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Cheap flights from Portsmouth to Belgium from £146

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
19 Jun — 26 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Belgium

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Belgium
Explore the most affordable flight options available from Portsmouth to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 May 2026.

Thu 4/617:20
SOU
-
BRU
1 stop15h 00m
Multiple Airlines
Wed 10/619:00
BRU
-
SOU
1 stop14h 35m
Multiple Airlines
Deal found 18/5£146
Wed 17/618:25
SOU
-
CRL
1 stop12h 45m
Multiple Airlines
Wed 24/617:20
CRL
-
SOU
1 stop16h 15m
Multiple Airlines
Deal found 20/5£152
Wed 10/620:00
SOU
-
BRU
1 stop12h 35m
Multiple Airlines
Fri 12/619:35
BRU
-
SOU
1 stop14h 05m
Multiple Airlines
Deal found 18/5£163
Wed 10/620:00
SOU
-
CRL
2 stops16h 55m
Multiple Airlines
Fri 12/619:30
CRL
-
SOU
2 stops14h 10m
Multiple Airlines
Deal found 18/5£163
Mon 15/620:40
SOU
-
CRL
1 stop14h 35m
Multiple Airlines
Mon 22/621:40
CRL
-
SOU
1 stop12h 00m
Multiple Airlines
Deal found 18/5£168
Fri 5/620:00
SOU
-
CRL
2 stops18h 30m
Multiple Airlines
Sun 7/621:40
CRL
-
SOU
2 stops22h 50m
Multiple Airlines
Deal found 18/5£172
Mon 22/620:40
SOU
-
CRL
1 stop14h 35m
Multiple Airlines
Fri 26/619:30
CRL
-
SOU
2 stops22h 20m
Multiple Airlines
Deal found 18/5£179
Thu 2/715:25
SOU
-
BRU
1 stop16h 50m
Multiple Airlines
Wed 8/719:00
BRU
-
SOU
1 stop14h 35m
Multiple Airlines
Deal found 20/5£188
Mon 22/620:40
SOU
-
BRU
1 stop11h 45m
Multiple Airlines
Fri 26/617:45
BRU
-
SOU
2 stops25h 25m
Multiple Airlines
Deal found 18/5£189
Fri 5/620:00
SOU
-
BRU
1 stop12h 10m
Multiple Airlines
Sun 7/618:55
BRU
-
SOU
2 stops25h 35m
Multiple Airlines
Deal found 18/5£192
Fri 5/620:00
SOU
-
BRU
1 stop12h 10m
Multiple Airlines
Mon 8/609:35
BRU
-
SOU
1 stop10h 55m
Multiple Airlines
Deal found 19/5£194
Wed 17/615:35
SOU
-
CRL
2 stops18h 10m
Multiple Airlines
Sun 21/608:35
CRL
-
SOU
2 stops25h 05m
Multiple Airlines
Deal found 18/5£207

Find flight deals from Portsmouth to Belgium

Keep the following information in mind while searching for Portsmouth to Belgium flight deals. Data was last updated 20 May 2026.

Round-trip from

£146

Popular in

July

Cheapest in

November

Average price

£142
4/6-10/6
  • 4/6-10/6
  • 2 total stops
  • 29h 35m total
  • Portsmouth to Belgium
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. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Belgium 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 20 May 2026.
Use the filters below to find and compare flights from Portsmouth to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Wed 17/6

18:25-08:10

1 stop12h 45m

Charleroi Brussels

Wed 24/6

17:20-08:35

1 stop16h 15m

£152

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Thu 2/7

15:25-09:15

1 stop16h 50m

Brussels Bruxelles-National

Wed 8/7

19:00-08:35

1 stop14h 35m

£188

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Wed 10/6

18:25-08:10

1 stop12h 45m

Charleroi Brussels

Fri 12/6

16:00-08:40

2 stops17h 40m

£190

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Wed 17/6

15:35-10:45

2 stops18h 10m

Charleroi Brussels

Sun 21/6

08:35-08:40

2 stops25h 05m

£207

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Wed 17/6

18:25-22:55

1 stop3h 30m

Charleroi Brussels

Thu 25/6

21:05-19:40

1 stop23h 35m

£214

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Mon 15/6

19:20-14:30

1 stop18h 10m

Brussels Bruxelles-National

Mon 22/6

16:55-08:25

2 stops16h 30m

£263

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Sun 7/6

14:45-21:40

1 stop5h 55m

Charleroi Brussels

Tue 9/6

19:45-12:55

1 stop18h 10m

£273

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Sat 30/5

06:45-11:25

1 stop3h 40m

Charleroi Brussels

Sun 31/5

09:15-08:25

2 stops24h 10m

£275
Fastest return journey

SouthamptonBrussels

SOU - CRL

SOUCRL

Southampton Eastleigh

Sat 30/5

06:45-11:25

1 stop3h 40m

Charleroi Brussels

Sat 30/5

19:40-07:55

2 stops13h 15m

£287

SouthamptonBrussels

SOU - BRU

SOUBRU

Southampton Eastleigh

Tue 8/9

20:00-09:40

1 stop12h 40m

Brussels Bruxelles-National

Fri 11/9

21:25-08:40

1 stop12h 15m

£313

Flights are sorted by cheapest return flights first.

Deals found on 18/5

Showing 1-10 of 29 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Portsmouth to Belgium

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

What is the cheapest time of day to fly from P0R to BE?

Find hourly flight availability from Portsmouth to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 May 2026.

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Belgium in the evening. If you’re flexible enough to do this you can expect to save up to 68% on your trip compared to booking a flight in the morning.

Weekly flight availability from Portsmouth to Belgium

Explore weekly flight availability from Portsmouth to Belgium. 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 20 May 2026.

The most flights from P0R to BE0 are scheduled on a Wednesday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated 20 May 2026.
Read through reviews of airlines operating flights from Portsmouth to Belgium, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,516 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

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
1,516 reviews
KLM
7.8
Good
1,516 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.2

Boarding

7.8

Food

7.3

Comfort

7.7

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 Belgium. 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 Belgium?

    A quick flight from Portsmouth to Belgium can take about 12h 40m. Aer Lingus provides one of the quickest options available for as low as £313. The distance from Portsmouth to Belgium is about 254 mi.

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

    Consider American Airlines (91%), LATAM Airlines (91%) or Qatar Airways (89%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Belgium.

  • What are the cheapest flights from Portsmouth to Belgium?

    Looking at all options, your cheapest flight can be booked for £68. While the most popular route (Southampton Eastleigh - Brussels Bruxelles-National) can be booked for £194 on average, our data indicates £683 when flying from Portsmouth to Belgium.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Belgium 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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Top 3 airlines flying from Portsmouth to Belgium

Discover the top 3 airlines that operate flights from Portsmouth to Belgium. 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 20 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£88Average£112FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£95Average£137FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£133Average£213FlexibilityNo 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 Belgium?

Cheapflights helps you search for flights from Portsmouth to Belgium 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 Belgium?

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Belgium, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Portsmouth to Belgium on Cheapflights with our Price Alert feature and get notified when better prices are available.

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