What is the cheapest airline to fly from Southampton to Brussels round-trip?

Flying on KLM is currently your cheapest option to Brussels, with prices starting at £165. KLM is currently priced 27% below the average price you’ll pay for this route.

What is the cheapest day to fly from Southampton to Brussels?

Travellers seeking maximum savings on their Southampton to Brussels flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Brussels ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. August is typically the driest time to visit Brussels when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Brussels, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 3.0 C).

What is the cheapest day to fly round-trip from Southampton to Brussels?

Travelers have found that booking a Saturday departure is the best way to save up to 46% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Southampton to Brussels?

To save up to 33% on this flight, we recommend booking at least 58 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Southampton to Brussels from £136 1-2 weeks out and tickets from £142 for flights departing within the next 72 hours.

What is the cheapest month to fly from Southampton to Brussels?

The best pricing can be found in the month of January. Prices to Brussels from Southampton average £121. You can even find prices in January for less than £121, as users have found deals to Brussels from as low as £78. The month of July appears to be one of the more expensive times to travel to Brussels from Southampton. Flying in the targeted month can save you up to 17%.

What is the cheapest time of day to fly from SOU to BRU?

When flying from Southampton to Brussels, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 4% versus a flight in the morning.

What airport do you fly from for flights from Southampton to Brussels?

Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Brussels. 1 airline have flights from Eastleigh to Brussels on a regular basis. Booking flights from Southampton Eastleigh to Brussels should not be difficult; the airport handles an average of 0 outbound flights to Brussels per day.

Can I find deals for flights from Southampton to Brussels that include hotel bookings?

Yes. In addition to deals on Southampton to Brussels flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to Brussels?

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

Can I find deals for business class flights from Southampton to Brussels?

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

£101+ Flights from Southampton to Brussels

Q: How much does it cost for a return flight from Southampton to Brussels?

Airfare is below average for this route at the moment. Southampton to Brussels flights typically cost between £165 and £230 in September. The cheapest return flight price found within the last 3 days was £161 on Multiple Airlines (25 Sept-1 Oct).

Cheap flight deals from Southampton to Brussels

Round-trip from	£161
One-way from	£101
Popular in	June
Cheapest in	April
Average price	£207

25/9-1/10
2 total stops
25h 00m total
Southampton to Brussels

Search Deals

Aer Lingus
10/10
1 total stop
12h 40m total
Southampton to Brussels

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£19 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Southampton to Brussels

Cheapest flights from Southampton to Brussels
Explore the most affordable flight options available from Southampton to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Thu 25/920:00SOU - BRU

1 stop12h 50mMultiple Airlines

Wed 1/1021:30BRU - SOU

1 stop12h 10mMultiple Airlines

Deal found 10/9£161

Thu 25/915:05SOU - CRL

2 stops16h 15mMultiple Airlines

Wed 1/1019:40CRL - SOU

2 stops19h 40mMultiple Airlines

Deal found 10/9£207

Wed 5/1114:25SOU - CRL

1 stop6h 20mMultiple Airlines

Sat 8/1111:55CRL - SOU

2 stops21h 50mMultiple Airlines

Deal found 11/9£213

Sat 25/1016:25SOU - BRU

1 stop16h 40mMultiple Airlines

Sat 1/1116:45BRU - SOU

1 stop17h 00mMultiple Airlines

Deal found 10/9£222

Wed 5/1108:40SOU - BRU

1 stop4h 35mKLM

Sat 8/1114:45BRU - SOU

1 stop3h 15mKLM

Deal found 11/9£255

Thu 25/915:45SOU - BRU

2 stops17h 10mBritish Airways

Wed 1/1021:10BRU - SOU

2 stops19h 05mBritish Airways

Deal found 10/9£420

Sat 25/1012:25SOU - BRU

2 stops22h 05mBritish Airways

Sat 1/1119:25BRU - SOU

3 stops23h 25mBritish Airways

Deal found 10/9£566

Best flights from Southampton to Brussels
Discover carefully curated flight deals from Southampton to Brussels that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Thu 25/920:00SOU - BRU

