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

To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £79. KLM flights start at £122 while deals on British Airways start at £275 one-way.

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 £70. While the most popular route (Southampton Eastleigh - Brussels Bruxelles-National) can be booked for £178 on average our data indicates £871 when flying from Portsmouth to Belgium.

What are the most reliable airlines from Portsmouth to Belgium?

Consider American Airlines (82%), Malaysia Airlines (81%) or Japan Airlines (79%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Belgium.

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

To save up to 34% on this flight, we recommend booking at least 54 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portsmouth to Belgium from £137 1-2 weeks out and tickets from £145 for flights departing within the next 72 hours.

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

Our data shows that January tends to be the cheapest month to fly to Belgium from Portsmouth. Users have commonly found prices around £123 for the month, but tickets can be as low as £78. Due to multiple factors, prepare for potentially higher prices in July.

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.

£73+ Flights from Portsmouth to Belgium

Cheap flight deals from Portsmouth 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
Portsmouth to Belgium

Search Deals

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

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 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 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 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 Portsmouth to Belgium
Discover last-minute flight deals from Portsmouth 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 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 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 Portsmouth 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 Portsmouth to Belgium

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

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Belgium (average of £117). Flying from Portsmouth 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.

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

When flying from Portsmouth to Belgium, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portsmouth to Belgium

The most flights from P0R to BE0 are scheduled on a Thursday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Belgium

Read through reviews of airlines operating flights from Portsmouth to Belgium, such as KLM, Aer Lingus, andBritish Airways. Reviews also offer insight into each airline's 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 are the cheapest airlines to fly from Portsmouth to Belgium one-way?
To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £79. KLM flights start at £122 while deals on British Airways start at £275 one-way.
What are the most reliable airlines from Portsmouth to Belgium?
Consider American Airlines (82%), Malaysia Airlines (81%) or Japan Airlines (79%) 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 £70. While the most popular route (Southampton Eastleigh - Brussels Bruxelles-National) can be booked for £178 on average our data indicates £871 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.
What is the cheapest month to book a flight from Portsmouth to Belgium?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to Belgium (average of £117). Flying from Portsmouth 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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Direct flights to Las Palmas de Gran Canaria

Direct flights to Zurich

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Top 4 airlines flying from Portsmouth to Belgium

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£84	Average£105	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Brussels Airlines	Cheapest£99	Average£122	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Ryanair	Cheapest£105	Average£128	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
KLM	Cheapest£142	Average£223	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

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 £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 Portsmouth to Belgium

Keep the following information in mind while searching for Portsmouth 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 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 18 July 2025.

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 18 July 2025.

Cheapflights Fare Finder

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

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

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

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 18 July 2025.

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 18 July 2025.

Reviews of airlines servicing Belgium

Read through reviews of airlines operating flights from Portsmouth to Belgium, such as KLM, Aer Lingus, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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?

What is the cheapest month to book a flight 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.

Top 4 airlines flying from Portsmouth 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 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 18 July 2025.