Bulgaria Travel SIM Comparison: Finding the Best Deal for Data

Most travelers landing at Sofia, Varna, or Burgas airports in 2026 pull out their phones and immediately face the same frustration: their home carrier’s roaming rates are brutal, the airport kiosk has a queue, and nobody is quite sure which Bulgarian network is actually worth buying. European roaming rules have helped EU citizens somewhat, but if you’re arriving from the US, UK, Canada, Australia, or anywhere outside the EU roaming zone, you’re still looking at charges that can quietly drain your budget before you’ve even reached your hotel. The good news is that Bulgaria has one of the most competitive prepaid SIM markets in the Balkans, and getting set up with a proper local data plan takes less than 20 minutes if you know what to do. This guide cuts through the noise and tells you exactly what to buy, where to buy it, and what to expect from each network in 2026.

The Three Networks You Need to Know

Bulgaria’s mobile market is controlled by three operators: A1 Bulgaria, Vivacom, and Yettel Bulgaria. Yettel was previously known as Telenor — it rebranded across its Central and Eastern European markets a few years ago, so if you remember using a Telenor SIM in Bulgaria before 2023, Yettel is the same infrastructure.

All three networks offer solid 4G/LTE coverage across urban areas and along the main road corridors. By 2026, 5G has expanded well beyond Sofia and is now present in Plovdiv, Varna, Burgas, Blagoevgrad, and key tourist areas including Bansko and the Black Sea resort strip. For most travelers, the difference in day-to-day 4G speed between the three operators is negligible — you’re not going to notice whether you’re on A1 or Yettel while loading Google Maps in central Sofia.

Where differences matter is in rural and mountain coverage. If you’re planning to hike in the Rhodopes, drive through the Strandzha Nature Park, or visit monasteries in remote valleys, coverage can get patchy on all three networks — but checking the coverage maps on each operator’s website before you leave for a remote area is genuinely useful. A1’s coverage tends to hold up slightly better in mountain corridors, while Yettel is strong in urban density. Vivacom’s infrastructure has solid reach along major highway routes.

For the vast majority of Bulgaria itineraries — Sofia, Plovdiv, the Rose Valley, the Danube Plain, the Black Sea coast, and Bansko — any of the three will serve you well. The decision comes down to price, data volume, and which store happens to be closest to where you land.

A1 Bulgaria Prepaid Plan: What You Get in 2026

A1 Bulgaria’s tourist-focused prepaid offering in 2026 is called the A1 Connect Tourist 2026. It costs 18 BGN (approximately 9.20 EUR / around 10 USD at current rates) and is available at official A1 stores and at the A1 counters in major airports.

The plan includes:

• 15 GB of 4G/5G data, valid for 30 days
• 500 national minutes for calls within Bulgaria
• 100 international minutes covering the EU, US, and UK
• 30-day validity from activation
• eSIM available at purchase in official A1 stores

If 15 GB runs low, A1 offers straightforward data add-ons: 5 GB for 8 BGN (approx. 4.09 EUR), 10 GB for 12 BGN (approx. 6.14 EUR), or an unlimited data pass for 7 days at 20 BGN (approx. 10.23 EUR). That 7-day unlimited pass is particularly useful if you’re arriving for a week-long beach holiday and want to stream music and video without counting gigabytes.

Top-ups can be done through the My A1 app (available on iOS and Android), through the A1.bg website with an international credit or debit card, at any A1 retail store, or via scratch cards sold in denominations of 5, 10, and 15 BGN at kiosks and supermarkets. To check your remaining balance and data, dial *100# or open the My A1 app.

A1’s official website is www.a1.bg. The site has an English-language option accessible from the top-right corner.

Vivacom Prepaid Plan: What You Get in 2026

Vivacom’s 2026 tourist plan is called the Vivacom Traveler Data 2026 and it’s the most affordable entry point of the three networks at 16 BGN (approximately 8.18 EUR). This makes it attractive for short-stay travelers or those on tighter budgets who still want a proper local SIM.

