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Cheap flights from Bulgaria to London Heathrow Airport from £56

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — LHR
11 Sep — 18 Sep1
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 12 August 2026.

Mon 7/1217:15 -
Nonstop3h 30m
Wed 9/1214:55 -
Nonstop3h 15m
Deal found 10/8£125
Tue 17/1116:00 -
1 stop22h 20m
Sat 21/1113:20 -
1 stop24h 10m
Deal found 11/8£134
Thu 31/1205:00 -
1 stop9h 20m
Wed 6/113:20 -
1 stop11h 40m
Deal found 10/8£135
Fri 4/1220:30 -
Nonstop3h 25m
Sun 6/1213:25 -
Nonstop3h 10m
Deal found 11/8£140
Wed 28/1018:40 -
1 stop5h 20m
Sat 31/1006:30 -
1 stop9h 25m
Deal found 10/8£144
Wed 28/1021:05 -
Nonstop3h 25m
Sun 1/1113:25 -
Nonstop3h 10m
Deal found 10/8£145
Wed 12/805:25 -
1 stop5h 55m
Mon 17/806:30 -
1 stop9h 30m
Deal found 9/8£146
Thu 1/1005:00 -
1 stop9h 30m
Sun 4/1013:30 -
1 stop11h 30m
Deal found 8/8£147
Sat 3/1018:45 -
1 stop16h 35m
Mon 5/1006:30 -
1 stop9h 30m
Deal found 11/8£150
Mon 10/818:45 -
1 stop5h 15m
Mon 17/806:30 -
1 stop9h 30m
Deal found 9/8£151
Mon 10/818:45 -
1 stop5h 15m
Wed 12/806:30 -
1 stop9h 30m
Deal found 9/8£153
Thu 8/1020:30 -
1 stop27h 10m
Thu 15/1006:00 -
1 stop7h 15m
Deal found 10/8£172

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 12 August 2026.

Round-trip from

£125

One-way from

£56

Popular in

August

Cheapest in

November

Average price

£187

Good round-trip deal

£113 or less

Good one-way deal

£107 or less
British Airways
  • British Airways
  • 7/12-9/12
  • Nonstop
  • 6h 45m total
  • Bulgaria to London
Search Deals
Air Serbia
  • Air Serbia
  • 6/11
  • 1 total stop
  • 9h 20m total
  • Bulgaria to London
Search Deals
Highest demand for flights based on searches. 37% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 12 August 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 Sofia - LHR London Heathrow

SOFLHR

Sofia

Fri 4/12

16:05-12:20

1 stop22h 15m

London Heathrow

Sun 6/12

13:20-15:30

1 stop24h 10m

£134

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Thu 29/10

05:00-12:20

1 stop9h 20m

London Heathrow

Sun 1/11

13:20-03:00

1 stop11h 40m

£164

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Thu 24/12

16:00-12:20

1 stop22h 20m

London Heathrow

Sun 27/12

13:20-15:30

1 stop24h 10m

£164

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Mon 28/9

18:55-08:20

1 stop15h 25m

London Heathrow

Mon 5/10

06:00-18:10

1 stop10h 10m

£173
Fastest return journey

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Sun 20/9

21:05-22:25

Nonstop3h 20m

London Heathrow

Sun 27/9

14:55-20:10

Nonstop3h 15m

£175

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Fri 30/10

20:30-21:55

Nonstop3h 25m

London Heathrow

Sun 8/11

13:25-18:35

Nonstop3h 10m

£184

SofiaLondon

SOF Sofia - LHR London Heathrow

SOFLHR

Sofia

Sun 18/10

16:00-12:30

1 stop22h 30m

London Heathrow

Tue 20/10

13:30-15:30

1 stop24h 00m

£194

VarnaLondon

VAR Varna - LHR London Heathrow

VARLHR

Varna

Mon 16/11

16:00-14:05

1 stop24h 05m

London Heathrow

Sun 22/11

06:00-15:15

1 stop7h 15m

£195

VarnaLondon

VAR Varna - LHR London Heathrow

VARLHR

Varna

Mon 5/10

04:15-12:30

1 stop10h 15m

London Heathrow

Sun 11/10

13:30-03:25

1 stop11h 55m

£207

VarnaLondon

VAR Varna - LHR London Heathrow

VARLHR

Varna

Wed 28/10

16:00-08:20

1 stop18h 20m

London Heathrow

Sun 1/11

06:00-15:15

1 stop7h 15m

£208

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 51 resultsSorted by cheapest first
1
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3
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6

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 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 12 August 2026.

It’s optimal to fly from Bulgaria to London Heathrow Airport in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight in the morning.

How often are flights from Bulgaria to London delayed?

About 13% 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 in the evening tend to experience delays more often.

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

Saturday tends to have the lowest number of delays on this route, whereas Friday 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 12 August 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
1,214 reviews
Check prices

Overall

7.5

Comfort

7.5

Food

7.2

Boarding

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
LOT
7.5
Good
1,214 reviews
LOT
7.5
Good
1,214 reviews
Check prices

Overall

7.5

Comfort

7.5

Food

7.2

Boarding

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
British Airways
6.7
Okay
8,159 reviews
LOT
7.5
Good
1,214 reviews
Check prices

Overall

7.5

Comfort

7.5

Food

7.2

Boarding

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .

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 British Airways fly from Bulgaria to London Heathrow Airport in about 3h 20m. The time it takes to get you to your destination can typically vary by up to 18h 55m. 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 British Airways (£51), Air Serbia (£51), and Bulgaria Air (£70).

  • 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, Bourgas - London Heathrow and Varna - 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 £223, our data indicates the cheapest price to be £70. The most popular route (Sofia - London Heathrow), is priced around £125.

  • 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.

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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

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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 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£88Average£142FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Bulgaria AirCheapest£95Average£225FlexibilityNo cancel feeOn-time73%
Search Bulgaria Air flights
LOTCheapest£173Average£247FlexibilityNo 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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