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Cheap flights from London Heathrow Airport to Sofia from C$ 141

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SOF
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Heathrow to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 September 2025.

Round-trip from

C$ 193

One-way from

C$ 141

Popular in

December

Cheapest in

November

Average price

C$ 383

Good one-way deal

C$ 238 or less
British Airways
  • British Airways
  • 8/11-10/11
  • Nonstop
  • 6h 40m total
  • London to Sofia
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British Airways
  • British Airways
  • 15/11
  • Nonstop
  • 3h 10m total
  • London to Sofia
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High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (C$ 22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a one-way flight from London Heathrow to Sofia.
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Find flight deals from Heathrow to Sofia

Cheapest flights from Heathrow to Sofia
Explore the most affordable flight options available from Heathrow to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Sat 8/116:05 a.m.LHR - SOF
Nonstop3h 10mBritish Airways
Mon 10/115:25 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 14/9C$ 193
Sat 8/116:05 a.m.LHR - SOF
Nonstop3h 10mBritish Airways
Sun 9/112:30 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 14/9C$ 213
Wed 29/102:55 p.m.LHR - SOF
Nonstop3h 15mBritish Airways
Wed 5/119:00 p.m.SOF - LHR
Nonstop3h 30mBritish Airways
Deal found 14/9C$ 239
Thu 13/111:20 p.m.LHR - SOF
1 stop11h 40mAir Serbia
Mon 17/114:00 p.m.SOF - LHR
1 stop22h 20mAir Serbia
Deal found 15/9C$ 291
Fri 7/111:20 p.m.LHR - SOF
1 stop11h 40mAir Serbia
Tue 11/115:00 a.m.SOF - LHR
1 stop9h 20mAir Serbia
Deal found 15/9C$ 293
Fri 31/106:35 a.m.LHR - SOF
1 stop4h 40mLufthansa
Fri 7/112:00 p.m.SOF - LHR
1 stop6h 35mLufthansa
Deal found 16/9C$ 294
Wed 15/1010:50 a.m.LHR - SOF
1 stop5h 50mLufthansa
Wed 22/1012:45 p.m.SOF - LHR
1 stop6h 20mLufthansa
Deal found 15/9C$ 303
Tue 14/101:45 p.m.LHR - SOF
1 stop7h 15mMultiple Airlines
Thu 16/106:55 p.m.SOF - LHR
1 stop4h 45mMultiple Airlines
Deal found 15/9C$ 304
Wed 1/1010:25 a.m.LHR - SOF
1 stop5h 45mMultiple Airlines
Wed 15/107:25 p.m.SOF - LHR
1 stop5h 15mMultiple Airlines
Deal found 15/9C$ 305
Tue 7/1010:25 a.m.LHR - SOF
1 stop5h 45mMultiple Airlines
Tue 11/117:05 p.m.SOF - LHR
1 stop5h 50mMultiple Airlines
Deal found 16/9C$ 307
Thu 25/91:45 p.m.LHR - SOF
1 stop7h 15mMultiple Airlines
Thu 2/106:55 p.m.SOF - LHR
1 stop4h 45mMultiple Airlines
Deal found 16/9C$ 314
Sat 18/103:05 p.m.LHR - SOF
1 stop6h 50mMultiple Airlines
Wed 22/1012:45 p.m.SOF - LHR
1 stop6h 20mMultiple Airlines
Deal found 14/9C$ 315

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Sofia that are best for you.

Fly from

Heathrow

Fly to

Sofia

Route

Depart

Return

Price

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Sat 14/3

6:05 a.m.-11:15 a.m.

Nonstop3h 10m

Sofia

Sun 15/3

2:30 p.m.-4:00 p.m.

Nonstop3h 30m

C$ 278

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 28/1

1:20 p.m.-3:00 a.m.

1 stop11h 40m

Sofia

Thu 29/1

4:00 p.m.-12:20 p.m.

1 stop22h 20m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Thu 30/10

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Thu 6/11

2:00 p.m.-6:35 p.m.

1 stop6h 35m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 15/10

10:50 a.m.-6:40 p.m.

1 stop5h 50m

Sofia

Wed 22/10

6:00 a.m.-9:55 a.m.

1 stop5h 55m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 14/1

1:20 p.m.-3:30 p.m.

1 stop24h 10m

Sofia

Tue 20/1

5:00 a.m.-12:20 p.m.

1 stop9h 20m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 7/11

1:20 p.m.-3:00 a.m.

1 stop11h 40m

Sofia

Tue 11/11

5:00 a.m.-12:20 p.m.

1 stop9h 20m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 21/11

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Mon 24/11

1:55 p.m.-5:05 p.m.

1 stop5h 10m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Tue 2/12

1:20 p.m.-3:30 p.m.

1 stop24h 10m

Sofia

Thu 4/12

4:00 p.m.-12:20 p.m.

1 stop22h 20m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Wed 15/10

1:45 p.m.-11:00 p.m.

1 stop7h 15m

Sofia

Wed 29/10

2:00 p.m.-7:35 p.m.

1 stop7h 35m

C$ 293

LondonSofia

LHR - SOF

LHRSOF

London Heathrow

Fri 31/10

6:35 a.m.-1:15 p.m.

1 stop4h 40m

Sofia

Fri 7/11

2:00 p.m.-6:35 p.m.

1 stop6h 35m

C$ 294

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Sofia

How far ahead should I book a flight from London Heathrow Airport to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Sofia. Price data was last updated on 12 September 2025.

The price you pay for your flight from London Heathrow Airport to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Sofia?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 807). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to SOF?

Find hourly flight availability from Heathrow to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

It’s typically best to fly out from London Heathrow Airport to Sofia in the morning. Doing so could potentially save you 22% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from London Heathrow Airport to Sofia?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from London Heathrow?

    Most people fly into Sofia (SOF) if they book a flight to Sofia from London Heathrow. On average, Sofia has 0 inbound flights from London Heathrow per day from 0 airlines. Sofia is conveniently located just 6.7 km from Sofia’s city centre.

  • How long is the flight from London Heathrow Airport to Sofia?

    British Airways, Air Serbia, and Lufthansa can get you from London Heathrow Airport to Sofia in just under 3h 10m. Your travel time can differ by up to 8h 30m. Airlines will cover a distance of 2039 km. This flight may include one or multiple stops.

  • What are the most reliable airlines from London Heathrow Airport to Sofia?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Sofia consider choosing Bulgaria Air (84%), American Airlines (65%) or British Airways (65%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London Heathrow Airport to Sofia?

    While on average a flight from London Heathrow Airport to Sofia is generally C$ 238, our data shows the cheapest flight currently is C$ 238. When looking at the most popular route, (London Heathrow - Sofia), you can expect to pay C$ 450 for that flight.

  • Can I find deals for flights from Heathrow to Sofia that include hotel bookings?

    Yes. In addition to deals on Heathrow to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Sofia.

  • Can I find deals for business class flights from Heathrow to Sofia?

    Yes. Cheapflights offers flight deals from Heathrow to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sofia (average of C$ 807). Flying from London Heathrow Airport to Sofia in July is currently the most expensive (average of C$ 1,176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Sofia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Sofia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sofia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Sofia.

Can Cheapflights find flights from Heathrow to Sofia with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Sofia with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Sofia become cheaper?

Yes! Start tracking prices for Heathrow to Sofia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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