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).

What are the cheapest flights from Portsmouth to Belgium?

Looking at all options, your cheapest flight can be booked for £62. While the most popular route (Southampton Eastleigh - Brussels Bruxelles-National) can be booked for £146 on average, our data indicates £1,069 when flying from Portsmouth to Belgium.

What are the most reliable airlines from Portsmouth to Belgium?

Consider British Airways (80%), Cathay Pacific (79%) or American Airlines (78%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Belgium.

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

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

How can I find direct flights from Portsmouth to Belgium?

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

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

Yes. Cheapflights offers flight deals from Portsmouth 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.

£61+ Cheap Flights from Portsmouth to Belgium

Cheap flight deals from Portsmouth to Belgium

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Portsmouth to Belgium
Explore the most affordable flight options available from Portsmouth to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Mon 5/1020:40 -

1 stop11h 45m

Thu 8/1021:35 -

1 stop12h 10m

Deal found 29/8£128

Mon 7/920:40 -

1 stop11h 45m

Wed 9/919:00 -

1 stop14h 35m

Deal found 2/9£133

Thu 1/1020:00 -

1 stop11h 40m

Thu 8/1021:05 -

1 stop12h 40m

Deal found 1/9£146

Mon 7/920:40 -

2 stops16h 30m

Wed 9/917:40 -

2 stops15h 55m

Deal found 2/9£157

Sun 13/1216:05 -

1 stop6h 05m

Thu 17/1210:15 -

1 stop10h 15m

Deal found 31/8£160

Thu 1/1017:20 -

1 stop15h 20m

Thu 8/1021:35 -

1 stop12h 10m

Deal found 1/9£165

Sun 13/1216:05 -

1 stop15h 35m

Thu 17/1206:50 -

2 stops13h 40m

Deal found 2/9£166

Wed 30/920:00 -

1 stop12h 35m

Sat 3/1017:20 -

1 stop16h 15m

Deal found 28/8£172

Thu 15/1020:00 -

1 stop12h 20m

Thu 22/1018:25 -

1 stop15h 20m

Deal found 31/8£178

Find flight deals from Portsmouth to Belgium

Round-trip from	£128
One-way from	£61
Popular in	May
Cheapest in	March
Average price	£126

5/10-8/10
2 total stops
23h 55m total
Portsmouth to Belgium

Search Deals

12/10
1 total stop
11h 45m total
Portsmouth to Belgium

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£8 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Sun 13/12

16:05-23:10

1 stop6h 05m

Brussels Bruxelles-National

Thu 17/12

10:15-19:30

1 stop10h 15m

£160

SouthamptonBrussels

SOU Southampton Eastleigh - CRL Charleroi Brussels

SOUCRL

Southampton Eastleigh

Thu 1/10

17:20-08:40

1 stop14h 20m

Charleroi Brussels

Thu 8/10

14:10-08:45

2 stops19h 35m

£162

SouthamptonBrussels

SOU Southampton Eastleigh - CRL Charleroi Brussels

SOUCRL

Southampton Eastleigh

Sun 13/12

16:05-08:40

1 stop15h 35m

Charleroi Brussels

Thu 17/12

06:50-19:30

2 stops13h 40m

£166

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Wed 30/9

20:00-09:35

1 stop12h 35m

Brussels Bruxelles-National

Sat 3/10

17:20-08:35

1 stop16h 15m

£172

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Thu 15/10

20:00-09:20

1 stop12h 20m

Brussels Bruxelles-National

Thu 22/10

18:25-08:45

1 stop15h 20m

£178

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Thu 1/10

17:20-09:40

1 stop15h 20m

Brussels Bruxelles-National

Thu 8/10

16:40-08:45

2 stops17h 05m

£191

SouthamptonBrussels

SOU Southampton Eastleigh - CRL Charleroi Brussels

SOUCRL

Southampton Eastleigh

Fri 16/10

12:20-22:55

2 stops9h 35m

Charleroi Brussels

Sun 18/10

18:25-08:40

2 stops15h 15m

£210

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Thu 25/2

09:20-18:15

1 stop7h 55m

Brussels Bruxelles-National

Fri 5/3

20:50-08:40

1 stop12h 50m

£329

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Sat 28/11

17:05-09:35

1 stop15h 30m

Brussels Bruxelles-National

Mon 14/12

10:15-19:30

1 stop10h 15m

£350

SouthamptonBrussels

SOU Southampton Eastleigh - BRU Brussels Bruxelles-National

SOUBRU

Southampton Eastleigh

Sat 14/11

17:05-09:35

1 stop15h 30m

Brussels Bruxelles-National

Fri 20/11

20:50-11:55

1 stop16h 05m

£355

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 19 resultsSorted by cheapest first

