Best eSIM for Bulgaria

Bulgaria changed its money in the middle of the year this page covers, and that single fact reshapes how you shop for data here. The lev was retired on 1 January 2026, the euro became the only legal tender on 1 February, and the last mandatory dual price tags came down on 8 August, nine days before this guide was updated. Every carrier tariff card, top-up terminal and ticket machine in the country now quotes euro alone. What that reveals, once the conversion arithmetic is gone, is a market where a month with 25 GB from a Bulgarian operator costs about the same as two coffees on Vitosha Boulevard. Our pick among travel eSIMs is Nomad, which rides Yettel, the network that took reliability, 5G availability and time on network in the January 2026 Bulgarian measurement round. Airalo is the alternative if you would rather be on A1 and its considerably faster 5G, and Holafly is the one to take for a Bansko ski week or a coast fortnight in August, when unlimited stops being a luxury. If your route is doing something less typical than that, the eSIM Finder will size it for you.

Quick Pick: the Best eSIM for Bulgaria

Nomad (Bulgaria 10 GB / 30 days): Rides Yettel, the only Bulgarian operator to take three separate awards in the January 2026 measurement round including 5G availability and reliability, which is what you notice on a trip that keeps moving between metro tunnels, mountain roads and the coast.

Bulgaria eSIM Plans Compared

Indicative pricing. Tap through for live rates.

Airalo Bulgaria Plans

Airalo sells Bulgaria under the Bultel label and puts it on A1, which is the largest of the three operators with roughly 2.9 million lines and about 36 percent of the market. A1 reported over one billion euro of revenue for 2025 and it shows in the engineering: its 4G reaches beyond 99 percent of the population, it was first to switch on nationwide 5G, and independent measurement puts its 5G downloads at the top of the Bulgarian table at around 466 Mbit/s with an all-technology average near 114 Mbit/s. If your idea of a good connection is a fat pipe in a city, this is the network that delivers it.

The plan ladder is where Airalo separates itself here. A 10 GB week lands near eleven dollars and the 50 GB tier sits around thirty-six, which is a serious amount of data for a fortnight of Plovdiv, Veliko Tarnovo and a stretch of coast. Bulgaria is also a country where you rarely burn your allowance as fast as you expect, because guesthouse and cafe WiFi is universal and the Sofia metro puts free WiFi on its platforms. A metered plan usually outlives the trip.

Holafly Bulgaria Plans

Holafly is the only one of the three that does not tie you to a single Bulgarian operator. Its Bulgaria product can register on A1, Vivacom or Yettel, which matters more here than in most European markets because the January 2026 measurement round split the honours three ways rather than crowning one winner. Vivacom took the coverage and 5G coverage categories, Yettel took availability and reliability, A1 took consistent quality. A plan that can move between all three is buying insurance against whichever weakness bites on the day.

The place that insurance earns its keep is a winter week. Bansko and Borovets fill hotel beds far above what the local population would ever justify, lift queues concentrate hundreds of phones in one spot, and the day is spent switching between a piste map, a weather radar and a group chat that will not stop. Unlimited data removes the arithmetic from that. The same logic applies in the last fortnight of August on the southern coast, when resort cells carry several times their winter load. Where Holafly makes no sense is a quiet four-day city break, because you will not come close to using what you paid for.

Nomad Bulgaria Plans

Nomad puts Bulgaria on Yettel, the smallest of the three operators at roughly 2.3 million lines and about 31 percent of the market, and on paper that sounds like the wrong horse. The measurements say otherwise. In the January 2026 Bulgarian assessment Yettel was the only operator to win three separate categories, taking 5G availability, reliability experience and time on network. Availability and reliability are unglamorous metrics that describe how often your phone is actually on a modern network and how often ordinary tasks simply complete. On a trip that keeps moving between a metro tunnel, a mountain road and a beach promenade, those are the numbers you feel.

Pricing follows the same practical logic. Ten gigabytes over thirty days sits around sixteen dollars and twenty gigabytes around twenty, which for most visitors is more than a fortnight needs. Nomad also sells short unlimited blocks, three days near eleven dollars and a week near twenty-five, which is a neat middle option for a ski trip that does not run long enough to justify Holafly's longer packages. Note that daily high-speed data resets every 24 hours on those, with the throttle dropping to 512 kbit/s afterwards.

Mobile Networks in Bulgaria

Bulgaria runs three mobile networks and, unusually, no single one of them wins. The January 2026 national measurement round handed out awards in three directions: Vivacom kept both the coverage experience and 5G coverage experience titles, Yettel took 5G availability, reliability experience and time on network, and A1 held on to consistent quality. Raw speed is a separate contest again, and A1 wins that one outright with 5G downloads around 466 Mbit/s and an all-technology average near 114 Mbit/s, ahead of Vivacom at about 96 and Yettel at about 90. There is no lazy answer here, which is why the recommendation on this page depends on what your Bulgaria looks like rather than on a single league table.

