Una aplicación, control total.
Gestiona tus planes, tus datos y tu eSIM desde tu teléfono, estés donde estés.
¿Qué viajeros? ¿Cuáles son las preguntas que más nos hacen?
Yes. The LATAM plan covers El Salvador and 14 other countries, including Guatemala and Honduras, and your phone switches networks by itself at the border. Details in does a region plan cover every country in it?
In El Salvador your plan connects to Claro or Tigo on 4G LTE, which handles maps, messaging, video calls, and streaming; 5G is not part of this plan. Your phone joins the network automatically once the plan is switched on. If it hasn't connected a minute after landing, work through the no-signal checklist.
Yes, on 4G in both towns and along the coast road. The breaks and the empty beaches further east are the thin spots. Hotspot is allowed on every plan for the days the guesthouse Wi-Fi drops.
At the trailhead and the lower slopes, yes; on the crater rim, not reliably, on any network. Download the route and go with the guided group.
It depends on how much data you want and how many days you're staying. A fixed plan costs less overall; an unlimited plan (5 GB a day at full speed, then slower) works out to a lower daily rate the longer you stay. Every current option and price is in the plan selector at the top of this page.
In the app: open My plans, choose your El Salvador plan, and tap Top up. The extra data lands on the same eSIM within a few seconds, with nothing new to add or scan. Full steps are in topping up data without reinstalling the eSIM.
Weeks ahead. The plan's days don't start until you turn it on and connect, so a plan bought a month before departure is still complete when you land. Plans need to be activated within 90 days of purchase. See what plan validity means and when it starts.
If it's eSIM-compatible and carrier-unlocked, yes, which covers most phones sold since 2019. The one-minute check for iPhone, Android, and Samsung is in is my phone eSIM compatible?
El Salvador eSIM for the surf coast, the coffee road, and the volcanoes
Set it up before you fly. It's live the moment you land, nothing to check, nothing to remember.
Already with us? Get the app on the App Store or Google Play.
El Salvador is small enough to cross in three hours and built around a surf coast, a coffee road, and a ring of volcanoes, and the phone is how you get between them. The best eSIM for El Salvador is the one that's working when you walk out of the airport at Comalapa, so the transfer to El Tunco and the first surf-school booking are done on the way to the car.
Below: how an El Salvador plan works, how to set it up before you fly, what to expect on the coast, in the highlands, and in the capital, and which plan fits when Guatemala or Honduras is on the same trip.
A Central American trip rarely stays in one country; the buses and the border posts are part of it. KnowRoaming is built for that. You add the KnowRoaming eSIM, called KR.One, to your phone once, then add a plan per trip: El Salvador now, a LATAM plan the year the route runs down the isthmus, anywhere else after that. The eSIM stays; only the plan changes, and nothing needs deleting when you get home.
The plan's days start when you turn it on and connect in El Salvador, not at checkout. Buy it weeks ahead, add it at home, and a delayed flight costs you nothing. The full rule is in what plan validity means and when it starts.
Choose a fixed plan for a set amount of data at the lowest overall price, or an unlimited plan when you'd rather not count. Unlimited plans give you 5 GB a day at full speed, then a slower speed until the allowance resets the next day. If a fixed plan runs low, top up in the app and the extra data lands on the same eSIM.
See it in two minutes: Meet KR.One, iPhone setup with KR.One, or Samsung setup with KR.One.
Do this at home on Wi-Fi. It takes about a minute.
Before you leave
- Get the KnowRoaming app (available on iOS and Android) and choose your El Salvador plan.
- Tap Add. First time on this phone? The app adds KR.One and your El Salvador plan together. Already have KR.One? Only the plan is added, with nothing to scan.
- Leave data roaming off on the KnowRoaming line until you land, and turn it off on your home line too so it doesn't run up charges in the background. Steps are in turning off roaming on your home line.
When you land
- Turn the plan on in the app, then turn data roaming on for the KnowRoaming line. That setting lives in your phone, so the app can't flip it for you.
- Give the phone a minute to find the network. If nothing happens, turn airplane mode on for 30 seconds and off again.
Prefer a QR code? The checkout page and your confirmation email both carry one; scan it from your phone's settings. Every tap, by device, is in adding your eSIM on iPhone, adding your eSIM on Android, and adding your eSIM on Samsung, or watch the iPhone QR walkthrough or the Samsung QR walkthrough. Still no signal after landing? Work through the no-signal checklist.