Best time to book a flight from Portsmouth to Belgium

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

SOU-BRU

SOU-CRL

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 Portsmouth to Belgium

P0R-BE0

SOU-BRU

SOU-CRL

What is the cheapest time of day to fly from P0R to BE?

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Belgium in the evening. If you’re flexible enough to do this you can expect to save up to 76% on your trip compared to booking a flight in the morning.

Weekly flight availability from Portsmouth to Belgium

The most flights from P0R to BE0 are scheduled on a Monday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

What are the most reliable airlines from Portsmouth to Belgium?
Consider British Airways (80%), Cathay Pacific (79%) or American Airlines (78%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Belgium.
What are the cheapest flights from Portsmouth to Belgium?
Looking at all options, your cheapest flight can be booked for £62. While the most popular route (Southampton Eastleigh - Brussels Bruxelles-National) can be booked for £146 on average, our data indicates £1,069 when flying from Portsmouth to Belgium.
Can I find deals for flights from Portsmouth to Belgium that include hotel bookings?
Yes. In addition to deals on Portsmouth to Belgium flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to Belgium?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Belgium.
Can I find deals for business class flights from Portsmouth to Belgium?
Yes. Cheapflights offers flight deals from Portsmouth 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Portsmouth to Belgium

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£94	Average£112	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Brussels Airlines	Cheapest£94	Average£142	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights

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

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Belgium for you. Better yet — we are completely free to use.

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

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

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

Not ready to book yet? You can track prices for flights from Portsmouth to Belgium on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portsmouth to Belgium from £61

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Belgium

Cheapest flights from Portsmouth to BelgiumExplore the most affordable flight options available from Portsmouth to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Explore the most affordable flight options available from Portsmouth to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Portsmouth to BelgiumDiscover carefully curated flight deals from Portsmouth to Belgium that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Discover carefully curated flight deals from Portsmouth to Belgium that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Last-minute flights from Portsmouth to BelgiumDiscover last-minute flight deals from Portsmouth to Belgium. Data last updated 2 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to Belgium. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Portsmouth to BelgiumSearch for one-way flight options from Portsmouth to Belgium. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Search for one-way flight options from Portsmouth to Belgium. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

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

Best time to book a flight from Portsmouth to Belgium

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

Cheapflights Insights

What is the cheapest time of day to fly from P0R to BE?

Find hourly flight availability from Portsmouth to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 September 2026.

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Belgium in the evening. If you’re flexible enough to do this you can expect to save up to 76% on your trip compared to booking a flight in the morning.

Weekly flight availability from Portsmouth to Belgium

Explore weekly flight availability from Portsmouth to Belgium. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 September 2026.

The most flights from P0R to BE0 are scheduled on a Monday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

What are the most reliable airlines from Portsmouth to Belgium?

What are the cheapest flights from Portsmouth to Belgium?

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

How can I find direct flights from Portsmouth to Belgium?

Can I find deals for business class flights from Portsmouth 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 Portsmouth to Belgium

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

Complete your trip

Complete your trip to Belgium by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Portsmouth to Belgium by cabin class

Find flights from Portsmouth to Belgium, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portsmouth and Belgium flights

Browse other Portsmouth and Belgium flight options. Last updated on 2 September 2026.

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Top 2 airlines flying from Portsmouth to Belgium

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

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

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

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

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Book with Flexibility

Travel Smart

Cheapest flights from Portsmouth to Belgium
Explore the most affordable flight options available from Portsmouth to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Portsmouth to Belgium
Discover carefully curated flight deals from Portsmouth to Belgium that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Last-minute flights from Portsmouth to Belgium
Discover last-minute flight deals from Portsmouth to Belgium. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Portsmouth to Belgium
Search for one-way flight options from Portsmouth to Belgium. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.