Bulgaria Roaming Price Audit: Local Networks, Two Prices

T-Mobile's Experience plans include 5GB or 15GB of high-speed data in Bulgaria, then at a reduced speed, and Essentials includes texting only. AT&T costs $12/day and Verizon costs $12/day for full speed. Five eSIM providers undercut all three on a local 4G LTE network from $2.21 for 1GB. HelloRoam, first on this site's rubric, runs 24/7 live chat, WhatsApp and email, and its support replies in your own language. Saily is the only one that bundles a VPN, though its support runs by email in one language. Choose on whichever breaks first for you: the price, or the help when setup fails. Rates checked June 2026.

It depends on the plan. T-Mobile's Experience More plan includes 5GB of high-speed data abroad and Experience Beyond 15GB, then data runs at up to 256Kbps. Essentials includes texting but no data. For more high-speed data in Bulgaria, a week of International Passes costs $50 (10-day pass), against $84 on AT&T. On a local 4G LTE network, fixed eSIM plans start at $0.77/GB. HelloRoam's 7-day unlimited plan has the lowest median of the five at $21.50 across 35 countries, against $27.50 on Holafly. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.

Your carrier uses one of two models. Per-day billing: AT&T charges $12 and Verizon charges $12 for each 24 hours from the first time your phone connects in Bulgaria, even if you only checked one notification. Per-MB billing: without the $12/day pass, AT&T charges $2.05 per megabyte, which reaches $2,099 per gigabyte. Both models charge for background data you never asked for. The eSIM market runs on two different models: a fixed bucket you pay for upfront at 1GB for $2.21, or an unlimited plan, where HelloRoam's 7-day median is $21.50 against $27.50 on Holafly. Neither meters megabytes. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.

The five differ more here than they do on price. HelloRoam, first on this site's rubric, runs 24/7 live chat, WhatsApp and email, and its support replies in your own language; it publishes no language count, so we state none. Holafly runs 24/7 chat in 10 languages. Airalo answers by email and in-app chat in 12 languages. Nomad is email only in 2 languages. Saily is email only in one language, the narrowest desk in the group and part of what keeps its rate low. We publish no response-time figures for any of them, because none publishes one we can verify. Credit where it is due: AT&T and Verizon put a phone line and a retail store behind the $12/day pass, which counts for something at 2 AM in Bulgaria. Rates checked June 2026.

Only if you never activated it, and the window varies more than any other term in this market. HelloRoam and Holafly refund unactivated plans for 180 days, the longest here and a genuine tie. Saily runs 30 days and Nomad runs 30. Airalo runs 14 days, the shortest of the five. Once the QR code is scanned and the profile lands on your phone, none of them refunds it, whether or not you traveled. AT&T works differently: International Day Pass at $12/day only bills on days the pass activates in Bulgaria, so a cancelled trip costs nothing at all. Read the refund clause before you buy, not after. Rates checked June 2026.

Because the rule binds European operators, not American ones. "Roam like at home" caps what a European carrier may charge its own subscribers inside the bloc. AT&T, Verizon, and T-Mobile sell US plans, so nothing in Bulgaria obliges them to follow it. They apply their standard international rates instead: AT&T and Verizon $12 per 24 hours, and T-Mobile 5GB or 15GB of high-speed data on its Experience plans, then up to 256Kbps. A travel eSIM skips the policy question by buying local capacity directly at $0.77/GB on a local 4G LTE network. UK travelers should read their own tariff: Vodafone and EE include EU destinations on most plans, though not on all of them. Rates checked June 2026.

No. AT&T International Day Pass costs $12/day in all European countries including Bulgaria. Over 7 days that is $84. A 5GB eSIM plan costs $5.20 for the same period on A1 Bulgaria. The eSIM saves 94% and does not charge you on days when you only use WiFi — unlike the day pass, which triggers the moment any cellular data is used.

Pick on coverage count first, price second. A regional Europe plan puts the whole route under one data bucket, so crossing a border costs nothing extra. Airalo and Holafly each list 200+ destinations and Nomad lists 200. Airalo's 5 GB plan works out at $2.40/GB on the 30 Oct 2026 medians. HelloRoam covers 185 at $2.01/GB, the lowest median 5 GB rate here; Nomad runs $2.30/GB. Holafly sells unlimited only, at a 7-day median of $27.50, across 200+ destinations, level with Airalo. AT&T and Verizon charge $12/day in every Schengen country alike, so four countries over two weeks through Bulgaria still bills $120. Carrier rates checked June 2026; eSIM prices from the 30 Oct 2026 price check.

GDPR governs how companies process personal data, not how your phone uses mobile data. A travel eSIM in Bulgaria connects to a local network — the same infrastructure AT&T and Verizon route roaming through. GDPR does not change connection speeds, pricing, or data limits. Both carrier roaming and travel eSIMs log metadata (connection times, data volumes) as part of standard carrier operations. GDPR applies to the provider's handling of that log data, not to your browsing or usage.

AT&T: $84/week (International Day Pass at $12/day). Verizon: $84/week (TravelPass). T-Mobile: 5GB or 15GB of high-speed data included on its Experience plans, then up to 256Kbps, or $50 for a week of passes (10-day pass). The cheapest eSIM for Bulgaria starts at $0.77/GB on a local 4G LTE network — better per-GB value than all three carriers.