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To book cheap flights to Belgium from the UK starting from £19, Seven Zones Travel compares leading budget and network carriers like Ryanair, British Airways, Brussels Airlines, and easyJet across major UK hubs. Tracking direct and connecting routes to Brussels Airport (BRU) and Charleroi (CRL), booking 3 to 6 weeks early delivers the lowest airfares.
iDiscover the best prices by selecting your travel dates.

British Airways
BA 0394
→ Outbound · 2 Nov
LHR
London Heathrow
BRU
Belgium
6:10 PM
2 Nov
1h 15m
Direct
8:25 PM
2 Nov
← Return · 12 Nov
BRU
Brussels
LHR
London Heathrow
9:15 PM
12 Nov
1h 10m
Direct
9:25 PM
12 Nov
from
£114
Return · per adult

British Airways
BA 0388
→ Outbound · 25 Jan
LHR
London Heathrow
BRU
Belgium
8:40 AM
25 Jan
1h 15m
Direct
10:55 AM
25 Jan
← Return · 4 Feb
BRU
Brussels
LHR
London Heathrow
2:15 PM
4 Feb
1h 20m
Direct
2:35 PM
4 Feb
from
£122
Return · per adult

British Airways
BA 0394
→ Outbound · 8 Mar
LHR
London Heathrow
BRU
Belgium
6:10 PM
8 Mar
1h 15m
Direct
8:25 PM
8 Mar
← Return · 18 Mar
BRU
Brussels
LHR
London Heathrow
9:15 PM
18 Mar
1h 10m
Direct
9:25 PM
18 Mar
from
£124
Return · per adult

Brussels Airlines
SN 2096
→ Outbound · 14 Dec
LHR
London Heathrow
BRU
Belgium
6:00 PM
14 Dec
1h 10m
Direct
8:10 PM
14 Dec
← Return · 24 Dec
BRU
Brussels
LHR
London Heathrow
9:10 PM
24 Dec
1h 10m
Direct
9:20 PM
24 Dec
from
£200
Return · per adult

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Belgium packs a lot into a compact, easily explored country: medieval cities, world-class art, celebrated beer and some of Europe's best food. It is one of the quickest hops from the UK, with frequent flights and a fast train from the airport into central Brussels. Whether it is a weekend in Bruges, business in the EU capital or the festive markets, cheap flights to Belgium are easy to find if you book with a little planning.
Belgium has a mild, changeable maritime climate, so pack a waterproof in any season. Late spring (April to June) and early autumn (September) offer the best balance of pleasant weather, lighter crowds and sensible fares. July and August are the warmest and busiest months, while December draws visitors to the Christmas markets in Brussels, Bruges and Ghent. January and February are cold and quiet, which is often when airfares dip — see the When to book chart above.
Most UK travellers arrive into Brussels Airport (BRU) at Zaventem, about 12km from the centre, with trains reaching Brussels-Central in under 20 minutes. Brussels South Charleroi Airport (CRL) lies around 50km south and is the main low-cost base, with a shuttle bus to Brussels taking roughly an hour. Antwerp Airport (ANR) handles a few flights from London City and is handy for the Flemish cities.
Brussels Airlines has the widest UK network, with direct flights from London Heathrow, Manchester, Birmingham, Newcastle and Edinburgh. British Airways flies from Heathrow, easyJet serves Brussels from Gatwick, Luton, Bristol and Belfast, and Ryanair links Stansted, Manchester and Edinburgh with Charleroi and Brussels. London to Brussels takes about 1 hour 15 minutes; from Manchester allow around 1 hour 25 minutes. Direct flights are the norm, so connecting itineraries are rarely needed.
UK passport holders do not currently need a visa for stays of up to 90 days in any 180-day period across the Schengen area for tourism or business, but check the latest entry rules — including the EU's Entry/Exit System and the forthcoming ETIAS authorisation — before you travel. Your passport should be valid for at least three months beyond your departure date and less than 10 years old. The currency is the euro and cards are widely accepted. For the best value, book a few weeks to a couple of months ahead and keep an eye on the price charts above.
Your allowance to Belgium depends on the airline and the fare you book. The table below shows typical long-haul allowances so you know roughly what to expect — always confirm the exact limits with your airline before you fly.
| Fare type | Hand baggage | Checked baggage |
|---|---|---|
| Basic / Light economy | 1 small under-seat bag | Usually none — add for a fee |
| Standard economy | 1 cabin bag + 1 personal item | Typically 1 × 23 kg |
| Premium economy | 1–2 cabin bags + personal item | Typically 2 × 23 kg |
| Business / First | 2 cabin bags + personal item | Typically 2 × 32 kg |
Indicative only. Allowances vary by airline, route and fare — always check your airline's baggage policy.