1 stop12h 50mMultiple Airlines

Wed 1/1021:30BRU - SOU

1 stop12h 10mMultiple Airlines

Deal found 10/9£161

Wed 5/1108:40SOU - BRU

1 stop4h 35mKLM

Sat 8/1114:45BRU - SOU

1 stop3h 15mKLM

Deal found 11/9£255

Thu 25/915:05SOU - CRL

2 stops16h 15mMultiple Airlines

Wed 1/1019:40CRL - SOU

2 stops19h 40mMultiple Airlines

Deal found 10/9£207

Thu 25/915:45SOU - BRU

2 stops17h 10mBritish Airways

Wed 1/1021:10BRU - SOU

2 stops19h 05mBritish Airways

Deal found 10/9£420

Wed 5/1114:25SOU - CRL

1 stop6h 20mMultiple Airlines

Sat 8/1111:55CRL - SOU

2 stops21h 50mMultiple Airlines

Deal found 11/9£213

Sat 25/1016:25SOU - BRU

1 stop16h 40mMultiple Airlines

Sat 1/1116:45BRU - SOU

1 stop17h 00mMultiple Airlines

Deal found 10/9£222

Sat 25/1012:25SOU - BRU

2 stops22h 05mBritish Airways

Sat 1/1119:25BRU - SOU

3 stops23h 25mBritish Airways

Deal found 10/9£566

Last-minute flights from Southampton to Brussels
Discover last-minute flight deals from Southampton to Brussels. Data last updated 12 September 2025 and is based on user searches.

Thu 25/920:00SOU - BRU

1 stop12h 50mMultiple Airlines

Wed 1/1021:30BRU - SOU

1 stop12h 10mMultiple Airlines

Deal found 10/9£161

Thu 25/915:05SOU - CRL

2 stops16h 15mMultiple Airlines

Wed 1/1019:40CRL - SOU

2 stops19h 40mMultiple Airlines

Deal found 10/9£207

Thu 25/915:45SOU - BRU

2 stops17h 10mBritish Airways

Wed 1/1021:10BRU - SOU

2 stops19h 05mBritish Airways

Deal found 10/9£420

Sat 25/1016:25SOU - BRU

1 stop16h 40mMultiple Airlines

Sat 1/1116:45BRU - SOU

1 stop17h 00mMultiple Airlines

Deal found 10/9£222

Sat 25/1012:25SOU - BRU

2 stops22h 05mBritish Airways

Sat 1/1119:25BRU - SOU

3 stops23h 25mBritish Airways

Deal found 10/9£566

One-way flights from Southampton to Brussels
Search for one-way flight options from Southampton to Brussels. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Fri 10/1020:00SOU - BRU

1 stop12h 40mAer Lingus

Deal found 11/9£101

Fri 10/1019:25SOU - BRU

2 stops25h 10mMultiple Airlines

Deal found 11/9£120

Fri 10/1019:25SOU - CRL

2 stops16h 20mMultiple Airlines

Deal found 11/9£125

Fri 3/1017:35SOU - BRU

1 stop3h 40mKLM

Deal found 10/9£162

Sat 20/910:45SOU - BRU

2 stops22h 05mBritish Airways

Deal found 12/9£441

Wed 17/908:55SOU - BRU

2 stops24h 00mBritish Airways

Deal found 12/9£451

Fri 19/919:40SOU - BRU

2 stops37h 10mBritish Airways

Deal found 12/9£462

Thu 18/912:40SOU - BRU

2 stops6h 45mBritish Airways

Deal found 12/9£540

Sun 21/908:45SOU - BRU

2 stops10h 00mBritish Airways

Deal found 10/9£911

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 25/9

20:00-09:50

1 stop12h 50m

Brussels Bruxelles-National

Wed 1/10

21:30-08:40

1 stop12h 10m

£161

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Thu 25/9

15:05-08:20

2 stops16h 15m

Charleroi Brussels

Wed 1/10

19:40-14:20

2 stops19h 40m

£207

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Wed 5/11

14:25-21:45

1 stop6h 20m

Charleroi Brussels

Sat 8/11

11:55-08:45

2 stops21h 50m

£213

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 25/10

16:25-10:05

1 stop16h 40m

Brussels Bruxelles-National

Sat 1/11

16:45-08:45

1 stop17h 00m

£222

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Wed 5/11

08:40-14:15

1 stop4h 35m

Brussels Bruxelles-National

Sat 8/11

14:45-17:00

1 stop3h 15m

£255

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 25/9

15:45-09:55

2 stops17h 10m

Brussels Bruxelles-National

Wed 1/10

21:10-15:15

2 stops19h 05m

£420

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 25/10

12:25-11:30

2 stops22h 05m

Brussels Bruxelles-National

Sat 1/11

19:25-17:50

3 stops23h 25m

£566

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 10/10

20:00-09:40

1 stop12h 40m

£101

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 10/10

19:25-21:35

2 stops25h 10m

£120

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Fri 10/10

19:25-12:45

2 stops16h 20m

£125

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 16 results

Best time to book a flight from Southampton to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Southampton 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 Southampton to Brussels

What is the cheapest month to book a flight from Southampton to Brussels?

