Where to buy a SIM card in the United States

The no-ID rule is the whole story

The United States asks for nothing to sell you a prepaid SIM. No passport, no driver's licence, no address, no registration form. Money or a card, and that is the transaction. Almost nowhere else works like this — Japan, India, Brazil and the UAE all want documents, and most of Europe wants a passport scanned before the SIM will activate.

The practical effect is that buying a US SIM is shopping, not admin. There is no counter you have to visit, no staff member who has to check anything, and no reason to do it at an airport just because that is where the official-looking desk is. You can buy one off a shelf like a phone charger.

Retail stores: the default answer

Walmart, Target, CVS, Walgreens and Best Buy all sell prepaid SIM kits, and T-Mobile, AT&T and Verizon all put prepaid products on those shelves. Walmart tends to have the lowest prices on kits.

No staff interaction is required. You pick up the box, pay at the checkout, and activate online or through the carrier's app. If you are staying anywhere near a town of reasonable size, one of these five is within a short drive or a bus ride, and prices are lower than the airport's — as they are almost everywhere in the world.

We do not hold verified retail prices for these kits, so we are not going to put a number against them. What we can say is that the typical US airport price is around $20, and city retail should not be more than that.

Carrier stores: when you have a coverage question

T-Mobile, AT&T and Verizon stores are on main streets and in shopping malls across the country, and prepaid does not need an appointment. You get the full plan selection and a person to talk to.

That last part is the real reason to use one. American coverage varies enormously by carrier once you leave the metros, and a store rep can answer a specific question — what Verizon actually does in rural Wyoming, for instance — in a way that no comparison site, this one included, can. If your trip involves national parks, long interstate drives or small towns, ten minutes in a carrier store is worth more than any amount of reading.

It is also the only route that lets you choose your network deliberately. That matters more than it looks, for the reason below.

Airports: possible, pricier, slower

JFK, LAX, Miami, SFO and O'Hare all have T-Mobile kiosks and InMotion stores selling SIM cards, typically around $20, with queues from 8 minutes at Miami to 15–20 at JFK on a peak evening. It works, and with no ID needed it is quick as airport errands go. It is simply the most expensive and slowest version of a purchase you could make more cheaply in town or skip entirely. We go through each terminal on our US airport SIM page.

Or buy nothing in person at all

An eSIM needs no shop. These prices were read off the providers' own sites.

Saily's US ladder runs $3.99 for 1 GB over seven days, $8.99 for 3 GB, $13.99 for 5 GB, $22.99 for 10 GB and $36.99 for 20 GB, the last four all over 30 days.

Airalo sells two named tiers in the US — Change and Change+ — and the US is one of the few countries where it does. Change+ costs roughly 40% more at every size:

The 50 GB Change plan at $42 is the cheapest data in the US market we have verified — $0.84 per gigabyte, against $1.83 for 20 GB and $2.70 for 5 GB. It costs only $5.50 more than the 20 GB plan. If you are here for more than a week or two, skipping straight to it is the single easiest saving on this page.

What we cannot tell you is which network any of this runs on. Airalo, Saily, Nomad, eSIM Go and eSIMCard all decline to publish a US host network. We hold nothing on which of the national operators you would end up roaming onto, and we will not guess. That is the trade: an eSIM is cheaper and needs no shop, but you do not get to pick the carrier.

What we would do

Buy an eSIM before you fly for anything city-based — it is cheaper than every physical option here and it works on landing. Go to a carrier store instead if your trip depends on coverage in a specific rural area, because that is the only way to choose the network on purpose. Use retail at Walmart or Target if you want a physical SIM without the airport markup, and the airport itself only if you have already landed and want it solved now.

More on the US market at our USA hub.