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Cheap flights from Portsmouth to Brussels from £150

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£150

Popular in

June

Cheapest in

April

Average price

£252
21/10-23/10
  • 21/10-23/10
  • 2 total stops
  • 24h 00m total
  • Portsmouth to Brussels
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£16 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 September 2025
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Find flight deals from Portsmouth to Brussels

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 17 September 2025.

Tue 21/1020:00SOU - BRU
1 stop12h 00mMultiple Airlines
Thu 23/1021:40BRU - SOU
1 stop12h 00mMultiple Airlines
Deal found 16/9£150
Thu 30/1020:10SOU - BRU
1 stop11h 40mMultiple Airlines
Thu 6/1109:25BRU - SOU
1 stop7h 10mMultiple Airlines
Deal found 15/9£158
Thu 30/1020:10SOU - BRU
1 stop12h 25mAer Lingus
Thu 6/1110:15BRU - SOU
1 stop6h 20mAer Lingus
Deal found 14/9£173
Fri 31/1017:45SOU - BRU
2 stops13h 45mMultiple Airlines
Fri 7/1109:40BRU - SOU
1 stop11h 00mMultiple Airlines
Deal found 16/9£214
Fri 31/1017:30SOU - BRU
1 stop3h 50mKLM
Sun 2/1105:15BRU - SOU
1 stop3h 35mKLM
Deal found 15/9£378

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 17 September 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

Tue 21/10

20:00-09:00

1 stop12h 00m

Brussels Bruxelles-National

Thu 23/10

21:40-08:40

1 stop12h 00m

£150

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 30/10

20:10-08:50

1 stop11h 40m

Brussels Bruxelles-National

Thu 6/11

09:25-15:35

1 stop7h 10m

£158

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 30/10

20:10-09:35

1 stop12h 25m

Brussels Bruxelles-National

Thu 6/11

10:15-15:35

1 stop6h 20m

£173

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 31/10

20:10-08:30

1 stop11h 20m

Brussels Bruxelles-National

Fri 7/11

09:40-19:40

1 stop11h 00m

£189

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 31/10

17:30-22:20

1 stop3h 50m

Brussels Bruxelles-National

Sun 2/11

05:15-07:50

1 stop3h 35m

£378

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sun 5/10

18:25-09:40

1 stop14h 15m

£161

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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 £117). Flying from Portsmouth to Brussels in July is currently the most expensive (average of £166). 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 17 September 2025.

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

What is the cheapest day to fly from Portsmouth to Brussels?

Use this chart to determine the cheapest time to fly return from Portsmouth to Brussels. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Brussels flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Brussels

Explore weekly flight availability from Portsmouth to Brussels. 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 17 September 2025.

The most flights from P0R to BR1 are scheduled on a Tuesday (32 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 on average).

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 17 September 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
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 12h 25m. Fly via Aer Lingus 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: JetBlue (80%), Japan Airlines (57%), Malaysia Airlines( 56%).

  • 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 £555. The most popular route, (Southampton Eastleigh - Brussels Bruxelles-National), can usually be booked for £150.

  • 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 £117). Flying from Portsmouth to Brussels in July is currently the most expensive (average of £166). 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
Gatwick to Bruxelles-National flights
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Birmingham to Antwerp flights
Darlington to Bruxelles-National flights
Luton to Antwerp flights
Southampton to Bruxelles-National flights
Manchester to Ostend flights
Grimsby to Bruxelles-National flights
East Midlands to Charleroi Brussels flights
Newquay to Bruxelles-National flights
Norwich to Bruxelles-National flights
Heathrow to Antwerp flights
Southend to Antwerp flights
Doncaster to Bruxelles-National flights
London City to Antwerp flights
Leeds to Antwerp 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£84Average£114FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£95Average£112FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
RyanairCheapest£103Average£152FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
KLMCheapest£140Average£221FlexibilityNo 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.

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

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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