Currently, January is the cheapest month in which you can book a flight from Southampton to Brussels (average of £117). Flying from Southampton to Brussels in July is currently the most expensive (average of £166). 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.

How much does it cost for a return flight from Southampton to Brussels?

Reviews of airlines servicing Brussels

Get a feel of what it's like to fly with KLM from Southampton to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

What airport do you fly from for flights from Southampton to Brussels?
Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Brussels. 1 airline have flights from Eastleigh to Brussels on a regular basis. Booking flights from Southampton Eastleigh to Brussels should not be difficult; the airport handles an average of 0 outbound flights to Brussels per day.
What is the cheapest airline to fly from Southampton to Brussels round-trip?
Flying on KLM is currently your cheapest option to Brussels, with prices starting at £165. KLM is currently priced 27% below the average price you’ll pay for this route.
Can I find deals for flights from Southampton to Brussels that include hotel bookings?
Yes. In addition to deals on Southampton to Brussels flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Brussels?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Brussels.
Can I find deals for business class flights from Southampton to Brussels?
Yes. Cheapflights offers flight deals from Southampton to Brussels 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 Southampton to Brussels?
Currently, January is the cheapest month in which you can book a flight from Southampton to Brussels (average of £117). Flying from Southampton to Brussels in July is currently the most expensive (average of £166). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Southampton to Brussels

Gatwick to Bruxelles-National flights

Stansted to Bruxelles-National flights

Luton to Bruxelles-National flights

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Stansted to Charleroi Brussels flights

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Liverpool to Bruxelles-National flights

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Gatwick to Ostend flights

Leeds to Bruxelles-National flights

Luton to Antwerp flights

Bristol to Charleroi Brussels flights

Stansted to Antwerp flights

Edinburgh to Antwerp flights

Liverpool to Charleroi Brussels flights

Heathrow to Ostend flights

Newcastle upon Tyne to Charleroi Brussels flights

East Midlands to Bruxelles-National flights

Southampton to Bruxelles-National flights

Birmingham to Antwerp flights

Leeds to Charleroi Brussels flights

Grimsby to Bruxelles-National flights

London City to Charleroi Brussels flights

Norwich to Bruxelles-National flights

Manchester to Ostend flights

Leeds to Antwerp flights

East Midlands to Charleroi Brussels flights

Heathrow to Antwerp flights

Newquay to Bruxelles-National flights

Exeter to Bruxelles-National flights

Darlington to Bruxelles-National flights

Southend to Antwerp flights

Doncaster to Bruxelles-National flights

London City to Antwerp flights

Complete your trip

Brussels car hire

Brussels Bruxelles-National Airport car hire

Charleroi Brussels Airport car hire

Antwerp Deurne Airport car hire

Ostende-Bruges Airport car hire

Liège Bierset Airport car hire

Liège car hire

Anderlecht car hire

Ixelles car hire

Saint-Gilles car hire

Schaerbeek car hire

Etterbeek car hire

Top airline flying from Southampton to Brussels

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£165	Average£250	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Southampton to Brussels?

When you search for this flight from Southampton to Brussels, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Brussels?

Cheapflights helps you find that perfect flight to Brussels from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Brussels with no change fees?

Yes, we can. To see specific flights from Southampton to Brussels with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Southampton to Brussels become cheaper?

Of course! You can now track prices for flights from Southampton to Brussels and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Southampton to Brussels from £101

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Brussels

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Brussels

Cheapest flights from Southampton to BrusselsExplore the most affordable flight options available from Southampton to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Explore the most affordable flight options available from Southampton to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Brussels that are best for you.

Best time to book a flight from Southampton to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Southampton with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Brussels

What is the cheapest month to book a flight from Southampton to Brussels?

How much does it cost for a return flight from Southampton to Brussels?

Reviews of airlines servicing Brussels

Get a feel of what it's like to fly with KLM from Southampton to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Brussels. 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 from for flights from Southampton to Brussels?

What is the cheapest airline to fly from Southampton to Brussels round-trip?

Can I find deals for flights from Southampton to Brussels that include hotel bookings?

How can I find direct flights from Southampton to Brussels?

Can I find deals for business class flights from Southampton to Brussels?

What is the cheapest month to book a flight from Southampton to Brussels?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southampton to Brussels

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Southampton to Brussels

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Brussels?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Brussels?

Can Cheapflights find flights from Southampton to Brussels with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Brussels become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Southampton to Brussels
Explore the most affordable flight options available from Southampton to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.