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Cheap flights from Bulgaria to London Heathrow Airport from £51

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — LHR
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bulgaria to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Bulgaria to Heathrow
Explore the most affordable flight options available from Bulgaria to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Wed 6/521:25
SOF
-
LHR
Nonstop3h 20m
British Airways
Wed 13/515:10
LHR
-
SOF
Nonstop3h 20m
British Airways
Deal found 27/3£121
Mon 11/520:10
SOF
-
LHR
Nonstop3h 20m
British Airways
Sun 17/514:55
LHR
-
SOF
Nonstop3h 15m
British Airways
Deal found 27/3£134
Wed 22/415:20
SOF
-
LHR
Nonstop3h 25m
Bulgaria Air
Sun 26/408:55
LHR
-
SOF
Nonstop3h 10m
Bulgaria Air
Deal found 27/3£137
Fri 24/415:20
SOF
-
LHR
Nonstop3h 25m
Bulgaria Air
Sun 26/408:55
LHR
-
SOF
Nonstop3h 10m
Bulgaria Air
Deal found 25/3£139
Wed 1/421:25
SOF
-
LHR
Nonstop3h 20m
British Airways
Sun 12/414:55
LHR
-
SOF
Nonstop3h 15m
British Airways
Deal found 25/3£139
Thu 7/505:00
SOF
-
LHR
1 stop9h 30m
Air Serbia
Tue 12/513:30
LHR
-
SOF
1 stop24h 05m
Air Serbia
Deal found 26/3£142
Tue 5/516:05
SOF
-
LHR
1 stop22h 25m
Multiple Airlines
Mon 18/517:55
LHR
-
SOF
Nonstop3h 20m
Multiple Airlines
Deal found 25/3£144
Mon 14/1209:35
VAR
-
LHR
1 stop8h 05m
Multiple Airlines
Sun 10/110:30
LHR
-
VAR
1 stop20h 30m
Multiple Airlines
Deal found 27/3£181
Thu 23/416:00
VAR
-
LHR
1 stop7h 40m
Multiple Airlines
Thu 30/420:25
LHR
-
VAR
1 stop10h 35m
Multiple Airlines
Deal found 26/3£187
Fri 8/516:00
VAR
-
LHR
1 stop7h 40m
Multiple Airlines
Thu 14/519:10
LHR
-
VAR
1 stop11h 50m
Multiple Airlines
Deal found 25/3£190
Sat 2/509:20
VAR
-
LHR
1 stop9h 20m
Lufthansa
Wed 6/519:30
LHR
-
VAR
1 stop11h 05m
Lufthansa
Deal found 26/3£193
Wed 16/1209:35
VAR
-
LHR
1 stop8h 05m
Multiple Airlines
Sun 10/110:30
LHR
-
VAR
1 stop20h 30m
Multiple Airlines
Deal found 27/3£198

Find flight deals from Bulgaria to Heathrow

Keep the following information in mind while searching for Bulgaria to Heathrow flight deals. Data was last updated 30 March 2026.

Round-trip from

£121

One-way from

£51

Popular in

July

Cheapest in

November

Average price

£72

Good round-trip deal

£188 or less

Good one-way deal

£66 or less
British Airways
  • British Airways
  • 6/5-13/5
  • Nonstop
  • 6h 40m total
  • Bulgaria to London
Search Deals
British Airways
  • British Airways
  • 6/7
  • Nonstop
  • 3h 20m total
  • Bulgaria to London
Search Deals
Highest demand for flights based on searches. 33% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Bulgaria to London Heathrow.
Search Deals
Price to beat on a one-way flight from Bulgaria to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bulgaria to Heathrow 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 30 March 2026.
Use the filters below to find and compare flights from Bulgaria to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 25/4

