The short answer
An El Salvador eSIM from Flysimio runs on Claro, covering San Salvador, Santa Ana, the Ruta de las Flores and the surf towns of El Tunco and El Zonte. Buy it online, install it before you fly and it connects when you land at San Salvador airport, while your home number stays active.
Flysimio El Salvador eSIM
$4.73 from · instant QR · 7-day refund
Flysimio El Salvador eSIM plans
Most travelers pick the 5 GB / 30-day plan at $30.33 — about $6.07/GB for El Salvador. Full live range (prices update hourly):
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1 GBBuy$4.73 | 7 days | $4.73 | $4.73/GB |
| 3 GBBuy$16.63 | 15 days | $16.63 | $5.54/GB |
| 5 GBMost popularBuy$30.33 | 30 days | $30.33 | $6.07/GB |
Every plan: instant QR delivery, no physical SIM, and a 7-day money-back guarantee.
El Salvador eSIM vs a local SIM card
Claro, Tigo and Movistar sell prepaid SIMs at the airport and in San Salvador. A local SIM is cheaper for long stays; a travel eSIM saves the queue and keeps your home SIM in the phone. Phone settings (data roaming, keeping your number) are covered step by step in how to use an eSIM abroad.
Crossing into Guatemala, Honduras or Costa Rica? The 20-country tier of the South America eSIM includes El Salvador and the rest of Central America.
Frequently asked questions
Does an eSIM work in El Tunco?
Yes. El Tunco, El Zonte and the main surf towns on the coast road have 4G, with gaps on the quieter stretches between them.
Can I use my US phone in El Salvador?
Yes, if it is unlocked and supports eSIM. Install the El Salvador eSIM before you fly for data, and keep your US line on for calls and texts with data roaming off, which avoids a daily carrier roaming fee.
Flysimio El Salvador eSIM
$4.73 from · instant QR · 7-day refund
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.