The Balearics turn a Spanish summer into island time: the hidden calas of Mallorca, the sunset bars of Ibiza, the slow quiet of Menorca and Formentera a short ferry away. It's a trip of coves, boat trips and beach clubs — light on data but heavy on the apps that find them. Whether you need to buy a plan for it comes down to where you're travelling from.
EU traveller? You might already be covered
Spain is in the EU. On an EU or EEA plan, "roam like at home" means your data works across the islands at your normal rates — nothing to set up.
You'll want a travel eSIM if any of these apply:
- You're coming from outside the EU — the UK, Switzerland, the US, further afield.
- Your home plan's roaming cap won't survive a week of maps and beach photos.
- You'd rather keep a clean, separate data line and not touch your main plan.
If that's you, set up a Spain eSIM on home Wi-Fi before you fly and switch it on when you land at Palma, Ibiza or Mahón.
What you'll actually use data for
- Maps and car/scooter hire to reach the calas down unmarked tracks.
- Ferry times between Ibiza and Formentera, or across to the smaller islands.
- Beach-club and boat-trip bookings, plus the sunset spots that sell out.
- Translation, restaurants and video calls from the cove of the day.
Two to three gigabytes covers a long weekend; four to six is safer for a week of heavy navigation and photos.
Tip: The best calas sit at the end of patchy mountain roads where signal drops. Cache offline maps and screenshot your ferry and boat bookings while you're still on hotel Wi-Fi, so a dead spot never strands you.
If the islands are one stop on a bigger Spanish trip
Lots of trips pair the Balearics with the mainland — a few city days before the beach. For the classic city break, see A long weekend in Barcelona: staying online in Spain. If your summer strings several countries together — Spain plus Portugal, France or Italy — a multi-country plan beats a stack of single-country ones; when that's the better call is in One eSIM for a multi-country Europe trip, and whether EU roaming already has you covered is in Roam like at home: when EU roaming is enough (and when it isn't).
Off to the islands? Grab a Spain eSIM before you go and spend the ferries watching the water, not the loading spinner.