Title: £137 Cheap Bulgaria Air flights from London to Sofia (LHR→SOF) - Expedia.co.uk ![Ivan Vazov National Theatre which includes heritage architecture](https://images.trvl-media.com/place/6097820/e84c7119-8c1f-4bb6-91b5-7cb881e80956.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6097820/e84c7119-8c1f-4bb6-91b5-7cb881e80956.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £137 Cheap Bulgaria Air flights from London to Sofia (LHR→SOF) [View £137 flight on Fri, 17 Oct 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:SOF,departure:17/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:136.32&airProductToken=AQorCikIxoQBEgM4NTIY64kBINIrKNfN-gIwn8_6AjhWQABYAXIHVk5PQkFHTxIKCAEQARgBKgJGQhgBIgQIARABKAIoAygEMAE) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Bulgaria Air flights from London to Sofia (LHR→SOF) Prices were available within the past 7 days and start at £137 for one-way flights and £222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Bulgaria Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/FB.gif) Sat, 31 Jan - Sun, 8 Feb LHR London SOF Sofia £222 Return just found [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SOF,departure:31/01/2026TANYT&leg2=from:SOF,to:LHR,departure:08/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:221.02&airProductToken=AQorCikIxoQBEgM4NTIY64kBINIrKKf0gwMw5fWDAzhWQABYAXIHVk5PQkFHUgorCikIxoQBEgM4NTEY0isg64kBKKTKhAMw9suEAzhWQABYAXIHVk5PQkFHUhIKCAEQARgBKgJGQhgBIgQIARABKAIoAygEMAE) ## Travel information | Origin airport | Heathrow | | --- | --- | | Destination airport | Sofia | | Airlines serving | Aegean, Air France, Air Serbia, Austrian Airlines, British Airways, Bulgaria Air, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines | | Popular airline | LOT-Polish Airlines | | Distance | 2028 km | | Average flight time | 5 hours 10 mins | ## Explore a world of travel with Expedia - Trending Bulgaria Air Flights - Trending Routes - Related Airlines - Nearby Airports - Flights from Other Cities - Expedia's Latest Trends ### Most Popular Bulgaria Air Routes from London - [Bulgaria Air LHR to VAR](https://expedia.co.uk/lp/flight-routes/bulgaria-air-from-heathrow-to-varna-intl/fb/lhr/var) - [Bulgaria Air LHR to SOF](https://expedia.co.uk/lp/flight-routes/bulgaria-air-from-heathrow-to-sofia/fb/lhr/sof) ### Most Popular Bulgaria Air Routes from Sofia - [Bulgaria Air SOF to FCO](https://expedia.co.uk/lp/flight-routes/bulgaria-air-from-sofia-to-fiumicino-leonardo-da-vinci-intl/fb/sof/fco) - [London to Prague (LHR - PRG)](https://expedia.co.uk/lp/flights/lhr/prg/london-to-prague) - [Sofia to Rome (SOF - FCO)](https://expedia.co.uk/lp/flights/sof/fco/sofia-to-rome) - [Sofia to London (SOF - LHR)](https://expedia.co.uk/lp/flights/sof/lhr/sofia-to-london) - [Sofia to Athens (SOF - ATH)](https://expedia.co.uk/lp/flights/sof/ath/sofia-to-athens) - [Athens to Amsterdam (ATH - AMS)](https://expedia.co.uk/lp/flights/ath/ams/athens-to-amsterdam) - 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