SOF - LHR

£45 Find Cheap Flights from Sofia to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Heathrow departing on 19/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to London, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£112
Typical prices: £174-£235
Air Serbia
Tue 12/5Thu 28/5
SOF - LHR • 1 stop
Cheapest direct flights
£127
Typical prices: £188-£286
British Airways
Mon 27/7Wed 5/8
SOF - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA's Euro Traveller fares include a carry-on bag.
BA's ergonomic seats offer comfort with 31-inch pitch.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Bulgaria Air and British Airways. Average duration is 3h 36m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from £112 (return)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top stopover airports
Cheapest • Avg £147 (return)
Shortest trip • 4h 40m (one-way)
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Sofia to Heathrow (SOF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sofia to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sofia to Heathrow

Tue, 12 May - Thu, 28 May
Air Serbia Logo
16:05 - 12:30
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
13:30 - 15:35
LHR
-
SOF
24h 05m
1 stop
£112Air Serbia
Tue, 21 Apr - Wed, 29 Apr
Air Serbia Logo
16:05 - 12:30
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
13:30 - 03:00
LHR
-
SOF
11h 30m
1 stop
£127Air Serbia
Mon, 27 Jul - Wed, 5 Aug
British Airways Logo
20:10 - 21:30
SOF
-
LHR
3h 20mdirect
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
£127British Airways
Wed, 8 Apr - Mon, 20 Apr
LOT Logo
18:45 - 09:20
SOF
-
LHR
16h 35m
1 stop
LOT Logo
06:30 - 18:00
LHR
-
SOF
9h 30m
1 stop
£129LOT
Wed, 22 Apr - Wed, 29 Apr
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
£130British Airways
Wed, 6 May - Wed, 13 May
British Airways Logo
21:25 - 22:45
SOF
-
LHR
3h 20mdirect
British Airways Logo
15:10 - 20:30
LHR
-
SOF
3h 20mdirect
£131British Airways
Sat, 25 Apr - Sat, 2 May
Air Serbia Logo
05:00 - 19:05
SOF
-
LHR
16h 05m
1 stop
Air Serbia Logo
19:55 - 15:35
LHR
-
SOF
17h 40m
1 stop
£133Air Serbia
Sat, 25 Apr - Tue, 28 Apr
LOT Logo
05:25 - 09:20
SOF
-
LHR
5h 55m
1 stop
LOT Logo
18:10 - 01:55
LHR
-
SOF
5h 45m
1 stop
£135LOT
Mon, 3 Aug - Mon, 10 Aug
British Airways Logo
20:10 - 21:30
SOF
-
LHR
3h 20mdirect
British Airways Logo
14:05 - 19:20
LHR
-
SOF
3h 15mdirect
£136British Airways
Wed, 22 Apr - Wed, 29 Apr
LOT Logo
18:45 - 22:00
SOF
-
LHR
5h 15m
1 stop
LOT Logo
10:20 - 18:00
LHR
-
SOF
5h 40m
1 stop
£138LOT
Booking Insights

KAYAK’s insights & trends for Sofia to Heathrow flights

Get data-powered insights and trends into flights from Sofia to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Sofia to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sofia to London Heathrow Airport departing in May.

What’s the cheapest day of the week to fly from Sofia to London Heathrow Airport?

The average price of all round-trip flights from Sofia to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Sofia to London Heathrow Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sofia to London Heathrow Airport is March, where tickets cost £138 (return) on average. On the other hand, the most expensive months are August and September, where the average cost of round-trip tickets is £250 and £231 respectively.

Can I save money by flying with a stopover from Sofia to London Heathrow Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £139, prices are generally cheapest when you fly direct.

Expert advice

Expert advice for your flight from Sofia to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Cheap tickets from Sofia to London Heathrow Airport

Low seasonOctober
Cheapest flight£45
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Sofia to London Heathrow Airport

When to book flights from Sofia to Heathrow

Are your dates flexible? Find out the best times to travel from Sofia to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Sofia to London Heathrow Airport flights

  • What is the cheapest flight from Sofia to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Sofia to London Heathrow Airport was £48 for a one-way ticket and £112 for a return.

  • Which airports will I be using when flying from Sofia to London Heathrow Airport?

    When flying out of Sofia you will be using Sofia. You will be landing at London Heathrow Airport, also known as London Heathrow.

  • Which aircraft models fly most regularly from Sofia to London Heathrow Airport?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Sofia to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Sofia to London Heathrow Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Sofia and London Heathrow Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Sofia to London Heathrow Airport?

    You can catch a direct flight from Sofia to London Heathrow Airport on Monday, Wednesday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from Sofia to London, Bulgaria Air or LOT?

