$81 Cheap Flights from London (LHR) to Sofia (SOF)

View $81 flight on Mon, Dec 1, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Sofia Airport (SOF)

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Find available prices by choosing your travel dates.

Cheap Flights from London to Sofia (LHR-SOF)

Prices were available within the past 7 days and start at $81 for one-way flights and $126 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Jan 7 - Wed, Mar 11
LHR
London
SOF
Sofia
$126 Roundtrip, found 5 days ago
$126
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Jan 7 from London to Sofia, returning Wed, Mar 11, priced at $126 found 5 days ago
British Airways
Tue, Nov 18 - Tue, Nov 25
LHR
London
SOF
Sofia
$128 Roundtrip, found 13 hours ago
$128
Roundtrip
found 13 hours ago
Select British Airways flight, departing Tue, Nov 18 from London to Sofia, returning Tue, Nov 25, priced at $128 found 13 hours ago
British Airways
Mon, Dec 1 - Fri, Dec 19
LHR
London
SOF
Sofia
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Dec 1 from London to Sofia, returning Fri, Dec 19, priced at $137 found 1 day ago
British Airways
Fri, Dec 12 - Fri, Dec 19
LHR
London
SOF
Sofia
$141 Roundtrip, found 6 hours ago
$141
Roundtrip
found 6 hours ago
Select British Airways flight, departing Fri, Dec 12 from London to Sofia, returning Fri, Dec 19, priced at $141 found 6 hours ago
British Airways
Wed, Apr 30 - Wed, May 7
LHR
London
SOF
Sofia
$164 Roundtrip, found 2 days ago
$164
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Apr 30 from London to Sofia, returning Wed, May 7, priced at $164 found 2 days ago
British Airways
Mon, Jan 12 - Mon, Jan 19
LHR
London
SOF
Sofia
$168 Roundtrip, found 6 hours ago
$168
Roundtrip
found 6 hours ago
Select British Airways flight, departing Mon, Jan 12 from London to Sofia, returning Mon, Jan 19, priced at $168 found 6 hours ago
Air Serbia
Mon, Dec 1 - Fri, Dec 19
LHR
London
SOF
Sofia
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select Air Serbia flight, departing Mon, Dec 1 from London to Sofia, returning Fri, Dec 19, priced at $191 found 1 day ago
Lufthansa
Thu, May 8 - Thu, May 29
LHR
London
SOF
Sofia
$203 Roundtrip, found 6 days ago
$203
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Thu, May 8 from London to Sofia, returning Thu, May 29, priced at $203 found 6 days ago
Austrian Airlines
Sat, May 10 - Tue, May 13
LHR
London
SOF
Sofia
$219 Roundtrip, found 6 days ago
$219
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Sat, May 10 from London to Sofia, returning Tue, May 13, priced at $219 found 6 days ago
Aegean
Thu, May 8 - Mon, May 12
LHR
London
SOF
Sofia
$234 Roundtrip, found 11 hours ago
$234
Roundtrip
found 11 hours ago
Select Aegean flight, departing Thu, May 8 from London to Sofia, returning Mon, May 12, priced at $234 found 11 hours ago
Flights from London (LHR) to Sofia (SOF)
Origin airport
Heathrow
Destination airport
Sofia
Airlines serving
Aegean, Air Baltic, Air France, Air Serbia, Austrian Airlines, British Airways, Bulgaria Air, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$125
Distance
1267 mi

London to Sofia Flights

The cheapest times to fly from London to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Sofia are during the month of January. You can find some of the cheapest flights from London to Sofia with Expedia's search tool and vast selection of airlines.

The best time to book a flight from London to Sofia

Sunday is one of the best days to book for cheap flights from London to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from London to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $81 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Sofia Airport (SOF) cost?
You can land cheap return tickets from Heathrow Airport (LHR) to Sofia Airport (SOF) starting from $220. Book your seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways flight leaving LHR on May 14 2025 and touching down at SOF. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from LHR to SOF?
The cheapest flights from LHR to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Heathrow Airport (LHR) to Sofia Airport (SOF)?
If you’re departing from Heathrow Airport (LHR), you can board a nonstop flight to Sofia Airport (SOF) with British Airways.
What is the cheapest airline that flies from LHR to SOF?
Jet off from LHR to SOF with British Airways. This airline currently offers the cheapest one-way fare on this route, starting from $129. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on May 7 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Sofia Airport (SOF)?
On average, just 1 direct flight departs each day from Heathrow Airport (LHR) to Sofia Airport (SOF). Need more options? Use Expedia’s filters to find flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Sofia Airport (SOF)?
The 12 PM departures from LHR to SOF are typically the busiest. Greater demand means you’ll likely pay more for these departures. If you want to save on your trip, choose a less crowded time to fly.
What day of the week has the most flights from LHR to SOF?
If you depart on a Wednesday, you’ll get the biggest range of options for flights from Heathrow Airport (LHR) to Sofia Airport (SOF).
What is the earliest flight from Heathrow Airport (LHR) to Sofia Airport (SOF)?
Heathrow Airport (LHR)’s earliest flight to Sofia Airport (SOF) takes off at approximately 6:10AM UTC+0. With a total travel time of 3h 5m, you’ll touch down at around 11:15AM UTC+2.
How long does it take to fly from Heathrow Airport (LHR) to Sofia Airport (SOF)?
Flights from LHR to SOF have an average travel time of 3 hours and 9 minutes. The total distance between the two airports is 1,250 mi.
What is the best time to fly from Heathrow Airport (LHR) to Sofia Airport (SOF)?
Select a flight from Heathrow Airport (LHR) to Sofia Airport (SOF) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Sofia from Heathrow Airport (LHR)?
Browse your flight options from Heathrow Airport (LHR) to Sofia Airport (SOF). This is the only Sofia airport you can fly into if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Sofia Airport (SOF) last-minute?
Booking your flight from LHR to SOF just before your trip is typically more expensive. However, if there’s some wiggle room with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a LHR to SOF flight and hotel package?
Compared with arranging hotels and flights separately, booking a LHR to SOF flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Simply pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Sofia Airport (SOF)?
If you booked your LHR to SOF flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.