The subscriber split is unusually even for a European market. A1 Bulgaria, the old Mobiltel, leads with roughly 2.9 million lines and about 36 percent, on more than a billion euro of 2025 revenue. Vivacom, the former state incumbent and now part of United Group, holds around 2.6 million lines and 32 percent on 776 million euro, and it is the one to name if you want reach: its 5G reportedly passes 92 percent of the population and its 4G covers about 99 percent, which puts Bulgaria well up the EU table on 5G penetration. Yettel, which most guidebooks still call Telenor, has around 2.3 million lines, 31 percent and 556 million euro. The whole Bulgarian telecoms market turned over 2.16 billion euro in 2025, up close to five percent, and every euro of that is now literally a euro.

One consequence worth flagging before you land: the changeover has been a gift to anyone in Bulgaria who makes money on confusion. The tourist-facing version of this is the taxi driver who quotes a number that used to be a lev number, and the well-documented Sofia Airport case of a fare presented as 84 euro when it should have been 84 lev, a shade over 40. Arriving with working data and a ride-hailing app open is a straightforwardly cheaper way to leave the airport than arguing about a decimal point at the kerb.

Coverage Across Bulgaria

Coverage where travelers actually go:

How to Choose the Right Plan

Start with the season, because Bulgaria has two visitor countries inside one border and they stress a network in completely different ways. A winter trip to Bansko or Borovets is a heavy-data week in a small place with a temporarily enormous population, and that argues for either Holafly's unlimited days or one of Nomad's short unlimited blocks. A July or August week on the southern coast has the same shape: Sunny Beach and Golden Sands carry many times their off-season load and the evening slowdown is real, so unlimited saves you rationing at exactly the hour you want to send photos. A spring or autumn run through Sofia, Plovdiv and Veliko Tarnovo is the opposite, a low-data trip through excellent WiFi, and a 5 or 10 GB metered plan from Airalo or Nomad will finish the fortnight with room to spare.

Then pick the network you want underneath it. Airalo buys you A1 and the country's fastest speeds, Nomad buys you Yettel and the best availability and reliability scores, Holafly buys you the ability to sit on whichever of the three is behaving. Last, be honest about length of stay. Bulgarian prepaid cards are cheap enough that anyone here beyond about three weeks should walk into an A1, Yettel or Vivacom shop with a passport and buy locally, and our Bulgaria SIM card guide sets out what each of them now charges in euro.

Frequently Asked Questions

Bulgaria uses the euro now, so what does mobile data actually cost?

Less than almost anywhere else in the euro area. Bulgarian operators re-denominated rather than repriced, so a package that read 20 lev in 2025 reads about 10.23 euro today, and the going rate for a tourist bundle of 10 to 25 GB with a month of validity sits between roughly 5 and 14 euro. Travel eSIMs are pricier per gigabyte, as they are everywhere, with 10 GB from Airalo or Nomad landing around eleven to sixteen dollars and Holafly's unlimited days from about 3.90. Since 9 August 2026 shop tariff cards show euro only, so you can compare without doing arithmetic in the queue.

Which of the three Bulgarian networks is the one to be on?

It genuinely depends on what you want out of it, because the January 2026 assessment split the honours. Vivacom won coverage and 5G coverage, so it is the pick if your route runs through small Rhodope or Danube villages. Yettel won 5G availability, reliability and time on network, which is what you feel on a trip that keeps moving. A1 won consistent quality and is comfortably the fastest on raw 5G download at around 466 Mbit/s. For a normal visitor itinerary any of the three is more than adequate inside the cities, and the differences only start to matter off the motorways.

Does my EU roaming allowance from another member state cover Bulgaria?

Yes, and since Bulgaria is now in the euro area as well there is not even a currency wrinkle left. A plan bought in Germany, Ireland or Spain roams here at domestic rates under roam-like-at-home rules. The catch is the fair-use ceiling attached to your plan, which is calculated from what you pay and is frequently a fraction of your domestic allowance, so a big home bundle can shrink to a few gigabytes at the border. Check the fair-use number in your contract before assuming you are covered for a fortnight of navigation and video calls.

Will my phone work on the slopes at Bansko and Borovets?

In the resort towns and on the main marked pistes, yes, on all three operators, and Bansko additionally runs a free WiFi service in its ski zone that covers the busier lift areas. What thins out is the back country: the Pirin ridges above the top station, the tree runs off the marked trails and the hike-to terrain around Todorka lose signal quickly. Ski patrol and lift staff assume you have a phone that works, so the practical advice is to download the piste map before you get on the gondola rather than at the top of it.

Do the Black Sea resorts get slow in the middle of summer?

In the evenings of July and August, yes, noticeably. Varna and Burgas behave like proper cities and hold up, but Sunny Beach, Golden Sands and Albena are small places carrying a summer population many times their winter one, and cells that are ample in May start queueing at around nine at night when the whole strip decides to upload the day. Coverage is not the problem, capacity is. If a working connection at dinner matters to you, that is the strongest single argument for an unlimited plan on a coast trip rather than a tight metered one.

Is a passport needed to buy a Bulgarian prepaid SIM?

Yes. Bulgaria registers prepaid lines against an identity document and the shop assistant will record your passport details before the number goes live, so the anonymous card you might remember from a trip fifteen years ago no longer exists here. There is also a cap of ten SIMs per person, which no visitor will ever meet. It is a five-minute step rather than an ordeal, but it does mean every person in your group needs to be at the counter for their own line, and it is the one piece of admin an eSIM removes completely.