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Cheap flights from Brussels Bruxelles-National Airport to Sofia from £42

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SOF
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bruxelles-National to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Bruxelles-National (BRU) 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 8 January 2026.

Round-trip from

£138

One-way from

£42

Popular in

July

Cheapest in

January

Average price

£38

Good round-trip deal

£110 or less
Air Serbia
  • Air Serbia
  • 13/5-25/5
  • 2 total stops
  • 22h 45m total
  • Brussels to Sofia
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Ryanair
  • Ryanair
  • 23/1
  • 1 total stop
  • 10h 40m total
  • Brussels to Sofia
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Highest demand for flights based on searches. 38% potential increase in price (£49 potential increase over avg. return price).
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Cheapest flight prices on average. 11% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Brussels Bruxelles-National to Sofia.
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Find flight deals from Bruxelles-National to Sofia

Enter your travel dates to find the best prices.

Cheapest flights from Bruxelles-National to Sofia
Explore the most affordable flight options available from Bruxelles-National to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.

Wed 13/521:15BRU - SOF
1 stop4h 45mAir Serbia
Mon 25/516:05SOF - BRU
1 stop18h 00mAir Serbia
Deal found 7/1£138
Fri 6/209:25BRU - SOF
1 stop16h 40mAir Serbia
Mon 9/216:00SOF - BRU
1 stop4h 40mAir Serbia
Deal found 6/1£139
Mon 6/421:15BRU - SOF
1 stop17h 20mAir Serbia
Wed 15/416:05SOF - BRU
1 stop5h 20mAir Serbia
Deal found 7/1£156
Wed 18/320:25BRU - SOF
1 stop18h 05mAir Serbia
Wed 25/316:00SOF - BRU
1 stop4h 40mAir Serbia
Deal found 7/1£156
Fri 20/215:10BRU - SOF
1 stop7h 05mMultiple Airlines
Fri 27/210:05SOF - BRU
1 stop7h 05mMultiple Airlines
Deal found 6/1£157
Fri 13/209:25BRU - SOF
1 stop16h 40mAir Serbia
Mon 16/216:00SOF - BRU
1 stop4h 40mAir Serbia
Deal found 8/1£169
Wed 29/421:15BRU - SOF
1 stop4h 45mAir Serbia
Thu 30/416:05SOF - BRU
1 stop18h 00mAir Serbia
Deal found 6/1£173
Mon 9/309:50BRU - SOF
1 stop7h 10mAustrian Airlines
Sat 14/312:35SOF - BRU
1 stop21h 30mAustrian Airlines
Deal found 8/1£180
Mon 27/421:15BRU - SOF
1 stop17h 20mAir Serbia
Thu 30/416:05SOF - BRU
1 stop18h 00mAir Serbia
Deal found 6/1£186

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bruxelles-National 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 858,174 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Sofia that are best for you.

Fly from

Bruxelles-National

Fly to

Sofia

Route

Depart

Return

Price

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Wed 13/5

21:15-03:00

1 stop4h 45m

Sofia

Mon 25/5

16:05-09:05

1 stop18h 00m

£138

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Thu 14/5

21:15-15:35

1 stop17h 20m

Sofia

Mon 18/5

16:05-09:05

1 stop18h 00m

£139

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Tue 7/4

09:50-15:35

1 stop4h 45m

Sofia

Wed 15/4

16:05-20:25

1 stop5h 20m

£156

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Wed 8/4

21:15-03:00

1 stop4h 45m

Sofia

Wed 15/4

16:05-20:25

1 stop5h 20m

£156

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Wed 18/3

20:25-15:30

1 stop18h 05m

Sofia

Wed 25/3

16:00-19:40

1 stop4h 40m

£156

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Fri 13/2

09:25-15:30

1 stop5h 05m

Sofia

Mon 16/2

16:00-19:40

1 stop4h 40m

£169

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Mon 6/4

21:15-15:35

1 stop17h 20m

Sofia

Thu 16/4

16:05-09:05

1 stop18h 00m

£169

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Mon 9/3

06:30-23:55

1 stop16h 25m

Sofia

Fri 13/3

18:45-23:20

1 stop5h 35m

£180

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Fri 23/1

09:40-21:20

1 stop10h 40m

£42

BrusselsSofia

BRU - SOF

BRUSOF

Brussels Bruxelles-National

Fri 23/1

09:40-02:55

2 stops16h 15m

£68

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 11 results
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Best time to book a flight from Bruxelles-National to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Bruxelles-National with our price prediction graph.
Estimated return 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 Brussels Bruxelles-National Airport to Sofia

How far ahead should I book a flight from Brussels Bruxelles-National Airport to Sofia?

Use this chart to determine the optimal time to book a return flight from Bruxelles-National to Sofia. Price data was last updated on 2 January 2026.

To ensure you get the cheapest price possible for a flight from Brussels Bruxelles-National Airport to Sofia, you should look to book at least 34 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to Sofia?

Currently, January is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Sofia (average of £18). Flying from Brussels Bruxelles-National Airport to Sofia in July is currently the most expensive (average of £125). 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 BRU to SOF?

Find hourly flight availability from Bruxelles-National 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 8 January 2026.

When flying from Brussels Bruxelles-National Airport to Sofia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Brussels Bruxelles-National Airport to Sofia?

Related info for your journey

Find useful and relevant information for your journey from Bruxelles-National 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 Brussels Bruxelles-National?

    For a flight from Brussels Bruxelles-National to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from Brussels Bruxelles-National per day. 0 airlines have flights to Sofia from Brussels Bruxelles-National on a regular basis.

  • How long is the flight from Brussels Bruxelles-National Airport to Sofia?

    Air Serbia can get you from Brussels Bruxelles-National Airport to Sofia in just under 4h 45m. Your travel time can differ by up to . Airlines will cover a distance of 1054 mi.

  • What are the cheapest flights from Brussels Bruxelles-National Airport to Sofia?

    Looking for the cheapest flight from Brussels Bruxelles-National Airport to Sofia? While on average our users pay £110, our data indicates the cheapest price to be £110. The most popular route (Brussels Bruxelles-National - Sofia), is priced around £180.

  • Can I find deals for flights from Bruxelles-National to Sofia that include hotel bookings?

    Yes. In addition to deals on Bruxelles-National to Sofia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bruxelles-National to Sofia?

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

  • Can I find deals for business class flights from Bruxelles-National to Sofia?

    Yes. Cheapflights offers flight deals from Bruxelles-National 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 Brussels Bruxelles-National Airport to Sofia?

    Currently, January is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Sofia (average of £18). Flying from Brussels Bruxelles-National Airport to Sofia in July is currently the most expensive (average of £125). 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 Bruxelles-National to Sofia?

Cheapflights helps you search for flights from Bruxelles-National to Sofia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Bruxelles-National 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 Bruxelles-National to Sofia.

Can Cheapflights find flights from Bruxelles-National to Sofia with no change fees?

Certainly. Search results for flights to Sofia from Bruxelles-National shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Bruxelles-National to Sofia become cheaper?

Yes, Cheapflights offers price alerts on Bruxelles-National to Sofia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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