The plan includes:

• 12 GB of 4G/5G data, valid for 30 days
• 400 national minutes
• 50 international minutes to EU destinations
• 30-day validity from activation
• eSIM available at purchase in official Vivacom stores

Data add-ons for Vivacom are priced as follows: 3 GB for 6 BGN (approx. 3.07 EUR), 8 GB for 10 BGN (approx. 5.11 EUR), or a Weekend Unlimited Data pass for 15 BGN (approx. 7.67 EUR), which runs from Friday at 17:00 through to Sunday at 23:59. That weekend pass is genuinely good value if you’re heading to the Black Sea coast on a long weekend and plan to spend hours on the beach streaming content or video calling home.

Topping up works through the My Vivacom app (iOS and Android), the Vivacom.bg website, retail stores, or scratch cards. To check your balance, dial *123# or check within the app.

Vivacom’s official website is www.vivacom.bg.

One thing to keep in mind with Vivacom: their international minutes allowance (50 minutes EU-only) is the most limited of the three operators. If you need to make a lot of calls to numbers outside Bulgaria, particularly to the US or UK, A1’s plan gives you more flexibility on that front.

Yettel Bulgaria Prepaid Plan: What You Get in 2026

Yettel Bulgaria’s 2026 tourist offering is the Yettel Go Travel 2026, priced at 17 BGN (approximately 8.69 EUR). It sits in the middle of the three operators on price and data, and its add-on structure is the most flexible for travelers who need burst data on specific days.

The plan includes:

• 14 GB of 4G/5G data, valid for 30 days
• 450 national minutes
• 75 international minutes to EU countries, Turkey, and Serbia
• 30-day validity from activation
• eSIM available at purchase in official Yettel stores

Yettel’s data add-ons: 7 GB for 9 BGN (approx. 4.60 EUR), 15 GB for 14 BGN (approx. 7.16 EUR), or a Daily Unlimited Data pass for 7 BGN (approx. 3.58 EUR), valid for 24 hours. That daily unlimited pass is useful for specific situations — say you’re on a long overnight bus from Sofia to Varna and want to watch a film, or you’re attending a festival and expect to burn through data quickly.

Yettel is also notable for including Turkey and Serbia in its international minutes, which is relevant if you’re traveling through the Balkans on a broader regional trip. Yettel top-ups can be done through the Yettel App (iOS and Android), at Yettel.bg, at retail stores, or through EasyPay and B-Pay payment terminals, which are found in thousands of locations across Bulgaria including petrol stations, pharmacies, and convenience stores. Balance check: dial *123# or use the app.

Yettel’s official website is www.yettel.bg.

Side-by-Side: Which Plan Wins on Paper?

Here’s a direct comparison of all three 2026 tourist plans to help you make a fast decision:

• A1 Connect Tourist 2026: 18 BGN / ~9.20 EUR — 15 GB data, 500 national min, 100 intl min (EU/US/UK), 30 days, eSIM yes
• Vivacom Traveler Data 2026: 16 BGN / ~8.18 EUR — 12 GB data, 400 national min, 50 intl min (EU only), 30 days, eSIM yes
• Yettel Go Travel 2026: 17 BGN / ~8.69 EUR — 14 GB data, 450 national min, 75 intl min (EU/Turkey/Serbia), 30 days, eSIM yes

On pure data volume, A1 leads with 15 GB for 18 BGN. Vivacom is the cheapest entry point but offers the least data and the most restricted international calling. Yettel is the best middle ground for Balkans travelers who need regional calling coverage.