    The two airlines most popular with KAYAK users for flights from Sofia to London are Bulgaria Air and LOT. With an average price for the route of £195 and an overall rating of 8.4, Bulgaria Air is the most popular choice. LOT is also a great choice for the route, with an average price of £185 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Sofia to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sofia to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sofia to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Sofia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sofia to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Sofia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sofia to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Sofia? 25% of our users found flights on this route for £93 or less one-way and £138 or less round-trip.

Prefer to fly direct from Sofia to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Sofia to London Heathrow.
Find which airlines fly direct from Sofia Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Sofia to London Heathrow

Monday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Wednesday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Friday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Saturday

Bulgaria Air

Bulgaria Air

Sunday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

See more direct flights

Direct returns

London Heathrow to Sofia

Monday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Wednesday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Friday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

Saturday

Bulgaria Air

Bulgaria Air

Sunday

British Airways,Bulgaria Air

British Airways,Bulgaria Air

See more direct flights

Reviews of the top 3 airlines flying from Sofia to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Sofia to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Bulgaria AirOverall score based on 59 reviews
8.1Comfort
7.8Food
8.7Crew
7.1Entertainment
8.4Boarding
Airline reviews

Bulgaria Air should stop using buses for boarding if possible. It is very inconvenient and delays the departure

8.0 ExcellentNikola, Jun 2025
SOF - AMS
Read more Bulgaria Air reviews

Bulgaria Air should stop using buses for boarding if possible. It is very inconvenient and delays the departure

Easy check in. Hot snack with wine if desired. Then chocolate, tea or coffee. Altogether excellent.

Seats are quite small, but due to the plane being empty we were aloud to switch seats to have more room

The water was handed out as we were entering the plane, instead of when we are set down and our hands are free of luggage. There was absolutely no food offered from Sofia to London, except a low quality chocolate, which was not delicious. The flight between London and Miami was ok, as far as service and food, but it was absolutely freezing, throughout the whole aircraft, especially in the back seats, I had to cover my head with a scarf, besides using the blanket and still I was feeling extremely uncomfortable. The passengers seating around me shared the same opinion. We did ask for something to be done about it. The gentleman did try to adjust it, but the effect last very short time, and towards the end of the flight it was extremely cold and blowing strong again ….

Stuck on a plane for 6 hours due to a technical or mechanical issue.

Boarding was a madhouse. Airport staff was completely disinterested in communicating about the delays. Never again.

The seats are very narrow. Communication regarding bids for better seating could be better

Although I was flying in business class, the feeling, comfort and in general the whole experience was like flying in a low cost airline. Boarding by. Us, no priority to business class passengers. The plane was very old and looked poor and rely old. Seats do not recline. Space between rows very small. No separation between business class and economy. No separate toilet for business class passengers. Of course no entertainment, no WiFi and no charging. Very bad experience

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

Crew was excellent. Business class was poor on the short flight and mediocre at best on the international flight.

Delay rushed to the next plane and bags didn’t arrive in chicago

Boarding could've been improved a bit, the rest is excellent.

BA is a fine airline. The problem lies with XCOVER INSURANCE, that KAYAK uses. Very poor service from insurance. No telephone number to contact XCOVER. Their replies are inadequate & overall very bad insurance. I wish kayak uses standard insurance company., such as AIG.

British Airways offers amenities subpar with all other airlines flying internationally. Sharing tis based on my experience with flying at least five other airline between IAD-DEL in the last six months.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I missed my flight because I was sick and the medicine the chemist provided made me sleepy. I had to pay $3500 to get home because you classified me as a no-show and would not listen to me otherwise. In addition you wanted to route me through Dubai, which was under siege by the time I arrived home and would’ve been in trouble. Had I taken that route

Limited entertainment. Music - very limited variety of music. Suggest more options in Hindi, Telugu, English for flights leaving from Hyderabad.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Food was good. For a long haul flight, there was “0” zero entertainment! What a disappointment. I do try to avoid BA. Next time its Emirates via Dubai to Cairo.

The internet was working on both sectors of the flight so hard to take the flight if you are on business.

Delays on take off, delays at gate on landing, lugging lost to the ether. power on seats not working, couldn't work due to that and no WiFi. The crew was great and boarding was orderly if confused and rushed.

Mumbai airport is a nightmare! Especially going from domestic to international terminal (2). I almost missed my flight. Then i could not check in because I purchased on kayak to British airways and my first flight was an indigo (non partner). So they called me when I was at the security outside the terminal and told me I had a middle seat, not what I paid for! After talking to the desk agent, they could not help but it finally worked out. A bit stressful for no reason. Probably never buy from kayak again this type pf complicated tickets (multi cities).

Everything you need to know for your flight from Sofia to Heathrow

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