Cheapest eSIM for Bulgaria (August 2026): 8 Providers Compared

Plan size calculator

Enter your trip length and how you use your phone, and we’ll point you to the smallest eSIM4 plan that won’t run out, so you pay the least. Short trips typically need 1 to 3GB, a week needs 5 to 10GB, and heavy use calls for the 20GB plan.

This is a rough guide for typical use with offline maps and some free wifi along the way. Heavy streamers and anyone tethering a laptop should size up to the 20GB plan.

What is a Bulgaria eSIM?

Some providers market it as an eSIM Bulgaria plan, but it works the same way everywhere: a prepaid mobile phone plan for data only, no contract attached.

Sofia Airport’s arrival signage is in Cyrillic, so most visitors want a working map and currency converter before they clear baggage claim, especially now that Bulgaria prices in euros. A Bulgaria eSIM is a digital SIM profile that adds mobile data to your phone, no physical card involved.

Pay online, scan a QR code by email, and it connects automatically once you land in Bulgaria. Your physical SIM stays in the phone throughout, handling calls and texts on your usual number, while the eSIM covers data only, for maps, translation apps and messaging.

Think of it as a SIM card built into your phone’s software instead of a physical SIM card you slot in and out. It gives your smartphone internet access the same way a local SIM would, and most mobile phones sold since around 2018 support it, though it doesn’t replace your phone’s ability to make calls or send SMS on your home number, since your physical SIM still functions as your telephone line for that. It’s one of the simplest ways to get internet in Bulgaria without a shop-counter wait.

Which Bulgaria eSIM is right for your trip?

For most Bulgaria trips, eSIM4 is the default pick: $3.98 for 2GB, $5.98 for 5GB, $11.98 for 10GB and $18.98 for 20GB, its largest plan since it doesn’t sell unlimited here. The exceptions sit at the smallest sizes: Saily wins 1GB at $1.99 and Airalo wins 3GB at $4.50.

Short trip or light data

A quick city break in Sofia or Plovdiv usually needs just maps and messaging for a few days. eSIM4’s 2GB plan at $3.98 covers that comfortably, or take Saily’s $1.99 1GB plan if your trip only needs a bare top-up.

A typical week

A week split between Sofia and the coast or the mountains typically lands in the 5 to 10GB range. eSIM4 wins both sizes, at $5.98 for 5GB and $11.98 for 10GB, ahead of every rival we checked.

Heavy data or a longer stay

Two weeks or more, or days spent tethering a laptop around Bansko or Borovets, calls for real data headroom. eSIM4 has no unlimited plan in Bulgaria, so its 20GB plan at $18.98 is the pick, and it still beats every rival’s 20GB price plus most rivals’ short unlimited passes on total cost.

Families and groups

Buy one plan per phone rather than stretching a single eSIM across a group. Whoever handles the hotspotting for the group should take the 20GB plan, since eSIM4 plans support tethering.

Strict single-plan budget

If you want the lowest single number on the page, Saily’s $1.99 1GB plan is the cheapest, with Airalo’s $4.50 3GB close behind. eSIM4 is the better value everywhere else on this page.

You can set up your eSIM in minutes wherever you land, and staying connected in Bulgaria from the moment you touch down beats hunting for a SIM shop at the airport. Whether you’re comparing esim packages, esim deals or esim data plans for bulgaria, matching the tier to your actual trip beats chasing the single lowest number on the page.

Planning stops that go beyond Bulgaria? Our best eSIM for Bulgaria guide ranks every provider on coverage and support as well as price.

How much data do you need in Bulgaria?

Rough bands to start from: light use runs 1 to 3GB, a typical week runs 5 to 10GB, and heavy use or a longer stay calls for the 20GB plan, since eSIM4 doesn’t sell unlimited in Bulgaria.