If you mostly use data (WhatsApp, Google Maps, streaming), the 2 BGN difference between Vivacom and A1 is minor — you might as well pay 18 BGN for the extra 3 GB buffer. If you’re calling home to non-EU numbers regularly, A1’s 100 international minutes to the US and UK make it the clear choice. If you’re traveling onward to Serbia or Turkey after Bulgaria, Yettel’s included international minutes to those countries are a practical bonus.

eSIM in Bulgaria 2026: The Biggest Change Since 2024

If you used a Bulgarian prepaid SIM back in 2024, you’ll remember that eSIM was essentially off the table for tourists. It existed for postpaid contracts, but walking into a store and getting a prepaid eSIM activated on your iPhone or Android was either not offered or extremely complicated.

That has changed in 2026. All three major operators — A1, Vivacom, and Yettel — now offer prepaid eSIM for their tourist plans. The process is straightforward: you visit an official store, present your passport, choose your plan, and the staff generate a QR code that you scan with your phone to install the eSIM profile. The whole process takes about 10–15 minutes.

The practical benefit is significant. You keep your home SIM active in your phone’s physical slot (useful for two-factor authentication messages from your bank, for example) while running the Bulgarian eSIM as your primary data and local calls SIM. No fumbling with a SIM tray tool in the airport, no risk of losing a tiny physical card.

Before you leave home, check two things: first, confirm your phone is eSIM compatible (most flagship smartphones released after 2021 are, including iPhone XS and later, Samsung Galaxy S20 and later, and Google Pixel 3 and later); second, confirm your phone is not eSIM-locked to your home carrier. Some budget carriers in the US and parts of Asia lock eSIM to their own network even on unlocked devices — contact your carrier to check if you’re unsure.

If your device doesn’t support eSIM or you simply prefer a physical SIM, that option remains fully available at all three operators. Physical SIM cards are not being phased out.

Where and How to Buy Your SIM Card

The unambiguous recommendation is to buy your SIM at an official operator store. Here’s why: the staff handle the mandatory passport registration for you, they activate the SIM on the spot, they insert it into your phone and confirm it’s working, and they can answer questions about add-ons. The whole process is smooth and takes under 20 minutes.

At airports: Sofia Airport (SOF), Varna Airport (VAR), and Burgas Airport (BOJ) typically have operator kiosks or small store branches in the arrivals area. Selection may be slightly limited compared to a full retail store, and occasionally prices run marginally higher at airport locations. If you’re arriving at Sofia, there are full-service stores for all three operators within easy reach in the city center and in nearby shopping centers like Mall of Sofia or Paradise Center — both reachable from the airport in under 30 minutes on the Metro Line 2 extension that opened fully in 2025.

In cities: You’ll find official A1, Vivacom, and Yettel stores in every major Bulgarian city — Sofia, Plovdiv, Varna, Burgas, Stara Zagora, Ruse. Shopping malls almost always contain at least two of the three operators. Use the store locator on each operator’s website to find the nearest branch.

Supermarkets and kiosks: You may spot prepaid SIM starter packs or top-up scratch cards at Kaufland, Lidl, or Billa supermarkets, and at news kiosks. These smaller retail packs can work, but the activation process may require a separate online registration step that can be confusing without Bulgarian language skills. For a first-time purchase, skip the supermarket and go to an official store.

What to bring: Your passport (mandatory — there is no way around this requirement) and the phone you intend to use. If you want an eSIM, confirm your phone is eSIM-capable before arriving at the store. If you’re buying a physical SIM for a dual-SIM phone, have the second SIM slot accessible.

Topping Up and Managing Your Data on the Go

Running out of data halfway through a two-week Bulgaria trip is more annoying than expensive — top-ups are cheap and fast once you know how the system works.

The easiest method is the operator’s own app. The My A1 app, My Vivacom app, and Yettel App all accept international Visa and Mastercard credit and debit cards. Open the app, log in or register with your Bulgarian phone number, and buy a data add-on or general top-up credit in under two minutes. This works anywhere you have even a weak data connection — the irony of needing data to buy data is solved by the fact that you’ll typically still have some remaining balance triggering the top-up, rather than waiting until you hit absolute zero.

