon 12/1006:30
LHR
-
SOF
1 stop9h 30m
LOT
Sat 17/1014:35
SOF
-
LHR
1 stop20h 45m
LOT
Deal found 13/7£143
Sat 17/1006:30
LHR
-
SOF
1 stop5h 25m
LOT
Wed 21/1018:45
SOF
-
LHR
1 stop5h 15m
LOT
Deal found 15/7£148
Wed 9/919:30
LHR
-
BOJ
1 stop17h 45m
Austrian Airlines
Sat 19/911:20
BOJ
-
LHR
1 stop23h 00m
Austrian Airlines
Deal found 14/7£181

Find flight deals from Heathrow to Bulgaria

Keep the following information in mind while searching for Heathrow to Bulgaria flight deals. Data was last updated 17 July 2026.

Round-trip from

£117

One-way from

£70

Popular in

December

Cheapest in

November

Average price

£222

Good round-trip deal

£241 or less

Good one-way deal

£143 or less
LOT
  • LOT
  • 4/10-6/10
  • 2 total stops
  • 14h 45m total
  • London to Bulgaria
Search Deals
15/11
  • 15/11
  • 1 total stop
  • 11h 40m total
  • London to Bulgaria
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Bulgaria.
Search Deals
Price to beat on a one-way flight from London Heathrow to Bulgaria.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Bulgaria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 6/1

13:20-03:00

1 stop11h 40m

Sofia

Sun 10/1

16:05-12:25

1 stop22h 20m

£173
Fastest return journey

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 24/8

14:05-19:20

Nonstop3h 15m

Sofia

Wed 23/9

21:25-22:45

Nonstop3h 20m

£190

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 5/8

09:05-23:55

1 stop12h 50m

Sofia

Mon 10/8

18:55-08:20

1 stop15h 25m

£198

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 3/9

06:00-18:10

1 stop10h 10m

Sofia

Mon 7/9

18:55-08:20

1 stop15h 25m

£204

LondonBurgas

LHR - BOJ

LHRBOJ

London Heathrow

Sat 5/9

19:10-09:05

1 stop11h 55m

Bourgas

Tue 15/9

13:05-21:40

1 stop10h 35m

£211

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 14/10

20:05-12:10

2 stops14h 05m

Sofia

Wed 28/10

14:00-21:40

2 stops9h 40m

£232

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 14/9

06:00-14:55

1 stop6h 55m

Sofia

Tue 15/9

13:05-21:30

2 stops10h 25m

£235

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Mon 17/8

20:05-12:15

1 stop14h 10m

Sofia

Fri 28/8

15:50-07:55

1 stop18h 05m

£235

LondonBurgas

LHR - BOJ

LHRBOJ

London Heathrow

Mon 14/9

19:30-12:20

1 stop14h 50m

Bourgas

Fri 18/9

13:05-21:40

1 stop10h 35m

£244

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 18/9

20:05-12:55

1 stop14h 50m

Sofia

Fri 25/9

15:50-18:30

2 stops28h 40m

£246

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Bulgaria

What is the cheapest month to book a flight from London Heathrow Airport to Bulgaria?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Bulgaria (average of £43). Flying from London Heathrow Airport to Bulgaria in August is currently the most expensive (average of £142). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to BG?

Find hourly flight availability from Heathrow to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 July 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 12% on flights from London Heathrow Airport to Bulgaria by exploring options for tickets in the evening.

How often are flights from London to Bulgaria delayed?

About 11% of weekly flights between London and Bulgaria have experienced delays in the past year, with the average delay time being 116 minutes.

What is the most punctual flight time for London to Bulgaria flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Bulgaria flights?

Over the past year, Bulgaria Air have had the lowest number of delays on this route, with just 9% of flights being delayed.

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

The price you pay for your flight from London Heathrow Airport to Bulgaria may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated 17 July 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Bulgaria, such as Austrian Airlines,LOT, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
944 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Food

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Austrian Airlines
7.6
Good
944 reviews
Austrian Airlines
7.6
Good
944 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Food

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
LOT
7.5
Good
1,212 reviews
Austrian Airlines
7.6
Good
944 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Food

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
Lufthansa
6.8
Okay
8,139 reviews
Austrian Airlines
7.6
Good
944 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Food

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.
British Airways
6.7
Okay
8,121 reviews
Austrian Airlines
7.6
Good
944 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Boarding

7.6

Food

6.8

Reviews

1 / 20
10.0
Excellent

Edward,Jul 2026

YUL - VIE

I was upgraded to business class due to my bid because accepted. EXTREMELY polite and friendly service. Decent seats and good food. Highly recommend it. If you can arrange to travel on a day when not very many business people are traveling (e.g., Wednesday) then you can possibly get an excellent seat at a great price.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Bulgaria?

    There are many flights that can get you from London Heathrow Airport to Bulgaria in 3h 15m. Fly via Air Serbia, British Airways, or Austrian Airlines to get the fastest option. The distance from London Heathrow Airport to Bulgaria is about 1267 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to Bulgaria one-way?

    One-way options have recently been found by users for as low as £44 on Wizz Air. Other airlines that offer cheap prices include British Airways from £69 and Bulgaria Air from £85 one-way.

  • What are the most popular routes from London Heathrow Airport to Bulgaria?

    While some choose either London Heathrow - Varna or London Heathrow - Bourgas, London Heathrow - Sofia is the most popular route from London Heathrow Airport to Bulgaria.

  • What are the cheapest flights from London Heathrow Airport to Bulgaria?

    Looking at all options, your cheapest flight can be booked for £102. While the most popular route (London Heathrow - Sofia) can be booked for £147 on average, our data indicates £248 when flying from London Heathrow Airport to Bulgaria.

  • Can I find deals for flights from Heathrow to Bulgaria that include hotel bookings?

    Yes. In addition to deals on Heathrow to Bulgaria flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Bulgaria.

  • Can I find deals for business class flights from Heathrow to Bulgaria?

    Yes. Cheapflights offers flight deals from Heathrow to Bulgaria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Bulgaria?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Bulgaria (average of £43). Flying from London Heathrow Airport to Bulgaria in August is currently the most expensive (average of £142). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from Heathrow to Bulgaria

Discover the top 5 airlines that operate flights from Heathrow to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£112Average£192FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LOTCheapest£141Average£219FlexibilityNo cancel feeOn-time81%
Search LOT flights
Bulgaria AirCheapest£147Average£248FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights
LufthansaCheapest£152Average£218FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£160Average£250FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Bulgaria?

Cheapflights helps you search for flights from Heathrow to Bulgaria via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Bulgaria?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Bulgaria from Heathrow.

Can Cheapflights find flights from Heathrow to Bulgaria with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Bulgaria flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Bulgaria become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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