What are the cheapest airlines to fly from Southampton to Belgium one-way?

For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £79. Users have also found prices from £122 and £275 on KLM and British Airways, respectively.

In terms of precipitation, rainfall in Belgium 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 Belgium when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Belgium, 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).

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

Travelers have found it’s best to book a flight 54 days in advance to save up to 34% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 54 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Southampton to Belgium 1-2 weeks in advance for as low as £137, or £145 for flights within the next 24 hours.

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

January is one of the best times of the year to fly to Belgium from Southampton. Prices for January average £123 per person but you can even find prices for as low as £78. The most expensive prices can be found in the month of July. Opting for a January flight can save you 22% on your journey compared to booking in July

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Belgium as you normally would.

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

For a flight from Southampton to Belgium, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.

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

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

How can I find direct flights from Southampton to Belgium?

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

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

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

£73+ Flights from Southampton to Belgium

Cheap flight deals from Southampton to Belgium

Round-trip from	£178
One-way from	£73
Popular in	July
Cheapest in	January
Average price	£151

31/8-7/9
3 total stops
36h 05m total
Southampton to Belgium

Search Deals

1/9
1 total stop
19h 25m total
Southampton to Belgium

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Southampton to Belgium

Cheapest flights from Southampton to Belgium
Explore the most affordable flight options available from Southampton to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Sun 31/821:30SOU - BRU

2 stops23h 25mMultiple Airlines

Sun 7/921:30BRU - SOU

1 stop12h 40mMultiple Airlines

Deal found 17/7£178

Mon 24/1118:05SOU - BRU

1 stop3h 15mKLM

Wed 3/1206:15BRU - SOU

1 stop2h 55mKLM

Deal found 16/7£193

Wed 23/712:30SOU - CRL

1 stop7h 15mMultiple Airlines

Fri 25/708:45CRL - SOU

2 stops23h 50mMultiple Airlines

Deal found 17/7£413

Mon 24/1111:40SOU - BRU

2 stops7h 15mBritish Airways

Wed 3/1214:35BRU - SOU

2 stops7h 20mBritish Airways

Deal found 16/7£419

Best flights from Southampton to Belgium
Discover carefully curated flight deals from Southampton to Belgium that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.

Sun 31/821:30SOU - BRU

2 stops23h 25mMultiple Airlines

Sun 7/921:30BRU - SOU

1 stop12h 40mMultiple Airlines

Deal found 17/7£178

Mon 24/1118:05SOU - BRU

1 stop3h 15mKLM

Wed 3/1206:15BRU - SOU

1 stop2h 55mKLM

Deal found 16/7£193

Mon 24/1111:40SOU - BRU

2 stops7h 15mBritish Airways

Wed 3/1214:35BRU - SOU

2 stops7h 20mBritish Airways

Deal found 16/7£419

Sun 17/808:45SOU - CRL

1 stop5h 00mMultiple Airlines

Mon 18/811:50CRL - SOU

1 stop9h 05mMultiple Airlines

Deal found 16/7£533

Last-minute flights from Southampton to Belgium
Discover last-minute flight deals from Southampton to Belgium. Data last updated 18 July 2025 and is based on user searches.

Wed 23/712:30SOU - CRL

1 stop7h 15mMultiple Airlines

Fri 25/708:45CRL - SOU

2 stops23h 50mMultiple Airlines

Deal found 17/7£413

Wed 23/718:25SOU - BRU

1 stop12h 05mMultiple Airlines

Fri 25/706:10BRU - SOU

2 stops27h 35mMultiple Airlines

Deal found 17/7£468

Wed 23/718:25SOU - BRU

1 stop12h 05mKLM

Fri 25/706:10BRU - SOU

1 stop3h 35mKLM

Deal found 17/7£521

Thu 24/708:30SOU - BRU

2 stops24h 25mBritish Airways

Wed 30/715:15BRU - SOU

2 stops17h 45mBritish Airways

Deal found 17/7£607

Sun 17/808:55SOU - BRU

2 stops24h 00mBritish Airways

Mon 18/819:05BRU - SOU

2 stops17h 55mBritish Airways

Deal found 16/7£562

Fri 22/818:25SOU - BRU

1 stop14h 25mKLM

Mon 25/806:10BRU - SOU

1 stop3h 35mKLM

Deal found 16/7£228

Sun 31/821:30SOU - BRU

2 stops23h 25mMultiple Airlines

Sun 7/921:30BRU - SOU

1 stop12h 40mMultiple Airlines

Deal found 17/7£178

One-way flights from Southampton to Belgium
Search for one-way flight options from Southampton to Belgium. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.

