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$67+ Cheap flights from Sofia (SOF) to Heathrow (LHR)

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — LHR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Sofia to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$141
(Iberia)

One-way from

$67
(Expedia)

Popular in

August

Cheapest in

November

Average price

$241

Good round-trip deal

$618 or less

Good one-way deal

$124 or less
From Sofia to London Heathrow
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One-way flight from Sofia to London Heathrow
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Highest demand for flights based on searches. 7% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Sofia to London Heathrow.
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Price to beat on a one-way flight from Sofia to London Heathrow.
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Find flight deals from Sofia to Heathrow

Cheapest flights from Sofia to Heathrow
Explore the most affordable flight options available from Sofia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Iberia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:25 pmSOF - LHR
Nonstop3h 30mBritish Airways
Sun 11/167:50 amLHR - SOF
Nonstop3h 10mBritish Airways
Deal found 9/15$141
This Air Serbia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/204:05 pmSOF - LHR
1 stop22h 25mAir Serbia
Tue 10/281:20 pmLHR - SOF
1 stop24h 10mAir Serbia
Deal found 9/15$169
This Air Serbia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:05 pmSOF - LHR
1 stop22h 25mAir Serbia
Tue 10/281:20 pmLHR - SOF
1 stop24h 10mAir Serbia
Deal found 9/15$170
This Air Serbia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:05 pmSOF - LHR
1 stop22h 25mAir Serbia
Thu 10/301:20 pmLHR - SOF
1 stop11h 40mAir Serbia
Deal found 9/17$171
This British Airways deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:25 pmSOF - LHR
Nonstop3h 30mBritish Airways
Mon 12/811:10 amLHR - SOF
Nonstop3h 10mBritish Airways
Deal found 9/14$182
This Mytrip deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:20 amSOF - LHR
1 stop6h 00mLOT
Wed 10/156:30 amLHR - SOF
1 stop9h 25mLOT
Deal found 9/16$196
This Air Serbia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:05 pmSOF - LHR
1 stop22h 25mAir Serbia
Mon 10/201:30 pmLHR - SOF
1 stop24h 05mAir Serbia
Deal found 9/15$197
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/104:05 pmSOF - LHR
1 stop22h 25mAir Serbia
Sun 10/191:30 pmLHR - SOF
1 stop11h 25mAir Serbia
Deal found 9/16$199
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:35 pmSOF - LHR
1 stop5h 25mLOT
Mon 11/176:30 amLHR - SOF
1 stop9h 20mLOT
Deal found 9/16$200
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:40 pmSOF - LHR
1 stop5h 20mLOT
Mon 10/206:30 amLHR - SOF
1 stop9h 25mLOT
Deal found 9/15$201
This Booking.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:40 pmSOF - LHR
1 stop5h 20mLOT
Mon 10/206:10 pmLHR - SOF
1 stop21h 45mLOT
Deal found 9/15$202

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia 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 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Sofia to London Heathrow Airport that are best for you.

Fly from

Sofia

Fly to

Heathrow

Route

Depart

Return

Price

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 10/9

4:05 pm-12:30 pm

1 stop22h 25m

London Heathrow

Sun 10/12

1:30 pm-2:55 am

1 stop11h 25m

$169

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 12/1

4:00 pm-12:20 pm

1 stop22h 20m

London Heathrow

Mon 12/8

1:20 pm-3:00 am

1 stop11h 40m

$169

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 10/9

4:05 pm-12:30 pm

1 stop22h 25m

London Heathrow

Wed 10/15

1:30 pm-2:55 am

1 stop11h 25m

$169

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 10/25

5:00 am-12:30 pm

1 stop9h 30m

London Heathrow

Sun 11/2

1:20 pm-3:30 pm

1 stop24h 10m

$169

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 10/20

4:05 pm-12:30 pm

1 stop22h 25m

London Heathrow

Tue 10/28

1:20 pm-3:30 pm

1 stop24h 10m

$169

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 10/4

5:00 am-7:05 pm

1 stop16h 05m

London Heathrow

Sun 10/5

1:30 pm-2:55 am

1 stop11h 25m

$170

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Tue 10/21

4:05 pm-12:30 pm

1 stop22h 25m

London Heathrow

Mon 10/27

1:20 pm-3:00 am

1 stop11h 40m

$170

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Thu 10/23

4:05 pm-12:30 pm

1 stop22h 25m

London Heathrow

Thu 10/30

1:20 pm-3:00 am

1 stop11h 40m

$170

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Sat 10/25

5:00 am-12:30 pm

1 stop9h 30m

London Heathrow

Fri 10/31

1:20 pm-3:30 pm

1 stop24h 10m

$170

SofiaLondon

SOF - LHR

SOFLHR

Sofia

Mon 12/1

5:25 pm-6:55 pm

Nonstop3h 30m

$67

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Sofia to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sofia with our price prediction graph.
Estimated round-trip 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 Sofia to London Heathrow Airport

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

Currently, November is the cheapest month in which you can book a flight from Sofia to London Heathrow Airport (average of $661). Flying from Sofia to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 SOF to LHR?

Find hourly flight availability from Sofia 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 September 17, 2025.

One of the essential ways to save on airfare from Sofia to London Heathrow Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 8% on airfare.

What is the cheapest day to fly from Sofia to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Sofia to Heathrow. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Sofia to London Heathrow Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 17, 2025.
Get a feel of what it's like to fly with British Airways from Sofia to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,367 reviews

Entertainment

6.4

Food

6.3

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,367 reviews
British Airways
6.7
Okay
7,367 reviews

Entertainment

6.4

Food

6.3

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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

  • What airport do you fly from for flights from Sofia to London Heathrow?

    Sofia (SOF) is the airport you will fly out of if you book a flight from Sofia to London Heathrow. You should not have trouble finding flights to London Heathrow from Sofia; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sofia airport to London Heathrow. It is only a 4.2 mi journey to Sofia (SOF) from Sofia’s city center.

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

    There are many flights that can get you from Sofia to London Heathrow Airport in 22h 25m. Fly via Air Serbia to get the fastest option. The distance between Sofia and London Heathrow Airport is about 1267 mi.

  • What are the cheapest airlines flying from Sofia to London Heathrow Airport round-trip?

    Currently priced at $68, British Airways will fly you from Sofia to London Heathrow Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Bulgaria Air for as low as $145. You may be able to fly from Sofia to London Heathrow Airport for 71% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Sofia to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Sofia, check out the most reliable airlines to get you to your destination on time: Bulgaria Air (73%), American Airlines (55%), British Airways( 55%).

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

    Looking at all options, your cheapest flight can be booked for $75. While the most popular route (Sofia - London Heathrow) can be booked for $141 on average, our data indicates $452 when flying from Sofia to London Heathrow Airport.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Sofia to London Heathrow Airport (average of $661). Flying from Sofia to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Sofia to Heathrow

Discover the top 2 airlines that operate flights from Sofia 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$68Average$218FlexibilityNo cancel feeOn-time70%
Bulgaria AirCheapest$145Average$238FlexibilityNo cancel feeOn-time73%

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