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Cheap flights from Portsmouth to Brussels from £67

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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Find 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 24 October 2025.

Sat 6/1215:20SOU - BRU
2 stops16h 25mMultiple Airlines
Sat 13/1221:55BRU - SOU
2 stops17h 50mMultiple Airlines
Deal found 22/10£181
Mon 8/1208:30SOU - BRU
1 stop11h 15mMultiple Airlines
Mon 15/1209:40BRU - SOU
1 stop10h 40mMultiple Airlines
Deal found 23/10£184
Tue 25/1120:10SOU - BRU
1 stop12h 25mMultiple Airlines
Sat 6/1209:05BRU - SOU
1 stop24h 40mMultiple Airlines
Deal found 23/10£193
Sun 7/1220:10SOU - BRU
1 stop11h 55mMultiple Airlines
Sun 14/1207:20BRU - SOU
1 stop8h 25mMultiple Airlines
Deal found 23/10£204
Tue 25/1115:20SOU - CRL
2 stops19h 40mMultiple Airlines
Sat 6/1208:30CRL - SOU
2 stops25h 15mMultiple Airlines
Deal found 23/10£207
Mon 29/1218:15SOU - CRL
1 stop13h 00mMultiple Airlines
Mon 5/106:50CRL - SOU
1 stop13h 30mMultiple Airlines
Deal found 22/10£212
Thu 30/1015:50SOU - CRL
2 stops15h 50mMultiple Airlines
Sun 2/1115:55CRL - SOU
2 stops17h 50mMultiple Airlines
Deal found 22/10£299

Cheap flight deals from Portsmouth to Brussels

Keep the following information in mind while searching for Portsmouth to Brussels flight deals. Data was last updated 24 October 2025.

Round-trip from

£181

One-way from

£67

Popular in

June

Cheapest in

April

Average price

£207
6/12-13/12
  • 6/12-13/12
  • 4 total stops
  • 34h 15m total
  • Portsmouth to Brussels
Search Deals
easyJet
  • easyJet
  • 18/12
  • 1 total stop
  • 5h 10m total
  • Portsmouth to Brussels
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 24 October 2025.
Use the filters below to find and compare flights from Portsmouth to Brussels that are best for you.

Fly from

Portsmouth

Fly to

Brussels

Route

Depart

Return

Price

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 6/12

15:20-08:45

2 stops16h 25m

Brussels Bruxelles-National

Sat 13/12

08:00-14:45

1 stop7h 45m

£182

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 8/12

08:30-20:45

1 stop11h 15m

Brussels Bruxelles-National

Mon 15/12

09:40-19:20

1 stop10h 40m

£184

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Tue 25/11

20:10-09:35

1 stop12h 25m

Brussels Bruxelles-National

Sat 6/12

09:05-08:45

1 stop24h 40m

£193

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sun 7/12

20:10-09:05

1 stop11h 55m

Brussels Bruxelles-National

Sun 14/12

07:20-14:45

1 stop8h 25m

£204

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Tue 25/11

15:20-12:00

2 stops19h 40m

Charleroi Brussels

Sat 6/12

08:30-08:45

2 stops25h 15m

£207

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Mon 29/12

18:15-08:15

1 stop13h 00m

Charleroi Brussels

Mon 5/1

06:50-19:20

1 stop13h 30m

£212

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 29/12

20:10-09:10

1 stop12h 00m

Brussels Bruxelles-National

Mon 5/1

08:45-19:20

1 stop11h 35m

£222

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 18/12

14:15-20:25

1 stop5h 10m

£67

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Fri 21/11

19:50-18:20

1 stop21h 30m

£82

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 21/11

19:50-14:35

1 stop17h 45m

£98

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 15 results
1
2

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, March is the cheapest month in which you can book a flight from Portsmouth to Brussels (average of £83). Flying from Portsmouth to Brussels in August is currently the most expensive (average of £94). 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 24 October 2025.

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 4% versus a flight in the afternoon.

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

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 24 October 2025.
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
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • 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: JetBlue (81%), Japan Airlines (63%), Malaysia Airlines( 63%).

  • What are the cheapest flights from Portsmouth to Brussels?

    The cheapest flight price from Portsmouth to Brussels is £52. On average you can expect to pay £508. The most popular route, (Southampton Eastleigh - Brussels Bruxelles-National), can usually be booked for £181.

  • 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, March is the cheapest month in which you can book a flight from Portsmouth to Brussels (average of £83). Flying from Portsmouth to Brussels in August is currently the most expensive (average of £94). 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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Alternative routes for Portsmouth to Brussels

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

Top 4 airlines flying from Portsmouth to Brussels

Discover the top 4 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 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£86Average£108FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£97Average£117FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
RyanairCheapest£108Average£156FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
KLMCheapest£143Average£226FlexibilityNo 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.

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

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

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Of course! You can now track prices for flights from Portsmouth 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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