Providers structure their data packages differently: some sell flexible plans you top up as you go, others sell only a fixed esim plan per trip you prepay for upfront. Matching your gb of data to your travel needs is what actually keeps costs down, and prepaid data plans in general reward buying the size you’ll use over guessing high. A bare 1 GB top-up suits an emergency more than a full week of maps and messaging, though it’s enough to stay connected for a day or two while you sort out something bigger.

Bulgaria leans on data more than you might expect, since street and metro signage is in Cyrillic and most visitors keep a live maps app running almost constantly.

Light use: 1GB to 3GB

Enough for maps, messaging and light browsing over a long weekend, such as a short Plovdiv city break or a couple of days in Sofia.

A typical week: 5GB to 10GB

Covers daily navigation, social apps, the odd video call and some streaming. This is the most common choice for a one-week Bulgaria trip that mixes a city stop with the coast or the mountains.

Heavy use or long stays: the 20GB plan

Two weeks or more, or days spent hiking Rila and Pirin or skiing Bansko and Borovets where you might lean on tethering to keep a second device online, calls for real headroom. eSIM4’s 20GB plan at $18.98 is the largest it sells in Bulgaria and the best-value pick for that kind of use.

A few rivals sell unlimited plans instead, but their unlimited data plans run short validity windows at a much higher price than eSIM4’s fixed 20GB option, so most travelers come out ahead sticking with fixed data here.

Bulgaria’s mobile networks and coverage

Bulgaria runs on three networks: Vivacom, A1 Bulgaria and Yettel Bulgaria. A1 is the market leader by subscribers and posts the fastest download and 5G speeds.

Vivacom holds the widest overall coverage and leads on 5G reach, especially outside the main cities. Yettel is the most consistent option in cities but carries the smallest 4G and 5G footprint of the three. That mix means reliable internet and solid coverage in Bulgaria almost everywhere, whether you’re in for a quick weekend or working remotely as a digital nomad who needs steady connectivity.

All three cover Sofia, Plovdiv, Varna and Burgas with 5G, and Vivacom and A1 reach furthest into rural areas. eSIM4 connects to a major Bulgarian network with 4G LTE and 5G, so you get the same coverage the pricier providers rely on.

Why some cheap eSIMs feel slow in the mountains

Some budget eSIMs route your data out through a server in another country to cut costs, which can cause lag and apps that refuse to load because they think you’re still in that other country. That effect gets worse the moment you’re away from the cities.

The Rila, Pirin and Balkan mountain ranges, along with ski resorts like Bansko and Borovets, have genuine coverage gaps where even the strongest local networks struggle.

Checking that your eSIM gives a real local Bulgarian connection matters most exactly there. eSIM4 connects to a major Bulgarian network so your data stays local, with 4G LTE and 5G where it’s available.

eSIM vs airport SIM, pocket wifi and local SIM

Bulgaria’s euro switch changes the math on the alternatives to a travel eSIM more than in most countries, since the cash-based options now cost you a currency stop too.

• A Vivacom, A1 or Yettel counter at Sofia Airport. Sticker prices land close to a travel eSIM, but you’re standing in a queue after a long flight, breaking euro notes on the spot, and pulling your own SIM out of the tray until you swap it back at the end of the trip.
• A pocket wifi router. One box can cover a group splitting a trip to Sunny Beach or the slopes at Bansko, though someone has to keep it charged through the day and hand it back at a rental counter before the flight home.
• A local Bulgarian eSIM or SIM bought on arrival. A few carriers bundle in a Bulgarian number, useful if a Plovdiv guesthouse or a mountain lodge near Rila only takes bookings by phone, but the data itself runs pricier than a plan sized for a week or two in the country.