San Salvador's airport is about 45 minutes from the capital and about the same from the surf towns on the coast; pre-booked shuttles and Uber, which works with the number you already have, are the ways in. El Salvador uses the US dollar, cards work in the capital and the tourist towns, and cash covers the buses, the pupuserías, and the villages.
The chicken buses link everything cheaply, the shuttle vans link the tourist towns comfortably, and both are arranged by phone the day before.
La Libertad's coast, with El Tunco, El Sunzal, and El Zonte, is the reason most people come: right-hand point breaks, surf schools that book by message, and a scene that runs from dawn sessions to beach bars. Claro and Tigo cover the towns on 4G; the breaks themselves are for the water, and the empty beaches east toward El Cuco thin out.
The Ruta de las Flores runs through Juayúa, Apaneca, and Ataco in the coffee highlands, with weekend food festivals and waterfall hikes; Santa Ana's volcano is the day hike, with a guided ascent to the turquoise crater lake, and Lake Coatepeque the swim afterward. Suchitoto, the colonial town above a lake, is the other highland stop. The towns have 4G; the trails and the crater rim drop out on every network.
Joya de Cerén, the Maya village buried by ash and now a UNESCO site, and the ruins at Tazumal are the archaeology, a morning each from Santa Ana; San Salvador's own center, the cathedral, and the Rosario church are a half day, with Uber the way between them.
El Salvador is on the LATAM plan, 15 countries on one plan that also covers Guatemala and Honduras, switching networks by itself at the crossings; the route from Antigua Guatemala through El Salvador to Copán in Honduras is covered end to end. An El Salvador-only plan stops at the border. Read do I need a new plan for every country? for the detail.
The Ruta Maya add-on, from Copán's ruins in Honduras through Guatemala's Antigua and Lake Atitlán, is the classic Central American loop, and all of it sits on the LATAM plan; the shuttles between the tourist towns cross the borders several times a day and are booked by message.
El Zonte and El Tunco have become bases for people who work from a laptop between sessions, and the towns' 4G handles video calls; guesthouse Wi-Fi varies, which is what the plan's hotspot is for. For a stay of weeks, an unlimited plan, with 5 GB a day at full speed, is the right buy; a fixed plan suits a surf week. Both are on the plan selector at the top of this page.
Your plan connects to Claro or Tigo on 4G LTE. There is no 5G on this plan. Coverage is strong in San Salvador, Santa Ana, the surf towns, and along the main roads. Your phone picks the network automatically once the plan is on; there is nothing to choose by hand.
On the volcano trails, the crater rims, and the far eastern beaches, expect gaps on any network. Save what you need in town.
Most phones sold since 2019 support eSIM, including iPhone XS and later and most Android flagships from the same window. Check yours before you add a plan; it takes a few seconds. On iPhone, go to Settings, General, About and look for an EID or Available SIM. On Android, go to Settings, Network & Internet, SIMs and look for an option to add an eSIM. On Samsung, dial *#06# and look for an EID.
Your phone also needs to be carrier-unlocked. If you're not sure, carrier-locked vs unlocked: how to tell shows you where to look.
Adding an El Salvador plan doesn't touch your regular SIM. Calls and texts on your usual number keep working exactly as before. The new plan handles data while you're there, and most phones run both at once without you doing anything else. Bank codes and two-factor texts still arrive on your home number, as long as that line stays switched on.
In Central America the alternatives are your home carrier's roaming rate, often unavailable outside the capital; a local SIM at each border with a new number each time; or hostel Wi-Fi that is fine until you're on a bus. An El Salvador plan added at home beats all three: one price agreed before you fly, live the second you land, and a LATAM plan if the route crosses borders.
Real travelers rate KnowRoaming 4.5 out of 5 on Reviews.io. More than a decade in travel connectivity, more than 200 destinations, and support that doesn't clock off: WhatsApp and live chat, any time, any day.
One plan. No roaming surprises. Live the moment you land.
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4.5 out of 5 on Reviews.io. 200+ destinations. Support that doesn't clock off.
Destinos de ensueño, datos en tiempo real.
Very easy to set up.
Iviwe
Cape Town, ZA
i had no issues. however i am moving to a provider that provides 365 packages at reasonable rates. u dont do that currently. also because im buyinhg on mtn which is using u u are getting my support bec its easier. u have to offer better packages. also i was charged 20% more than the advertized rate, i am currently in dispute with mtn.
Siki
Great service
Edmond N