Scratch cards are a reliable offline fallback. You’ll find 5 BGN, 10 BGN, and 15 BGN scratch cards sold at petrol stations, kiosks, supermarkets, and tobacconists across Bulgaria. Scratch off the code and follow the USSD instructions printed on the card — usually something like dialing *100*[code]# for A1. The credit loads within seconds and a confirmation SMS arrives shortly after. The smell of a Bulgarian petrol station forecourt — diesel, fresh bread from an attached bakery, and the faint tang of windshield wiper fluid — is a strangely reliable backdrop for the scratch-card top-up experience.

For Yettel users, EasyPay and B-Pay terminals are an additional option found in pharmacies, post offices, and convenience stores. Select the mobile top-up function, enter your Yettel number, choose the amount, and pay cash. No scratch card needed.

Keep track of your remaining data by dialing *100# on A1 or *123# on both Vivacom and Yettel — a free USSD query that returns your balance and data remaining via an on-screen popup. This costs nothing and works even when your account balance is very low.

Free WiFi in Bulgaria: Where It Works and Where It Doesn’t

Having a local SIM doesn’t mean you’ll never use WiFi — and understanding where Bulgarian public WiFi is actually reliable saves frustration.

Hotels and accommodation: Nearly universal across Bulgaria in 2026. Hotels, guesthouses, Airbnb apartments, and mountain huts that serve tourists almost all offer free WiFi. Quality varies — a boutique hotel in Sofia will have fast fiber-backed WiFi, while a remote mountain guesthouse might offer slow but functional connectivity. It’s almost always sufficient for browsing and messaging.

Cafes and restaurants: Most cafes in Sofia, Plovdiv, and Varna have free WiFi with a password on the receipt or available from staff. The coffee culture in Sofia is genuine — sitting in a warm café on Vitosha Boulevard while the autumn rain hits the window outside, nursing a flat white and using the WiFi to plan tomorrow’s Rila day trip, is one of the city’s simple pleasures. Just ask staff for the password (in Bulgarian: “Паролата за WiFi?” / “Parolata za WiFi?”).

Public WiFi in city squares: Sofia and Plovdiv have free public WiFi zones in some central areas, but coverage is inconsistent and speeds are unreliable. Don’t depend on it for navigation or anything time-sensitive. Avoid banking or sensitive logins on public WiFi without a VPN.

BDZ trains: Officially, some newer BDZ rolling stock has WiFi. In practice, it’s unreliable and frequently not working. If you’re taking a train journey — say the Sofia to Plovdiv route — budget for your mobile data to carry you through. The countryside rolling past the window is the main entertainment anyway.

Intercity buses: Some modern coaches from operators like Union Ivkoni and Biomet advertise onboard WiFi, and it generally works on motorway stretches. It drops out in tunnels, mountain sections, and rural areas. Useful for light browsing but not reliable enough for calls or streaming.

Shopping malls: Consistent free WiFi throughout. Good for a reliable session if you need to sort out travel logistics or do a video call.

2026 Budget Reality: What You’ll Actually Spend on Connectivity

Here’s what realistic connectivity costs look like across different traveler types visiting Bulgaria in 2026:

Budget Traveler (1–2 weeks, light data user)

Buy the Vivacom Traveler Data 2026 at 16 BGN (~8.18 EUR / ~9 USD). 12 GB is enough for navigation, messaging, light social media, and occasional streaming if you’re also using hotel WiFi in the evenings. Total connectivity spend for a two-week trip: 16 BGN, possibly plus one 6 BGN top-up if you run low = 22 BGN (~11.25 EUR).

Mid-Range Traveler (2–3 weeks, regular data user)

A1 Connect Tourist 2026 at 18 BGN (~9.20 EUR) gives you 15 GB. Add one 10 GB top-up for 12 BGN if you’re on an active three-week trip. Total: 30 BGN (~15.34 EUR / ~17 USD). This covers navigation, streaming music, daily Instagram posts, and video calls home without stress.

