San Antonio eSIM

Buy a San Antonio eSIM for your US trip

Arriving in San Antonio for historic sights or a Texas city break? Choose an AloOui United States eSIM for maps, bookings and messages where supported mobile coverage is available. Your QR code is emailed after purchase. This guide links to the existing United States eSIM plans, not a separate San Antonio-only product.

Choose data before arriving in San Antonio.

Compare total and daily allowances and select validity for the entire US trip. Check the live price and exact selected terms before checkout.

Choose my US eSIM

Compare United States eSIM plans for San Antonio

Fixed data

A total allowance for the selected validity, not a daily reset. The US selector has a 1GB/7-day option and larger fixed choices.

Unlimited Lite

Shown as United States of America Unlimited in the selector. Compare daily full-speed allowance and reduced-speed terms.

Unlimited Essential

A balanced daily tier for maps, messages and bookings. Check exact full-speed and continued-data terms.

Unlimited Plus

Compare this daily tier for heavier use. Check allowance, validity and hotspot terms. Plus is not Premium.

No Premium tier is selectable on this US product. Compare live data, speed and hotspot terms on the United States product page. Fixed data has a total allowance; the Unlimited tiers have daily full-speed terms.

Arriving in San Antonio

Save the airport named on your ticket, hotel address and transfer instructions while on Wi-Fi. After following your selected plan's activation guidance, supported data can help with directions and contacting your host. Check current pickup points, fares and schedules with transport providers. An eSIM does not include an airport transfer or guarantee signal everywhere in a terminal.

Historic sights and Texas city days

Use supported data for directions to your accommodation, the River Walk area and prebooked historic visits. Save entry confirmations and meeting points offline; check opening hours and admission rules with each venue. Indoor reception and crowded locations can affect speed. If your itinerary continues elsewhere in Texas, choose validity for the whole route and download important tickets and maps.

Need a US phone number too?

The data eSIM and the United States Virtual Phone Number are separate products. The virtual number is a monthly subscription that renews automatically. Check calling, messaging, activation and acceptable-use terms before purchasing; do not assume a number comes with the data eSIM.

Explore US virtual number

Install and troubleshoot

Choose a United States data plan, complete checkout and open the emailed QR code on another screen.
Connect an unlocked, eSIM-compatible phone to stable Wi-Fi. On iPhone, open Settings > Cellular/Mobile Data > Add eSIM > Use QR Code. On Android, find Add eSIM in SIM manager or Network & internet; labels vary.
Scan the code, label the line AloOui and follow the delivery email. Do not delete the installed eSIM.
On arrival, select AloOui for mobile data and follow the selected plan's activation instructions. If data fails, check validity, mobile data and instructed roaming, toggle airplane mode, verify any APN instructions in your email and try automatic network selection. Visit the AloOui Help Center for assistance.