£70 Find Cheap Flights from Portsmouth to Brussels – Compare and Save

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Everything you should know

Cheapest return flight
£132
Typical prices: £230-£305
Multiple Airlines
Fri 5/10Tue 9/10
SOU - BRU • 1 stop
Cheapest one-way flight
£70
Typical prices: £202-£250
Multiple Airlines
Fri 28/9
SOU - BRU • 1 stop
When to travel
May
Cheapest • 15% price drop
June
Most popular
Good to know
+1
Good to know
+1
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Flight Deals

Cheap Flights from Portsmouth to Brussels

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Brussels

Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
20:40 - 09:25SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
11h 45m1 stop Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
10:20 - 19:30BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
10h 10m1 stop Dublin
£132Multiple Airlines
Tue, 20 Oct - Wed, 21 Oct
Multiple Airlines Logo
20:00 - 09:55SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
12h 55m1 stop Dublin
Multiple Airlines Logo
19:00 - 08:35BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
14h 35m1 stop Palma de Mallorca Son Sant Joan
£146Multiple Airlines
Tue, 20 Oct - Wed, 21 Oct
Multiple Airlines Logo
13:25 - 09:55SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
19h 30m2 stops Glasgow Intl Dublin
Multiple Airlines Logo
19:00 - 08:35BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
14h 35m1 stop Palma de Mallorca Son Sant Joan
£157Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
Aer Lingus Logo
20:00 - 09:40SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
12h 40m1 stop Dublin
Aer Lingus Logo
19:05 - 08:50BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
14h 45m1 stop Dublin
£160Aer Lingus
Wed, 14 Oct - Mon, 19 Oct
Multiple Airlines Logo
08:55 - 22:55SOU  Southampton Eastleigh-CRL Charleroi Brussels
13h 00m2 stops Belfast City Manchester
Multiple Airlines Logo
22:00 - 08:40CRL  Charleroi Brussels-SOU Southampton Eastleigh
11h 40m1 stop Dublin
£160Multiple Airlines
Wed, 14 Oct - Mon, 19 Oct
Multiple Airlines Logo
12:35 - 22:55SOU  Southampton Eastleigh-CRL Charleroi Brussels
9h 20m2 stops Belfast City Manchester
Multiple Airlines Logo
22:00 - 12:50CRL  Charleroi Brussels-SOU Southampton Eastleigh
15h 50m2 stops Dublin Glasgow Intl
£164Multiple Airlines
Mon, 5 Oct - Fri, 9 Oct
Multiple Airlines Logo
12:55 - 09:10SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
19h 15m2 stops Glasgow Intl Dublin
Multiple Airlines Logo
10:20 - 19:30BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
10h 10m1 stop Dublin
£186Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
Multiple Airlines Logo
20:00 - 09:40SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
12h 40m1 stop Dublin
Multiple Airlines Logo
19:05 - 08:40BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
14h 35m2 stops Dublin Glasgow Intl
£197Multiple Airlines
Thu, 22 Oct - Thu, 29 Oct
Multiple Airlines Logo
09:25 - 23:55SOU  Southampton Eastleigh-BRU Brussels Bruxelles-National
13h 30m2 stops Faro Lisbon Humberto Delgado
Multiple Airlines Logo
15:30 - 19:30BRU  Brussels Bruxelles-National-SOU Southampton Eastleigh
5h 00m1 stop Dublin
£204Multiple Airlines
Thu, 10 Dec - Sun, 13 Dec
Multiple Airlines Logo
09:20 - 18:25SOU  Southampton Eastleigh-CRL Charleroi Brussels
8h 05m1 stop Alicante
Multiple Airlines Logo
08:20 - 19:30CRL  Charleroi Brussels-SOU Southampton Eastleigh
12h 10m2 stops Bergamo Orio Al Serio Dublin
£209Multiple Airlines
Booking Insights

Price, demand, and travel trends for Portsmouth to Brussels flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Portsmouth to Brussels with more confidence.

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

Aer Lingus (£160) offered the cheapest return ticket from Portsmouth to Brussels in the last 5 days.

Find deals

Key details for Portsmouth to Brussels flights

Low season

February

Cheapest flight

£70
Most popular time to fly (46% more expensive on average)
Flights from Southampton to Brussels Bruxelles-National Airport

When to book flights from Portsmouth to Brussels

Are your dates flexible? Find out the best times to travel from Portsmouth to Brussels based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Portsmouth to Brussels flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which cabin classes can I book on flights from Portsmouth to Brussels?

    Only Economy class is available on flights from Portsmouth to Brussels.

  • Which airports do connecting flights from Portsmouth to Brussels pass through?

    Connecting flights from Portsmouth to Brussels most commonly pass through:

    • Amsterdam Schiphol (AMS) – 92% of one-stop connections
    • London Heathrow (LHR) – 8% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Portsmouth to Brussels?

    Yes. Being flexible with your travel dates can save you up to 29% on the Portsmouth to Brussels route. Wednesday is the cheapest departure day at £230 return on average, while Sunday is the most expensive at £320, a difference of £90. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Brussels?

    Some of the most popular sights in Brussels are Brussels Central Railway Station, Grand Place, and Brussels South Station. These are among the most viewed places in Brussels on KAYAK.

  • How long is a flight from Portsmouth to Brussels?

    There are currently no direct flights available from Portsmouth to Brussels. Flights with 1 stopover take between 3h 40m and 5h 51m in total, depending on the connection.

  • Do I need a passport to fly from Portsmouth to Brussels?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Portsmouth to Brussels changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £132 to £727. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Portsmouth to Brussels looking right now?

    One-way fares from Portsmouth to Brussels are currently lower than usual. Average one-way flight prices are about £89, which is 64% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Portsmouth to Brussels?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time of 3h 40m, compared to 5h 51m via London Heathrow (LHR).

  • What is the time difference between Portsmouth and Brussels?

    Brussels is 1 hour ahead of Portsmouth (Central European Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car hire options are available in Brussels?

    Since Brussels is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
    Near Brussels Bruxelles-National Airport (BRU) – daily rates from around £15:

    • Hertz
    • Alamo
    • keddy by Europcar
    • Europcar
    • Sixt

    Near Charleroi Brussels Airport (CRL) – daily rates from around £16:

    • keddy by Europcar
    • Europcar
    • Hertz
    • Sixt
    • Thrifty

  • How much should I expect to pay for a Portsmouth to Brussels flight?

    Return flights from Portsmouth to Brussels range from £230 to £305, with an average of £254 over the past 12 months. Anything below £230 counts as a good deal.

Your guide to booking Portsmouth to Brussels flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average £230 – about £90 less than Sunday (28% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Portsmouth to Brussels trip for May. Fares historically average £215 return in that month – typically £155 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Brussels Bruxelles-National Airport.
    - NH Brussels Airport
    - Crowne Plaza Brussels Airport By IHG

More options for your flight from Portsmouth to Brussels

Complete your trip to Brussels with a hotel stay or car hire

Car hire in Brussels
Hotels in Brussels
Holidays in Brussels