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Cheap flights from Bulgaria to London Heathrow Airport from £52

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — LHR
4 Jan — 11 Jan1
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 5 December 2025.

Sat 13/1212:05SOF - LHR
Nonstop3h 45mBritish Airways
Sat 10/106:05LHR - SOF
Nonstop3h 10mBritish Airways
Deal found 4/12£108
Mon 22/1217:25SOF - LHR
Nonstop3h 30mBritish Airways
Sat 3/106:05LHR - SOF
Nonstop3h 10mBritish Airways
Deal found 3/12£131
Sat 6/1212:05SOF - LHR
Nonstop3h 45mBritish Airways
Sun 7/1207:50LHR - SOF
Nonstop3h 10mBritish Airways
Deal found 4/12£136
Sun 21/1214:30SOF - LHR
Nonstop3h 30mBritish Airways
Sat 3/106:05LHR - SOF
Nonstop3h 10mBritish Airways
Deal found 3/12£138
Mon 22/1218:35SOF - LHR
1 stop5h 25mLOT
Wed 31/1206:30LHR - SOF
1 stop9h 20mLOT
Deal found 3/12£142
Mon 22/1218:35SOF - LHR
1 stop5h 25mLOT
Mon 5/106:30LHR - SOF
1 stop5h 20mLOT
Deal found 3/12£144
Tue 23/1218:35SOF - LHR
1 stop17h 00mLOT
Thu 8/106:30LHR - SOF
1 stop5h 20mLOT
Deal found 4/12£145
Mon 22/1218:35SOF - LHR
1 stop5h 25mLOT
Sat 3/106:30LHR - SOF
1 stop5h 20mLOT
Deal found 3/12£146
Mon 22/1218:35SOF - LHR
1 stop5h 25mLOT
Sun 4/106:30LHR - SOF
1 stop5h 20mLOT
Deal found 3/12£147
Mon 22/1218:35SOF - LHR
1 stop17h 00mLOT
Sat 27/1218:20LHR - SOF
1 stop17h 30mLOT
Deal found 3/12£148
Mon 22/1217:25SOF - LHR
Nonstop3h 30mBritish Airways
Sun 4/107:50LHR - SOF
Nonstop3h 10mBritish Airways
Deal found 3/12£148
Sat 20/1218:35SOF - LHR
1 stop5h 25mLOT
Sat 3/106:30LHR - SOF
1 stop5h 20mLOT
Deal found 3/12£151

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 5 December 2025.

Round-trip from

£131

One-way from

£52

Popular in

July

Cheapest in

October

Average price

£84

Good round-trip deal

£89 or less

Good one-way deal

£85 or less
British Airways
  • British Airways
  • 22/12-3/1
  • Nonstop
  • 6h 40m total
  • Bulgaria to London
Search Deals
Air Serbia
  • Air Serbia
  • 5/4
  • 1 total stop
  • 22h 30m total
  • Bulgaria to London
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 5 December 2025.
Use the filters below to find and compare flights from Bulgaria to London Heathrow Airport that are best for you.

Fly from

Bulgaria

Fly to

Heathrow

Route

Depart

Return

Price

VarnaLondon

VAR - LHR

VARLHR

Varna

Sun 15/2

11:20-18:40

1 stop9h 20m

London Heathrow

Sat 21/2

08:50-17:35

1 stop6h 45m

£136

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Wed 4/2

16:00-12:20

1 stop22h 20m

London Heathrow

Sat 7/2

13:20-15:30

1 stop24h 10m

£145

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 22/1

05:00-12:20

1 stop9h 20m

London Heathrow

Thu 29/1

13:20-03:05

1 stop11h 45m

£145

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Fri 30/1

16:05-12:20

1 stop22h 15m

London Heathrow

Mon 2/2

13:20-15:30

1 stop24h 10m

£145

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 22/12

17:25-18:55

Nonstop3h 30m

London Heathrow

Sun 4/1

07:50-13:00

Nonstop3h 10m

£148

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 19/2

05:00-12:20

1 stop9h 20m

London Heathrow

Sun 22/2

07:50-13:00

Nonstop3h 10m

£151

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 21/3

14:00-17:05

1 stop5h 05m

London Heathrow

Tue 24/3

06:35-13:15

1 stop4h 40m

£153

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 5/3

14:00-18:35

1 stop6h 35m

London Heathrow

Sun 8/3

07:40-18:20

1 stop8h 40m

£153

VarnaLondon

VAR - LHR

VARLHR

Varna

Sat 17/1

16:00-21:40

1 stop7h 40m

London Heathrow

Sat 24/1

06:00-15:15

1 stop7h 15m

£159

VarnaLondon

VAR - LHR

VARLHR

Varna

Sun 18/1

16:00-21:40

1 stop7h 40m

London Heathrow

Sun 25/1

06:00-15:15

1 stop7h 15m

£162

Flights are sorted by cheapest return flights first.

Deals found on 4/12

Showing 1-10 of 44 results
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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 £64). Flying from Bulgaria to London Heathrow Airport in October is currently the most expensive (average of £181). 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 5 December 2025.

It’s optimal to fly from Bulgaria to London Heathrow Airport in the evening. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight at midday.

How often are flights from Bulgaria to London delayed?

About 18% of weekly flights between Bulgaria and London have experienced delays in the past year, with the average delay time being 109 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 Thursday 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 16% 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 5 December 2025.
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
1,143 reviews
Check prices

Crew

8.2

Overall

7.5

Comfort

7.5

Food

7.1

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
LOT
7.5
Good
1,143 reviews
LOT
7.5
Good
1,143 reviews
Check prices

Crew

8.2

Overall

7.5

Comfort

7.5

Food

7.1

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
British Airways
6.7
Okay
7,562 reviews
LOT
7.5
Good
1,143 reviews
Check prices

Crew

8.2

Overall

7.5

Comfort

7.5

Food

7.1

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sept 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights

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, British Airways, and Austrian Airlines fly from Bulgaria to London Heathrow Airport in about 3h 30m. The time it takes to get you to your destination can typically vary by up to 18h 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 Bulgaria Air (£40), British Airways (£51), and Air Serbia (£67).

  • 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 most reliable airlines from Bulgaria to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Bulgaria to London Heathrow Airport consider choosing Bulgaria Air (82%), British Airways (80%) or American Airlines (70%) as they are the most reliable in getting you off to your destination on time.

  • 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 £132, our data indicates the cheapest price to be £40. The most popular route (Sofia - London Heathrow), is priced around £115.

  • 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 £64). Flying from Bulgaria to London Heathrow Airport in October is currently the most expensive (average of £181). 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
Croydon
Northampton
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Swindon
Romford
Bedford
Chichester

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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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£89Average£111FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LOTCheapest£125Average£174FlexibilityNo cancel feeOn-time81%
Search LOT flights
Bulgaria AirCheapest£152Average£201FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air 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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