SOF - LHR

$70 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 London departing on 9/5. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$150
Typical prices: $189-$279
British Airways
Wed 4/1Sun 4/12
SOF - LHR • Non-stop
Cheapest one-way
$70
Typical prices: $130-$230
Air Serbia
Sat 9/5
SOF - LHR • 1 stop
Advice from real travelers
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
Nonstop flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Bulgaria Air and British Airways. Average duration is 3h 40m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $150 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $213 (round-trip)
Shortest trip • 5h 10m (one-way)
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Sofia to London (SOF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to London 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 round-trip flight deals from Sofia to London

Wed, Apr 1 - Sun, Apr 12
British Airways Logo
9:25 pm - 10:45 pm
SOF
-
LHR
3h 20mnonstop
British Airways Logo
2:55 pm - 8:10 pm
LHR
-
SOF
3h 15mnonstop
$150British Airways
Wed, Apr 1 - Sun, Apr 12
British Airways Logo
9:25 pm - 10:45 pm
SOF
-
LHR
3h 20mnonstop
British Airways Logo
2:55 pm - 8:10 pm
LHR
-
SOF
3h 15mnonstop
$152British Airways
Sun, Mar 29 - Mon, Apr 6
British Airways Logo
9:05 pm - 10:25 pm
SOF
-
LHR
3h 20mnonstop
British Airways Logo
2:05 pm - 7:20 pm
LHR
-
SOF
3h 15mnonstop
$157British Airways
Fri, Jun 12 - Sun, Jun 14
LOT Logo
6:45 pm - 9:20 am
SOF
-
LHR
16h 35m
1 stop
LOT Logo
6:30 am - 1:45 am
LHR
-
SOF
17h 15m
1 stop
$163LOT
Fri, May 8 - Mon, May 11
Air Serbia Logo
4:05 pm - 12:30 pm
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
1:30 pm - 3:35 pm
LHR
-
SOF
24h 05m
1 stop
$169Air Serbia
Tue, Apr 21 - Tue, Apr 28
Air Serbia Logo
4:05 pm - 12:30 pm
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
1:30 pm - 3:35 pm
LHR
-
SOF
24h 05m
1 stop
$170Air Serbia
Wed, Apr 1 - Sun, Apr 12
British Airways Logo
9:25 pm - 10:45 pm
SOF
-
LHR
3h 20mnonstop
British Airways Logo
2:55 pm - 8:10 pm
LHR
-
SOF
3h 15mnonstop
$176British Airways
Sat, Apr 25 - Sun, May 17
Air Serbia Logo
5:00 am - 7:05 pm
SOF
-
LHR
16h 05m
1 stop
Air Serbia Logo
7:25 pm - 3:35 pm
LHR
-
SOF
18h 10m
1 stop
$177Air Serbia
Wed, Apr 1 - Mon, Apr 20
British Airways Logo
9:25 pm - 10:45 pm
SOF
-
LHR
3h 20mnonstop
British Airways Logo
2:05 pm - 7:20 pm
LHR
-
SOF
3h 15mnonstop
$178British Airways
Mon, May 4 - Wed, May 13
Air Serbia Logo
4:05 pm - 12:30 pm
SOF
-
LHR
22h 25m
1 stop
Air Serbia Logo
1:30 pm - 3:00 am
LHR
-
SOF
11h 30m
1 stop
$179Air Serbia
Booking Insights

KAYAK's insights & trends for Sofia to London flights

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

How much is a round-trip flight from Sofia to London Heathrow Airport?

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

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 Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Sofia to London Heathrow Airport. For your return ticket, we recommend flying on a Thursday and avoiding Fridays 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 $185 (return) on average. On the other hand, the most expensive months are August and September, where the average cost of round-trip tickets is $335 and $310 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $202 on average.

Expert advice

Expert advice for your flight from Sofia to London

 
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, USA TODAY, 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

Low seasonOctober
Cheapest flight$70
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 London

Are your dates flexible? Find out the best times to travel from Sofia to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 $70 for a one-way ticket and $150 for a round-trip.

  • Do I need a passport to fly between Sofia and London Heathrow Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Sofia and on arrival in London Heathrow Airport.

  • 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 nonstop 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 Lufthansa?

    The two airlines most popular with KAYAK users for flights from Sofia to London are Bulgaria Air and Lufthansa. With an average price for the route of $270 and an overall rating of 8.4, Bulgaria Air is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $202 and an overall rating of 6.8.

  • 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 travelers 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 round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Sofia with another airline. Booking your flights between Sofia and LHR can sometimes prove cheaper using this method.

  • 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? 25% of our users found flights on this route for $150 or less one-way and $154 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 serving from Sofia to London

 
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 London? 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
8.7Crew
8.4Boarding
8.1Comfort
7.1Entertainment
7.8Food
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 ….

A bit more space? Not practical, I know. I felt squished in but part of that could have been the man sitting next to me.

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

Expect Business Class seating to be 2 passengers per 3 coach seats, with center blocked. This is typical for flights within Europe on most airlines. Service was excellent!

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

This was the best carrier, comfort, service, good food, on time experience on a long haul flight. New, clean, quiet, smooth aircraft!!!

Boarding was total chaos. They didn’t know what they were doing and taking bus to the airplane is like going back in time. The food is bad, portions are very small and we don’t get simple paper napkins! Is it really that bad?

The seats were extremely uncomfortable. I spent €25 on internet and never gained access to it. A flight attendant told me she would file a complaint/report on my behalf but it put me in a very difficult situation.

My mother is 87 years old and has knee problems. I have reserved a wheelchair indicating that she is immobile. For her it is very difficult to walk short distances. On arrival in Frankfurt, I was called via my mother's phone, by the female employee who had my mother in a wheelchair. She asked me how many and what color suitcases she has, which I explained. I was very surprised when 15 minutes later my mother walked out with her cane and balancing with great difficulties assisted by a young couple who were pushing her suitcase. Where was the wheelchair and the airport employee? I find this to be a disrespectful and abusive behavior of elderly people. It also raises the question of professional misconduct of the airport personnel in Frankfurt i.e. the female employee who abandoned an 87 year old immobile person by the luggage lane. I would like to inquire about the details i.e. name of that employee.

Very please with the seating that the Kayak staff booked for us!

I liked the movie selection and the speed getting the luggage. I did not like the fact that for premium they did not have a personal kit with toothpaste, I travel all the time in premium economy and bussiness and althought the kit might bot be the same at least you have the smalles kit in premium economy. I did not like either that because i was in the last row of premium economy nothing made it to my seat. They run out of the food I wanted ( it is a surprise because there were only 6-7 rows. They would run out of orange jouice were thy were passing water/orange juice around, they run out of some alcohol. I am undertand running out of it but I don’t understand why mot getting kore. The service I received in row 11 was different from the service in rows 7,8…. Also the screen on my tv was broken. It did not respond to touch. So, in conclusion, if I compare my flight going to Europe with an American airline plane in premium and the one with British, British expereince was significantly much worse. This company is declining fast.

The crew on the flight were not particularly pleasant and fluid restriction was an issue. I was not allowed to fill my water bottle. Crew didn't check on passengers other than meal service.

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.

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

Information on your arrival and departure airports