Comfortable Traveler (unlimited mindset, or heavy user)

Start with any of the three tourist plans, then activate A1’s 7-day unlimited add-on (20 BGN / ~10.23 EUR) for the peak of your trip when you’re moving around a lot. Total for a two-week trip with one unlimited week: approximately 38–40 BGN (~19–20 EUR / ~22 USD). Still dramatically cheaper than most home-carrier roaming packages for the same period.

For reference, the fixed EUR/BGN exchange rate is 1 EUR = 1.95583 BGN — this is a permanent peg, not a floating rate, so the conversion is always predictable.

Common Mistakes Travelers Make (and How to Skip Them)

Arriving with a locked phone: If your handset is carrier-locked to your home network, no Bulgarian SIM will work on it. Check with your carrier before you leave — most carriers will unlock a phone that has completed its contract period at no charge. This is step zero.

Forgetting your passport at the hotel: SIM registration requires a passport. No passport, no SIM. Keep your passport in your day bag on your first morning in Bulgaria, specifically so you can handle the SIM purchase.

Buying from a supermarket without understanding the activation process: Supermarket SIM packs look convenient, but the self-activation can involve Bulgarian-language SMS flows and online registration steps that are confusing under time pressure. First-time visitors to Bulgaria should stick to official stores.

Assuming the airport kiosk will have everything: Airport operator outlets are useful for buying a starter SIM, but their stock of eSIM setups and add-on options can be more limited than a full store. If eSIM is your priority or you want detailed help, catch a metro or taxi to a full retail store in the city center.

Not downloading the operator app before your data runs out: Download the My A1, My Vivacom, or Yettel App while you’re still on hotel WiFi during your first night. Log in, register your number, and save your card details. That way, when you’re standing outside a monastery in the middle of nowhere watching your data bar hit zero, you can top up in two taps instead of hunting for a scratch card.

Relying on public WiFi for navigation: Sofia’s public WiFi zones are fine for a quick check, but they’re not reliable enough to stake a walking tour on. Your mobile data plan should be the backbone of your navigation, with WiFi as a bonus.

Frequently Asked Questions

Do I need a Bulgarian SIM card if I’m an EU citizen traveling from another EU country?

EU roaming rules mean you can use your home plan in Bulgaria without extra roaming charges, subject to your carrier’s fair-use policy. However, if your home plan has limited data or charges for roaming beyond a threshold, a Bulgarian prepaid SIM at 16–18 BGN for 12–15 GB is still worth considering for a trip longer than a few days.

Can I buy a Bulgarian eSIM online before I arrive in Bulgaria?

Not from Bulgarian operators directly — A1, Vivacom, and Yettel all require in-person passport verification at an official store to activate a prepaid eSIM in 2026. Third-party global eSIM providers like Airalo or Holafly do sell Bulgaria data eSIMs online, but their per-GB costs are typically higher than buying locally. If you want the best value, buy in-country.

How good is mobile coverage outside the cities?

Coverage along highways and in towns is reliable across all three networks. Deep mountain valleys, parts of the Rhodopes, and very remote areas of Strandzha can have limited or no signal. All three operators publish coverage maps on their websites — check the specific areas on your itinerary before heading off-grid, and download offline maps to Google Maps or Maps.me as a backup.

What happens if my 30-day SIM plan expires before I use all my data?

Unused data and minutes expire when the plan validity period ends. There is no rollover. If you’re staying longer than 30 days, you’ll need to purchase a new plan or top up with a data add-on before the current plan expires to maintain continuous service. Set a reminder a few days before the 30-day mark.

Is 5G available on prepaid tourist SIM plans in Bulgaria in 2026?

Yes. All three 2026 tourist plans — A1 Connect Tourist, Vivacom Traveler Data, and Yettel Go Travel — include 4G/5G data access. 5G coverage is active in Sofia, Plovdiv, Varna, Burgas, and expanding. In areas without 5G signal, your phone automatically falls back to 4G/LTE with no action required on your part.

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📷 Featured image by Clem Onojeghuo on Unsplash.