Mon 1/920:30SOU - CRL

1 stop19h 25mMultiple Airlines

Deal found 16/7£73

Thu 28/820:00SOU - BRU

1 stop12h 40mAer Lingus

Deal found 16/7£79

Sat 30/808:25SOU - BRU

2 stops23h 40mMultiple Airlines

Deal found 16/7£95

Sat 30/818:05SOU - BRU

1 stop12h 25mKLM

Deal found 16/7£122

Tue 14/1008:40SOU - BRU

2 stops9h 55mBritish Airways

Deal found 17/7£275

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sun 31/8

21:30-21:55

2 stops23h 25m

Brussels Bruxelles-National

Sun 7/9

21:30-09:10

1 stop12h 40m

£178

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 24/11

18:05-22:20

1 stop3h 15m

Brussels Bruxelles-National

Wed 3/12

06:15-08:10

1 stop2h 55m

£193

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 24/11

11:40-19:55

2 stops7h 15m

Brussels Bruxelles-National

Wed 3/12

14:35-20:55

2 stops7h 20m

£419

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Sun 17/8

08:45-14:45

1 stop5h 00m

Charleroi Brussels

Mon 18/8

11:50-19:55

1 stop9h 05m

£533

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Mon 1/9

20:30-16:55

1 stop19h 25m

£73

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 28/8

20:00-09:40

1 stop12h 40m

£79

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 30/8

08:25-09:05

2 stops23h 40m

£95

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 30/8

18:05-07:30

1 stop12h 25m

£122

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Tue 14/10

08:40-19:35

2 stops9h 55m

£275

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Best time to book a flight from Southampton to Belgium

Have a flexible travel schedule? Discover the best time to fly to Belgium 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 Belgium

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

Currently, January is the cheapest month in which you can book a flight from Southampton to Belgium (average of £117). Flying from Southampton to Belgium in July is currently the most expensive (average of £172). 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.

Reviews of airlines servicing Belgium

Check out reviews from past customers who have flown with KLM, Aer Lingus, andBritish Airways from Southampton to Belgium to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,374 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,374 reviews

KLM

7.8

Good

1,374 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,170 reviews

KLM

7.8

Good

1,374 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.6

Okay

7,151 reviews

KLM

7.8

Good

1,374 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What airport do you fly from for flights from Southampton to Belgium?
For a flight from Southampton to Belgium, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city.
What are the cheapest airlines to fly from Southampton to Belgium one-way?
For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £79. Users have also found prices from £122 and £275 on KLM and British Airways, respectively.
Can I find deals for flights from Southampton to Belgium that include hotel bookings?
Yes. In addition to deals on Southampton to Belgium flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Belgium?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Belgium.
Can I find deals for business class flights from Southampton to Belgium?
Yes. Cheapflights offers flight deals from Southampton to Belgium 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 Belgium?
Currently, January is the cheapest month in which you can book a flight from Southampton to Belgium (average of £117). Flying from Southampton to Belgium in July is currently the most expensive (average of £172). 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

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Top airline flying from Southampton to Belgium

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£160	Average£235	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Southampton to Belgium 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 Southampton to Belgium?

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 Southampton to Belgium.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southampton to Belgium, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Southampton to Belgium from £73

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Belgium

Keep the following information in mind while searching for Southampton to Belgium flight deals. Data was last updated 18 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Belgium

Cheapest flights from Southampton to BelgiumExplore the most affordable flight options available from Southampton to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Explore the most affordable flight options available from Southampton to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Southampton to Belgium

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

Cheapflights Insights

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

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

Reviews of airlines servicing Belgium

Check out reviews from past customers who have flown with KLM, Aer Lingus, andBritish Airways from Southampton to Belgium to help guide your decision. You can also see how each airline stacks up 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 Belgium. 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 Belgium?

What are the cheapest airlines to fly from Southampton to Belgium one-way?

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

How can I find direct flights from Southampton to Belgium?

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

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

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 Belgium

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

Top airline flying from Southampton to Belgium

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 Belgium?

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

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

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

100% Free

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Cheapest flights from Southampton to Belgium
Explore the most affordable flight options available from Southampton to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.