Peru eSIM Guide 2026: Machu Picchu, Cusco and Altitude-Proof Connectivity
Inca Trail permits, Cusco acclimatisation and Lima's sprawl — how much data you need in Peru and where mountain coverage disappears.
Peru is a logistics puzzle wrapped in a spectacular trip: timed Machu Picchu entries, train tickets from Ollantaytambo, altitude to manage in Cusco. A travel eSIM gets you online the moment you land in Lima or Cusco.
Short answer: 5–8 GB covers a week in Peru. Coverage is good in Lima, Cusco, Arequipa and the Sacred Valley towns; the Inca Trail, high passes and Amazon lodges have none.
Why an eSIM here
- Land online — book a registered taxi from Lima airport rather than the informal ones outside.
- No local SIM registration or shop hunt at altitude.
- Keep your home number for bank codes.
- Manage timed entries — Machu Picchu tickets and train times are all online now.
Coverage in Peru
A travel eSIM rides Claro, Movistar or Entel. Expect solid 4G in Lima, Cusco, Arequipa, Puno and the Sacred Valley (Pisac, Ollantaytambo, Aguas Calientes). The Inca Trail itself is offline; Salkantay and high Andean passes likewise. Amazon lodges near Puerto Maldonado are largely offline by design.
How much data do you need?
- Light (maps, tickets, messaging): ~4 GB per week.
- Typical (photos, social, translation): ~8 GB.
- Heavy (hotspot, uploads): 15 GB+.
Set up before you fly
- Buy a Peru eSIM sized to your trip.
- Install it at home on Wi-Fi — see the install guide.
- Land, enable the eSIM and turn on Data Roaming for that line.
Altitude and trek tips
- Download Machu Picchu tickets and train QR codes offline — Aguas Calientes signal is unreliable at peak times.
- Cache offline maps for the Sacred Valley and any trek approach.
- Cold and altitude drain batteries fast — power bank essential on the trail.
- Inca Trail is four days offline. Tell people in advance.
The bottom line
Peru runs on bookings and timings, and your phone holds all of them. Install a Peru eSIM before you fly, download your tickets offline, and let the trail be the one place you disconnect.
Ticket tip: screenshot every QR (train, entry, bus). Aguas Calientes at 6am is not where you want to discover a dead zone.