Hungary is easy to stay connected in: Budapest has strong 4G and 5G, Lake Balaton and the Danube Bend are well covered, and travel data is cheap. Two things are worth knowing: Hungary borders Serbia and Ukraine, both outside the EU, and Budapest is often one stop on a longer Central European trip.
Short answer: a 5GB Hungary plan suits a week in Budapest. Combining Vienna, Prague and Budapest? Compare a Europe bundle.
What a Hungary eSIM costs
At the time of writing (October 2026), Wanderly's Hungary plans start at $2.99 for 1GB, with 10GB for 30 days around $8. The median across data-only Hungary plans is about $0.80 per GB, well under the $1.43 median across 187 countries in the Wanderly eSIM Price Index.
Do you need an eSIM with your phone plan?
EU plans roam in Hungary at domestic rates, subject to fair use. UK, US and Canadian plans usually charge for roaming — see eSIM vs international plan.
Coverage where you will actually be
Hungary's networks are Magyar Telekom, Yettel and One. Travel eSIMs connect to a partner network automatically.
- Budapest (including the metro and the Danube banks): excellent.
- Thermal baths: coverage is fine, but keep your phone away from the water.
- Lake Balaton: good around the lake.
- Danube Bend (Szentendre, Visegrád): good in towns.
- Eger and Tokaj wine regions: good in towns.
- Southern border near Serbia: phones can pick up Serbian networks, which are outside the EU. Keep your home line's data roaming off.
How much data you need
| Trip | Suggested data |
|---|---|
| Budapest long weekend | 1–3 GB |
| One week | 5 GB |
| Two weeks or remote work | 10–20 GB |
See how much data you need for travel.
Hungary on a Central European trip
A Hungary plan covers Hungary only. Doing Vienna, Prague and Budapest? See the best eSIM for Austria, the best eSIM for the Czech Republic and the best eSIM for Europe.
Setting it up
- 1Confirm your phone supports eSIM and is unlocked on our compatibility checker.
- 2Install the eSIM over WiFi before you fly — iPhone or Android steps.
- 3On arrival, select the eSIM for mobile data and turn on data roaming for that line.
FAQ
How much does an eSIM for Hungary cost? Wanderly Hungary plans start at $2.99 for 1GB, with a median of about $0.80 per GB.
Does my EU plan work in Hungary? Yes, under EU roaming rules, subject to fair use.
Does a Hungary eSIM work in Vienna? Not unless the plan lists Austria.
Is there coverage at Lake Balaton? Yes, around the lake and in the resort towns.