Airalo in Belgium: two tiers, 30 plans, no named network

Two Belgian products, not one

We hold 30 Airalo plans for Belgium, every one read off Airalo's own site on 13 August 2026. It is the deepest verified ladder of any provider selling here, and the easiest to misread, because Airalo lists two separate Belgian packages side by side: Belganet and Belganet+. At almost every size and duration there are two prices, and the plus version is dearer by roughly half again.

Neither word is a carrier. Belganet is Airalo's own product name for the country, not a Belgian operator, and Airalo does not publish which network either package roams onto — here or in any other country it sells. Any review that prints an operator's name in an Airalo column has guessed it. We also cannot tell you what the extra money on Belganet+ buys. Airalo's listing gives a size, a duration and a price, and nothing else; we are not going to invent a justification for the gap. If it matters to you, ask Airalo before paying it.

The 30-day ladder

Month-long metered plans, both tiers, all verified:

The ladder does not stop at 20 GB, whatever older comparisons say. The 50 GB plan is the cheapest verified gigabyte we hold for Belgium at 65 cents, and it is the plan to buy if two people are sharing a hotspot for a fortnight. Below 10 GB the rate roughly doubles, which is the usual shape: small plans are convenience purchases and priced like them.

Short stays cost less than you'd think

Most visitors to Belgium are there for three or four days, and Airalo's cheap entry plans are built for exactly that — with a catch. The $4 1 GB and the $5.50 3 GB both expire after three days, not seven. A week costs a little more: 3 GB for $6, 5 GB for $7.50, 10 GB for $11. A fortnight barely more again: 5 GB for $8, 10 GB for $12, 20 GB for $18.50.

The steps between durations are so small that buying the longer window is almost always right. Fifty cents separates 5 GB for 15 days from 5 GB for 30. If your dates might slip, pay it.

Unlimited, and when it stops being sensible

The uncapped Belganet plans run $9.50 for 3 days, $15 for 5, $21 for 7, $29 for 10, $42 for 15 and $72 for 30. Airalo undercuts both rival uncapped ladders at every length they share: Nomad's verified plans are $11, $18, $25 and $33 for 3, 5, 7 and 10 days, and Holafly's indicative five-day plan is $19 against Airalo's $15.

At the long end it inverts. A month of unlimited is $72; a month of 20 GB is $20. Unless you are tethering a laptop all day, 20 GB is more data than a fortnight of maps, messaging and the occasional video call will consume.

Where it wins, and where it doesn't

We hold Belgian prices for three rivals. Nomad's rows were read off its own site on 17 August 2026 and Saily's off Saily's on 18 August 2026; only Holafly's remain indicative. Standard Belganet is the cheapest metered plan at 5, 10, 20 and 50 GB. At 20 GB it is level with Nomad, both at $20. This page used to say it lost at the top of the ladder to a Nomad plan at $29; that price was wrong. Nomad's Belgian 50 GB is $45, against Belganet's $32.50. What Airalo does lose is the headline: Saily's $3.99 buys 1 GB for a week, where Airalo's $4 gives you three days, and Nomad's $4.50 buys the same week.

Belganet+ is beaten by Nomad at 10 GB ($16 against $19.50) and 20 GB ($20 against $28.50), level with it at 5 GB, and ahead of it only at 50 GB. Unless you learn something concrete about what the plus tier adds, there is no case in our data for choosing it over plain Belganet, which is cheaper than both at every size.

Should you buy an eSIM here at all?

If your everyday SIM is from an EU or EEA country, roam-like-at-home covers Belgium and you should buy nothing. Everyone else is choosing between an eSIM and a Belgian prepaid SIM, which runs about $12 at the airport. Belgium requires passport or ID registration for a local SIM, so that is a staffed counter and a form, not a grab off a rack — the main practical reason to arrive with an eSIM already installed. The full side-by-side is on our Belgium hub.

One caveat applies to every provider equally. Belgian coverage thins in the Ardennes forests, in the border zones near Luxembourg and Germany, and indoors around the coastal dunes at De Panne. We cannot tell you how Airalo fares there, because we do not know whose radio network it is using.