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Cheap flights from Portsmouth to Brussels from £105

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Brussels

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Brussels
Explore the most affordable flight options available from Portsmouth to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2026.

Thu 23/420:00
SOU
-
CRL
1 stop11h 40m
Multiple Airlines
Wed 29/412:15
CRL
-
SOU
2 stops21h 20m
Multiple Airlines
Deal found 23/3£159
Tue 21/418:10
SOU
-
CRL
1 stop14h 50m
Multiple Airlines
Tue 28/409:05
CRL
-
SOU
1 stop9h 35m
Multiple Airlines
Deal found 22/3£174
Mon 20/418:20
SOU
-
CRL
1 stop3h 35m
Multiple Airlines
Mon 27/422:00
CRL
-
SOU
1 stop11h 40m
Multiple Airlines
Deal found 21/3£183
Fri 8/520:00
SOU
-
BRU
1 stop12h 10m
Multiple Airlines
Fri 15/519:35
BRU
-
SOU
1 stop24h 55m
Multiple Airlines
Deal found 24/3£189
Mon 4/517:20
SOU
-
BRU
1 stop3h 55m
KLM
Mon 11/510:25
BRU
-
SOU
1 stop23h 10m
KLM
Deal found 20/3£197
Thu 23/409:05
SOU
-
BRU
1 stop6h 00m
Multiple Airlines
Wed 29/418:55
BRU
-
SOU
1 stop14h 40m
Multiple Airlines
Deal found 23/3£198
Mon 4/520:40
SOU
-
BRU
1 stop11h 45m
Multiple Airlines
Mon 11/517:20
BRU
-
SOU
2 stops16h 20m
Multiple Airlines
Deal found 21/3£202
Tue 21/417:20
SOU
-
BRU
1 stop13h 15m
KLM
Tue 28/406:20
BRU
-
SOU
1 stop3h 15m
KLM
Deal found 22/3£203
Thu 7/517:20
SOU
-
BRU
1 stop15h 20m
KLM
Thu 14/515:10
BRU
-
SOU
1 stop18h 25m
KLM
Deal found 24/3£204
Thu 9/417:20
SOU
-
BRU
1 stop13h 15m
KLM
Mon 13/406:20
BRU
-
SOU
1 stop3h 15m
KLM
Deal found 21/3£205
Thu 9/420:00
SOU
-
CRL
1 stop11h 40m
Multiple Airlines
Mon 13/409:05
CRL
-
SOU
2 stops24h 20m
Multiple Airlines
Deal found 21/3£227
Mon 20/419:20
SOU
-
BRU
1 stop13h 25m
Multiple Airlines
Mon 27/409:40
BRU
-
SOU
2 stops11h 25m
Multiple Airlines
Deal found 21/3£229

Find flight deals from Portsmouth to Brussels

Keep the following information in mind while searching for Portsmouth to Brussels flight deals. Data was last updated 25 March 2026.

Round-trip from

£159

One-way from

£105

Popular in

July

Cheapest in

November

Average price

£114
23/4-29/4
  • 23/4-29/4
  • 3 total stops
  • 33h 00m total
  • Portsmouth to Brussels
Search Deals
1/4
  • 1/4
  • 2 total stops
  • 13h 00m total
  • Portsmouth to Brussels
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£7 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 March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Brussels 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 25 March 2026.
Use the filters below to find and compare flights from Portsmouth to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Thu 23/4

