What data really costs in Belgium, and who should buy it

If you hold an EU or EEA SIM, buy nothing

Belgium sits in the middle of the EU roaming zone, so a SIM from any EU or EEA country works here on your domestic allowance at no extra cost. Most visitors arrive from the Netherlands, France, Germany or Luxembourg, and for them this page has one instruction: keep the SIM you have. The only thing worth checking is your operator's roaming fair-use cap, which can be lower than your home allowance.

The rest is for travellers from the UK, the US, Canada, Australia and anywhere else outside that zone, where daily roaming charges make a local plan worth the setup time.

The prices, and which ones we have actually checked

The cheapest entry price we hold is Saily's 1GB for 7 days at $3.99, read off Saily's own site on 18 August 2026. The cheapest verified price is Airalo's 1GB for 3 days at $4, read from Airalo's own site on 13 August 2026 — and if you want a checked price with a full week on it, Nomad's 1GB at $4.50 is it, read from Nomad's site on 17 August 2026.

Belgium's ladder runs all the way to 50GB, and the rate improves the whole way up. A page that stops at 10GB or 20GB will tell you Belgian data costs well over a dollar a gigabyte; it does not.

The lowest rate anywhere in our Belgian data is Airalo's 50GB for 30 days at $32.50 — $0.65 a gigabyte, a quarter of the 3GB plan's rate. An earlier version of this page put Nomad below it at $29, or $0.58 a gigabyte. That figure was wrong: Nomad charges $45 for the same allowance, which is $0.90. If you are here for a month, or working from a laptop, Airalo's big plan is the obvious buy. For a long weekend, 3GB or 5GB is plenty, and at 5GB Airalo is $4 under Nomad.

Holafly sells unlimited only, from $20.50 for five days. Airalo's verified unlimited is cheaper at $15 for five days, and both are hard to justify when 20GB costs $20 for a month.

Belganet is a product name, not a network

Airalo sells its Belgian plans under two names — Belganet and Belganet+ — and neither is a Belgian carrier. This is worth stating plainly because that name has been printed in comparison tables as though it were a network, including on an earlier version of this page.

The two tiers are priced differently at every size: 10GB for 30 days is $13 on Belganet and $19.50 on Belganet+, and 50GB is $32.50 against $42. What the higher tier buys is not spelled out in the data we hold, so read Airalo's product page before paying for it. Our prices are the standard tier.

On networks generally: Airalo, Saily and Nomad do not publish a host carrier for Belgium. An earlier version of this page said Nomad listed Proximus and Orange against some plans; it does not, and the attribution has gone. Holafly lists nothing either. This page used to give it Proximus, Orange and Base, which came from our own data; Holafly publishes no host carrier for any country — we read its prices for 28 of them off esim.holafly.com on 18 August 2026 and not one names an operator.

Buying on arrival, and where signal thins

Brussels Airport has Proximus, Orange and Base counters in the arrivals hall, open 07:00 to 20:00, selling physical SIMs only — no eSIM. A tourist data package there runs about $12. Carrier stores in the city centre cluster around Place de Brouckère and Rue Neuve. A passport is required for registration, so allow a few minutes for the form.

Proximus has the broadest nationwide coverage, including the rural Ardennes; Orange is strong in Brussels, Antwerp and Ghent. Coverage is good almost everywhere, and the exceptions are minor: pockets of the Ardennes forests, some border zones near Luxembourg and Germany, and weaker indoor signal in the coastal dunes around De Panne.

Full plan lists are on the Belgium hub.