None of the three beats installing a Bulgaria eSIM before you leave home: it’s live the second you land at SOF, needs no euro cash upfront, and your usual number stays reachable the whole trip. Skip the queue for a local SIM card in Bulgaria and the roaming charges that come with leaving your home SIM switched on, and you’re online with a proper eSIM service before the plane even lands. None of this affects how you make phone calls or text on your regular number, and apps like WhatsApp work over the eSIM’s data just as they would over wifi. If you’d rather buy an eSIM for data only and keep everything else as is, that’s exactly what a travel eSIM does, ready to use in Bulgaria the moment you land. Want a Bulgarian number anyway? eSIM4’s Yabb app add-on adds one alongside your data, no second SIM needed.

Will your phone work with an eSIM in Bulgaria?

You need a phone that’s both eSIM-compatible and carrier-unlocked. Most models from the past several years qualify, including iPhone XS and later, Google Pixel 3 and later, and Samsung Galaxy S20 and later. Dial *#06# to check for an EID, or look in Settings for an “Add eSIM” option. eSIM technology has been standard on flagship smartphones since around 2018, so most phones bought since then support it even though the physical SIM card slot is still there for backup. Checking whether your phone is compatible with eSIM takes seconds using that *#06# trick.

A phone still tied to a carrier contract needs unlocking before you fly, since a locked handset won’t accept a new eSIM profile. Your regular SIM keeps its spot in the phone throughout the trip, running your normal number for calls and texts while the eSIM covers data in Bulgaria.

How to set up your Bulgaria eSIM

Install it before you fly and switch it on once you land at Sofia, Burgas or Varna. The whole process takes a few minutes: purchase your eSIM online, install the eSIM profile, then turn on your eSIM once you land to activate an eSIM card and start using your data. If you’d rather install your eSIM the night before instead of at the gate, that works too, it just sits inactive until you turn it on.

1. Buy your plan and you’ll get a QR code by email.
2. On your phone, open Settings, then Cellular or Mobile Data, then Add eSIM.
3. Scan the QR code and follow the prompts to finish installing.
4. After landing in Bulgaria, set the eSIM as your data line and turn on data roaming for it.

If your Bulgaria eSIM will not connect

Most connection issues clear up within a minute or two. Using an eSIM across Bulgaria’s mountain regions can occasionally need a manual network nudge, since coverage runs thinner near Rila and Pirin than it does in Sofia or along the coast. Work through these steps in order.

1. Wait until you’re off the plane and in the arrivals hall, since signal can be patchy while still boarding.
2. Toggle airplane mode on and back off to force a fresh network search.
3. Check that the eSIM is set as your data line and enable data roaming specifically for that line, not just your primary one.
4. If it hasn’t picked one automatically, manually select Vivacom or A1 in your network settings.
5. Switch from 5G to 4G LTE in busy areas where 5G can get congested.
6. On some Android phones, you may need to enter an APN manually if data still won’t flow.

If you’re traveling with a single phone, save your QR code as a photo before you leave home. On iPhone, long-press the code to add it; on Android, scan it straight from your gallery with Google Lens.

How we compared

We took each provider’s cheapest plan at every data size and duration available for Bulgaria and benchmarked it against the market, comparing 8 providers in total. Prices are in USD, collected this month, and verified against each provider’s own Bulgaria pages.

eSIMply is excluded because it mirrors eSIM4’s pricing and isn’t an independent competitor. Free-trial tiers were excluded from every comparison, and prices are re-checked on a regular monthly cadence.

The goal is to help you find the best deal among Bulgaria’s eSIM providers, not just the cheapest esim plans on paper, since validity length and network quality matter just as much as price when you’re picking one of the best esims for a trip. Every provider here offers genuine data services in Bulgaria rather than reselling someone else’s network under a new name.

Related guides

• Best eSIM for Bulgaria: full rankings on coverage, app quality and support, not just price, plus wider Bulgaria travel tips beyond just the data plan.

About the author

Peter Moore, eSIM Content Writer

Peter has spent years covering telecoms and travel technology, testing eSIM providers across dozens of destinations. He writes guides built on real pricing and coverage data rather than marketing claims, so travelers can make an informed choice before they fly.