Cheap Flights from Sofia to London Heathrow

Compare Sofia to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Sofia to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Sofia to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sofia to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sofia to London Heathrow flights are currently cheapest in December.

Direct flights from Sofia to London Heathrow

Sofia to London Heathrow: Alternative routes

Compare routes from Sofia to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Sofia to London: Flight information

The things to know before you go.
Cheapest flight foundR 792
Cheapest month to flyDecember
Average flight time3 hrs, 27 mins
Most popular airlineAmerican Airlines
Average flights per week13

Finding cheap flights from Sofia to London Heathrow: Frequently asked questions

The best price we found for a return flight from Sofia to London Heathrow is R 2,254. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 27 minutes is the average flight time from Sofia to London Heathrow.
American Airlines, British Airways and Bulgaria Air fly direct from Sofia to London Heathrow.
As of July 2025, there are 13 flights per week flying from Sofia to London Heathrow.
The cheapest month to fly from Sofia to London Heathrow is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sofia Airport to London Heathrow Airport on Saturday, 20 December 2025.
Yes – the average flight time is 3 hours and 27 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to London Heathrow.

Flying from Sofia Airport (SOF) to London Heathrow Airport (LHR): what you need to know

  • The average length of a direct flight from Sofia Airport to London Heathrow Airport is 3 hours 25 minutes.

  • The timezone in London is UTC+0, which is two hours behind Sofia.

  • You can choose from 15 weekly Sofia Airport to London Heathrow Airport flights. The 06:20 departure with Bulgaria Air is the earliest available. British Airways operates the latest service of the day at 21:20.

  • Arrive at the airport on time so you don't miss your SOF to LHR flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • You can expect longer lines in popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will give you ample time for security and boarding.

  • British Airways has direct flights from Sofia Airport to London Heathrow Airport. Book with this popular airline, then get ready to tick off the sights in London — and maybe even more of United Kingdom if your schedule allows.

  • Most passengers choose to fly with British Airways on this route.

  • British Airways stands out as the most punctual carrier for SOF to LHR flights, with 83.33% of its services landing as scheduled.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Sofia Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to visit your chosen city. Some great stopovers between SOF and LHR include:

    • Vienna International Airport

    • Franz Josef Strauss Airport

    • Frankfurt Airport

How to find the cheapest flights from Sofia Airport (SOF) to London Heathrow Airport (LHR)

  • R 792 is currently the lowest price for a one-way Sofia Airport to London Heathrow Airport flight. A return flight starts from R 2,254. These prices can change based on demand.

  • Get cheap tickets from SOF to LHR by booking one month ahead. Based on our research, that's the sweet spot for picking up a bargain.

  • Schedule your trip for December. That's the cheapest month for flights from Sofia Airport to London Heathrow Airport. If you're flexible with your travel dates, try out the 'Whole month' tool to see the cheapest price across each month.

  • There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you the moment there's a better deal on cheap flights from SOF to LHR.

  • Tailor your trip using filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Sofia Airport to London Heathrow Airport.

Handy information about Sofia Airport (SOF)

  • When it comes to the on-time performance of Sofia Airport, data shows 66.73% of flights arrive within the scheduled timeframe.

  • Central Sofia to Sofia Airport is approximately 11 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Catching public transport? Expect a trip time of around 35 minutes.

  • Taking an early flight from Sofia Airport to London Heathrow Airport? Avoid rushing to the airport (and sneak in some extra precious sleep) by choosing one of these stays near SOF:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 55 minutes to reach the centre by car.

  • Travelling by public transport takes about 1 hour.

When to fly to London Heathrow Airport (LHR)

  • July is the busiest month for flights from Sofia Airport to London Heathrow Airport. For a quieter experience, head to London in February.

  • The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your flights from Sofia Airport to London Heathrow Airport in this month if you enjoy this type of weather.

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from SOF to LHR around that time if you'd rather travel in cooler conditions.

Explore more of United Kingdom

  • London has its own special appeal, but there are so many other parts of United Kingdom waiting to be discovered. About 161 kilometres north-west of London, a trip to Birmingham will keep your itinerary busy. Start with leading attractions like Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Bristol is another sought-after destination in United Kingdom and is around 177 kilometres west of London. No journey is complete without experiencing Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.