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Cheap flights from Portsmouth to Brussels from £80

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
23 Jul — 30 Jul1
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 23 June 2026.

Thu 2/720:00
SOU
-
BRU
1 stop12h 20m
Multiple Airlines
Wed 8/719:00
BRU
-
SOU
1 stop14h 35m
Multiple Airlines
Deal found 19/6£190
Thu 20/820:00
SOU
-
BRU
1 stop12h 40m
Multiple Airlines
Sun 23/809:50
BRU
-
SOU
1 stop10h 40m
Multiple Airlines
Deal found 21/6£221
Thu 2/717:20
SOU
-
BRU
1 stop15h 20m
KLM
Wed 8/715:10
BRU
-
SOU
1 stop18h 35m
KLM
Deal found 18/6£258
Fri 19/606:45
SOU
-
CRL
1 stop7h 45m
Multiple Airlines
Fri 19/621:35
CRL
-
SOU
1 stop21h 05m
Multiple Airlines
Deal found 18/6£553

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 23 June 2026.

Round-trip from

£190

One-way from

£80

Popular in

May

Cheapest in

November

Average price

£150
2/7-8/7
  • 2/7-8/7
  • 2 total stops
  • 26h 55m total
  • Portsmouth to Brussels
Search Deals
29/8
  • 29/8
  • 1 total stop
  • 12h 15m total
  • Portsmouth to Brussels
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£11 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 June 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 23 June 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 - BRU

SOUBRU

Southampton Eastleigh

Thu 20/8

20:00-09:40

1 stop12h 40m

Brussels Bruxelles-National

Sun 23/8

09:50-19:30

1 stop10h 40m

£221

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Wed 9/9

20:00-09:40

1 stop12h 40m

Brussels Bruxelles-National

Wed 30/9

10:20-19:30

1 stop10h 10m

£298

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Wed 9/9

20:00-09:40

1 stop12h 40m

Brussels Bruxelles-National

Wed 30/9

10:20-20:45

2 stops11h 25m

£368
Fastest return journey

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 24/10

20:00-10:35

1 stop13h 35m

Brussels Bruxelles-National

Sat 31/10

10:15-16:35

1 stop7h 20m

£375

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Fri 28/8

06:45-20:45

2 stops13h 00m

Brussels Bruxelles-National

Mon 31/8

21:25-08:40

1 stop12h 15m

£403

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 28/9

12:35-19:10

2 stops29h 35m

Brussels Bruxelles-National

Wed 30/9

16:00-08:25

2 stops17h 25m

£458

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 3/9

08:55-09:55

2 stops24h 00m

Brussels Bruxelles-National

Mon 7/9

15:05-08:25

2 stops18h 20m

£480
Cheapest one-way

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sat 29/8

20:00-09:15

1 stop12h 15m

£80

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 20/7

20:40-09:25

1 stop11h 45m

£104

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Sun 2/8

20:00-09:00

1 stop12h 00m

£145

Flights are sorted by cheapest return flights first.

Deals found on 19/6

Showing 1-10 of 17 resultsSorted by cheapest first
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 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 23 June 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 in the evening, which can drop the price by up to 76% versus a flight in the morning.

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 23 June 2026.

The most flights from P0R to BR1 are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 23 June 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
1,530 reviews
Check prices

Overall

7.8

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,530 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Overall

7.8

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 40m. 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: British Airways (79%), Cathay Pacific (76%), American Airlines( 76%).

  • What are the cheapest flights from Portsmouth to Brussels?

    The cheapest flight price from Portsmouth to Brussels is £60. On average you can expect to pay £596. The most popular route, (Southampton Eastleigh - Brussels Bruxelles-National), can usually be booked for £221.

  • 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.

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
Luton to Bruxelles-National flights
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Manchester to Bruxelles-National flights
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Stansted to Charleroi Brussels flights
Luton to Charleroi Brussels flights
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Southend to Bruxelles-National flights
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Edinburgh to Bruxelles-National flights
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Edinburgh to Charleroi Brussels flights
Stansted to Antwerp flights
Gatwick to Antwerp flights
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Manchester to Antwerp flights
Birmingham to Charleroi Brussels flights
Newcastle upon Tyne to Bruxelles-National flights
Leeds to Bruxelles-National flights
Luton to Antwerp flights
Bristol to Charleroi Brussels flights
Southampton to Bruxelles-National flights
Gatwick to Ostend flights
Leeds to Charleroi Brussels flights
Manchester to Ostend flights
Newcastle upon Tyne to Charleroi Brussels flights
Heathrow to Ostend flights
Liverpool to Bruxelles-National flights
East Midlands to Bruxelles-National flights
East Midlands to Charleroi Brussels flights
Southend to Antwerp flights
Birmingham to Antwerp flights
Liverpool to Charleroi Brussels flights
Grimsby to Bruxelles-National flights
Heathrow to Antwerp flights
Edinburgh to Antwerp flights
Doncaster to Bruxelles-National flights
London City to Charleroi Brussels flights
London City to Antwerp flights
Leeds to Antwerp flights
Exeter to Bruxelles-National flights
Newquay to Bruxelles-National flights
Southampton to Charleroi Brussels flights
Norwich 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 23 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£92Average£111FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£98Average£132FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£180Average£253FlexibilityNo cancel feeOn-time75%
Search KLM flights

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 Brussels?

Cheapflights helps you search for flights from Portsmouth to Brussels 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 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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