05:00-19:05

1 stop16h 05m

London Heathrow

Tue 28/4

13:30-15:35

1 stop24h 05m

£161

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Tue 26/5

16:05-12:30

1 stop22h 25m

London Heathrow

Mon 1/6

13:30-15:35

1 stop24h 05m

£172

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Tue 26/5

16:05-12:30

1 stop22h 25m

London Heathrow

Fri 16/10

13:30-15:35

1 stop24h 05m

£172

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 2/5

12:25-21:40

1 stop11h 15m

London Heathrow

Tue 5/5

09:05-23:55

1 stop12h 50m

£173

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 13/7

19:25-22:40

1 stop5h 15m

London Heathrow

Fri 17/7

07:30-18:25

1 stop8h 55m

£187

VarnaLondon

VAR - LHR

VARLHR

Varna

Fri 8/5

16:00-21:40

1 stop7h 40m

London Heathrow

Thu 14/5

19:10-09:00

1 stop11h 50m

£190

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 15/6

16:05-12:30

1 stop22h 25m

London Heathrow

Wed 17/6

13:30-15:35

1 stop24h 05m

£191

VarnaLondon

VAR - LHR

VARLHR

Varna

Sat 2/5

09:20-16:40

1 stop9h 20m

London Heathrow

Wed 6/5

19:30-08:35

1 stop11h 05m

£193

VarnaLondon

VAR - LHR

VARLHR

Varna

Fri 8/5

09:45-17:40

2 stops9h 55m

London Heathrow

Thu 14/5

20:25-09:00

1 stop10h 35m

£198

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Fri 29/5

05:00-12:30

1 stop9h 30m

London Heathrow

Tue 20/10

13:30-15:35

1 stop24h 05m

£210

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 50 resultsSorted by cheapest first
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5

Best time to book a flight from Bulgaria to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Bulgaria 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 Bulgaria to London Heathrow Airport

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

Currently, November is the cheapest month in which you can book a flight from Bulgaria to London Heathrow Airport (average of £54). Flying from Bulgaria to London Heathrow Airport in June is currently the most expensive (average of £204). 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 BG to LHR?

Find hourly flight availability from Bulgaria to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 March 2026.

It’s optimal to fly from Bulgaria to London Heathrow Airport in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the morning.

How often are flights from Bulgaria to London delayed?

About 16% of weekly flights between Bulgaria and London have experienced delays in the past year, with the average delay time being 99 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

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

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

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

Over the past year, Bulgaria Air have had the lowest number of delays on this route, with just 13% of flights being delayed.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 March 2026.
Read reviews from past customers who have flown with LOT and British Airways from Bulgaria to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.5
Good
1,179 reviews
Check prices

Overall

7.5

Boarding

7.5

Crew

8.2

Food

7.1

Comfort

7.4

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented
LOT
7.5
Good
1,179 reviews
LOT
7.5
Good
1,179 reviews
Check prices

Overall

7.5

Boarding

7.5

Crew

8.2

Food

7.1

Comfort

7.4

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented
British Airways
6.7
Okay
7,836 reviews
LOT
7.5
Good
1,179 reviews
Check prices

Overall

7.5

Boarding

7.5

Crew

8.2

Food

7.1

Comfort

7.4

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Related info for your journey

Find useful and relevant information for your journey from Bulgaria to Heathrow. 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 Bulgaria to London Heathrow Airport?

    Airlines like Air Serbia, Austrian Airlines, and Lufthansa fly from Bulgaria to London Heathrow Airport in about 5h 15m. The time it takes to get you to your destination can typically vary by up to 10h 50m. There are 1267 mi between Bulgaria and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapet airlines for a one-way flight from Bulgaria to London Heathrow Airport are Air Serbia (£52), British Airways (£53), and Bulgaria Air (£61).

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

    The most popular flight routes from Bulgaria to London Heathrow Airport are Sofia - London Heathrow, Varna - London Heathrow and Bourgas - London Heathrow.

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

    Looking for the cheapest flight from Bulgaria to London Heathrow Airport? While on average our users pay £174, our data indicates the cheapest price to be £52. The most popular route (Sofia - London Heathrow), is priced around £121.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bulgaria to Heathrow 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 Bulgaria to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Bulgaria to London Heathrow Airport (average of £54). Flying from Bulgaria to London Heathrow Airport in June is currently the most expensive (average of £204). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Bedford
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bulgaria to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Bulgaria to Heathrow

Discover the top 3 airlines that operate flights from Bulgaria to Heathrow. 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 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£90Average£144FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Bulgaria AirCheapest£97Average£201FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights
LOTCheapest£126Average£175FlexibilityNo cancel feeOn-time81%
Search LOT 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 Bulgaria to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Bulgaria today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bulgaria to Heathrow.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Bulgaria to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Bulgaria today and book when prices fit your budget.

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