Free eSIM for Hungary 
3 GB of free data across Hungary — from the Chain Bridge at dusk to the thermal baths of Eger. Install before your flight, walk out of Ferenc Liszt already online, and skip the Magyar Telekom window at the arrivals hall.
Free for new users · Credit card for identity verification only — never charged · Valid 3 days
Why an eSIM beats a Magyar Telekom prepaid
Hungarian prepaid SIMs require passport registration at the point of sale — a rule in place since 2018 — and you'll be asked for a Hungarian address even if you're only here for a weekend. Telekom's Domino tourist pack runs around 4,500 HUF for 10 GB, fair value, but the shop queues at Ferenc Liszt Airport can eat an hour on busy Saturday mornings. 99esim is a QR-code install on the plane, no forint conversion, no address form, and the first 3 GB are free.
- No passport-address registration at a Hungarian telco counter
- Works around Lake Balaton, Eger, Pécs and all the way to the Croatian border
- Keeps your home number live for SMS 2FA
- 3 GB is enough for a long weekend of Buda + Pest + a day trip
How Hungarian networks handle 99esim
99esim's primary host in Hungary is Magyar Telekom — the largest network by coverage, especially in the Great Plain and along Lake Balaton. 5G is live across Budapest, Debrecen, Szeged, Győr and Miskolc, plus the M1 and M7 motorways. Rural coverage is excellent by regional standards: Telekom invested heavily in the 2020 spectrum refarm to push LTE into the Puszta heartland.
Arriving at a Hungarian airport
Ferenc Liszt handles most international traffic; Debrecen is a small but growing Wizz Air hub. Both have full 5G at gates. Your eSIM connects the moment airplane mode is off, so you can book a Bolt from baggage claim in Hungarian forint directly.
Terminal 2A and 2B both have full 5G. The 100E express bus to Deák Ferenc tér runs every 10 minutes and stays connected the whole way — easier than the taxi queue.
Hungary's second airport, 5 km from town. Bus 25 goes straight to Nagytemplom — full 4G on the route. Growing Wizz Air presence here for Ryanair alternatives.
Seasonal arrivals for Lake Balaton spa traffic. Signal is reliable around the terminal and along Route 76 into Keszthely. Taxi service is limited — book ahead.
Tiny regional field used for charters. 4G is steady in the area but you'll almost certainly arrive in Budapest and drive here — the M1 motorway connection is fully covered.
Seasonal, mostly Wizz and charter traffic. Signal on the 25-minute drive to central Pécs holds all the way through the vineyards along Route 58.
Where your free eSIM works best
What 3 GB actually gets you in Hungary
Budapest is sprawling and Hungarian is genuinely impossible to read — so you'll lean hard on Maps and Translate. Here's how 3 GB splits in practice:
Hungary-specific travel tips
The M1 Millennium Metro
Budapest's M1 is the oldest electrified underground on the continent, opened in 1896. Magyar Telekom retrofitted DAS in 2020 — you now get solid 4G in the shallow tunnels between Vörösmarty tér and Mexikói út. The deeper M2, M3 and M4 are also fully covered.
Thermal bath Wi-Fi etiquette
Széchenyi, Gellért and Rudas all have free WiFi in the lobby but it drops the moment you're in the pools. Your eSIM holds steady even in the outdoor steam areas at Széchenyi. Keep it in a waterproof pouch — most regulars do.
Lake Balaton coverage
The south shore (Siófok, Zamárdi, Balatonfüred) has full 5G through the whole summer season. The north shore around Tihany is more hilly but still reliably 4G. Boat trips across the lake stay online to about 3 km from either shore.
Wine cellars in Eger and Tokaj
Eger's Valley of the Beautiful Women is a cluster of cellars dug into the hillside — 4G penetrates the first few metres of cellar but drops deeper in. Tokaj cellars are often 30+ metres underground; expect no signal past the entrance.
Border hops to Vienna or Slovakia
Your plan covers 39 European countries — crossing to Bratislava (2.5 hours by train) or Vienna (2.5 hours by RailJet) is seamless. The network swap at the border causes a 10-second data pause, nothing more.
Travelers who used 99esim in Hungary
"Long weekend in Budapest for the thermal baths. eSIM worked everywhere — Széchenyi, Gellért, even in the cellar restaurants off Váci utca."
"Rented a car and drove around Lake Balaton. The eSIM held all the way from Siófok to Keszthely on Route 71. Google Maps never rerouted."
"Took the night train from Vienna to Budapest. Border handoff was smooth, only a few seconds of data gap. Woke up already online at Keleti station."
Frequently asked — Hungary edition
Does the free eSIM work on the M1 Metro line?
Yes. The M1, despite being over 125 years old, was fitted with distributed antenna systems in 2020 and now has full 4G coverage in every tunnel section. The M2, M3 and M4 are also covered end-to-end, with the M4 having the strongest signal since it's the newest line.
Will I need to provide a Hungarian address like for a local SIM?
No. Hungary's SIM registration law applies only to physical prepaid cards bought within the country. Since your 99esim profile is issued internationally, you're exempt from the address and passport registration steps.
Is the eSIM usable at Lake Balaton?
Absolutely. Both shores have strong Telekom and Yettel coverage, with full 5G in summer-heavy spots like Siófok and Balatonfüred. On a ferry crossing, expect to stay connected for roughly 3 km from either shore before a brief midwater gap.
Can I use it across the border in Austria or Slovakia?
Yes — 39 countries are included in the same profile. Taking the train to Bratislava or Vienna is seamless; your phone hands off to the new operator automatically. You'll see the operator name change but data doesn't stop.
Is 5G included in the free plan?
Yes. If you're in a 5G-covered area (all five big cities plus Hévíz and Siófok in summer) and your device supports it, the eSIM uses 5G automatically. Data counts the same rate as 4G.
What happens after I use the 3 GB?
Top up in the 99esim app — Hungary-specific add-ons start at around €2.99 for 1 GB. Takes under a minute, no auto-renewal, no card surprises. Your profile stays active for the full 30-day window either way.
Free eSIM in other European countries
Your 3 GB works in all 39 countries. Here are a few more popular destinations:
See all 39 countries →
Ready to claim your free 3 GB in Hungary?
Install the 99esim app, create a free account, and your data is live in about 90 seconds.