20:00-08:40

1 stop11h 40m

Charleroi Brussels

Wed 29/4

21:00-08:45

1 stop12h 45m

£169

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Tue 21/4

18:10-10:00

1 stop14h 50m

Charleroi Brussels

Tue 28/4

09:05-17:40

1 stop9h 35m

£174

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Tue 21/4

17:20-07:35

1 stop13h 15m

Brussels Bruxelles-National

Tue 28/4

06:20-08:35

1 stop3h 15m

£203

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 20/4

17:20-07:35

1 stop13h 15m

Brussels Bruxelles-National

Mon 27/4

15:10-08:35

1 stop18h 25m

£204

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 4/5

20:40-09:25

1 stop11h 45m

Brussels Bruxelles-National

Mon 11/5

17:20-08:40

2 stops16h 20m

£216
Fastest return journey

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Mon 20/4

18:20-22:55

1 stop3h 35m

Charleroi Brussels

Mon 27/4

07:55-16:50

2 stops9h 55m

£222

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 8/5

09:25-08:45

2 stops22h 20m

Brussels Bruxelles-National

Fri 15/5

10:20-07:20

2 stops22h 00m

£226

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Tue 21/4

06:50-12:50

1 stop5h 00m

Charleroi Brussels

Tue 21/4

21:40-15:00

2 stops18h 20m

£233

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Thu 9/4

06:50-22:15

1 stop14h 25m

Charleroi Brussels

Mon 13/4

09:40-17:40

1 stop9h 00m

£253

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 7/5

18:20-09:20

2 stops14h 00m

Brussels Bruxelles-National

Thu 14/5

18:30-09:25

2 stops15h 55m

£290

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 25 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Portsmouth to Brussels

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

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Brussels (average of £89). Flying from Portsmouth to Brussels in February is currently the most expensive (average of £99). 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 BRU?

Find hourly flight availability from Portsmouth to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2026.

When flying from Portsmouth 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 66% versus a flight in the morning.

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated 25 March 2026.
Check out reviews from past customers who have flown with KLM from Portsmouth to Brussels 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
1,478 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Overall

7.8

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,478 reviews
KLM
7.8
Good
1,478 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Overall

7.8

Comfort

7.6

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

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

  • How long is the flight from Portsmouth to Brussels?

    There are many flights that can get you from Portsmouth to Brussels in 13h 15m. Fly via KLM to get the fastest option. The distance from Portsmouth to Brussels is about 254 mi.

  • What are the most reliable airlines from Portsmouth to Brussels?

    Before booking your flight to Brussels from Portsmouth, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (92%), Qatar Airways (90%), Cathay Pacific( 89%).

  • What are the cheapest flights from Portsmouth to Brussels?

    The cheapest flight price from Portsmouth to Brussels is £53. On average you can expect to pay £542. The most popular route, (Southampton Eastleigh - Brussels Bruxelles-National), can usually be booked for £159.

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

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

  • How can I find direct flights from Portsmouth to Brussels?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth 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 Portsmouth to Brussels?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Brussels (average of £89). Flying from Portsmouth to Brussels in February is currently the most expensive (average of £99). 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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Alternative routes for Portsmouth to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Bruxelles-National flights
Stansted to Bruxelles-National flights
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Stansted to Charleroi Brussels flights
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Manchester to Antwerp flights
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Birmingham to Charleroi Brussels flights
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Bristol to Charleroi Brussels flights
Newcastle upon Tyne to Bruxelles-National flights
Edinburgh to Antwerp flights
Newcastle upon Tyne to Charleroi Brussels flights
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Gatwick to Ostend flights
East Midlands to Bruxelles-National flights
Southend to Antwerp flights
Heathrow to Ostend flights
Birmingham to Antwerp flights
Exeter to Bruxelles-National flights
Norwich to Bruxelles-National flights
East Midlands to Charleroi Brussels flights
Leeds to Bruxelles-National flights
Heathrow to Antwerp flights
London City to Charleroi Brussels flights
Manchester to Ostend flights
Leeds to Charleroi Brussels flights
Liverpool to Charleroi Brussels flights
Southampton to Charleroi Brussels flights
Newquay to Bruxelles-National flights
Doncaster to Bruxelles-National flights
Leeds to Antwerp flights
Darlington to Bruxelles-National flights
Grimsby to Bruxelles-National flights

Top 3 airlines flying from Portsmouth to Brussels

Discover the top 3 airlines that operate flights from Portsmouth to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£88Average£110FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£95Average£130FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£133Average£215FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

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

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

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Yes! Cheapflights helps users easily find flights from Portsmouth to Brussels with no change fees.

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