For most trips built around Budapest, Airalo is the sensible default eSIM for Hungary, because it rides Yettel, the network that took Hungary's fastest-mobile award by a wide margin in the national regulator's testing, and because Hungary sits inside the EU, which changes the connectivity math versus a far-flung destination. Any Europe-wide regional eSIM already covers Hungary with no roaming surcharge under the Roam Like at Home rules, so a single profile carries you from a soak at the Szechenyi baths to a Danube Bend day trip and straight on across the border if your route continues to Vienna or Bratislava. If you would rather never watch a counter while you upload a night in the District VII ruin bars or livestream from Gellert Hill, Holafly sells unlimited data on Yettel and One. Travelers who can estimate their gigabytes pay the least with Nomad, while Airalo balances price, coverage, and a polished app for a city-plus-day-trips week. Unsure how much data a long weekend of maps and photos really burns? The eSIM Finder will size it.
Quick Pick: the Best eSIM for Hungary
Airalo (Hungary 5 GB / 30 days): Runs on Yettel, Hungary's fastest network in national testing, with full signal in the Budapest metro tunnels, hotspot support, and in-app top-ups for a week of city sightseeing plus day trips to the Danube Bend or Lake Balaton.
Our picks
Best overall: Airalo. Lowest per GB: Nomad. Unlimited: Holafly. Or use the eSIM Finder.
Hungary eSIM Plans Compared
Indicative pricing. Tap through for live rates.
| Provider | Plan | Data | Duration | Price | Network |
|---|---|---|---|---|---|
| Airalo | Hungary 1GB | 1 GB | 7 days | $5 | Yettel |
| Airalo | Hungary 3GB | 3 GB | 30 days | $11 | Yettel |
| Airalo | Hungary 5GB | 5 GB | 30 days | $16 | Yettel |
| Airalo | Hungary 10GB | 10 GB | 30 days | $26 | Yettel |
| Airalo | Hungary 20GB | 20 GB | 30 days | $37 | Yettel |
| Nomad | Hungary 1GB | 1 GB | 7 days | $4 | Yettel / One |
| Nomad | Hungary 5GB | 5 GB | 30 days | $14 | Yettel / One |
| Nomad | Hungary 10GB | 10 GB | 30 days | $22 | Yettel / One |
| Nomad | Hungary 20GB | 20 GB | 30 days | $32 | Yettel / One |
| Holafly | Unlimited 5-day | Unlimited | 5 days | $19 | Yettel / One |
| Holafly | Unlimited 7-day | Unlimited | 7 days | $27 | Yettel / One |
| Holafly | Unlimited 10-day | Unlimited | 10 days | $34 | Yettel / One |
| Holafly | Unlimited 15-day | Unlimited | 15 days | $47 | Yettel / One |
| Holafly | Unlimited 30-day | Unlimited | 30 days | $69 | Yettel / One |
Airalo Hungary Plans
Airalo: Best All-Round Pick on Hungary's Fastest Network
Hungary plans on Yettel with full hotspot support and easy top-ups
Airalo's Hungary eSIM connects through Yettel, the carrier that won Hungary's fastest-mobile title in the national regulator's testing, which pairs a smart default network with the reassurance of an established global eSIM brand. For a typical Budapest-plus-day-trips itinerary it is the easy pick: the same profile holds signal in the metro tunnels, keeps up in the crowds around the Szechenyi baths and the Central Market Hall, and stays online on the HEV out to Szentendre or the train down to Lake Balaton.
The 1GB plan suits a long weekend leaning on hotel and cafe WiFi, while the 5GB or 10GB plan gives comfortable headroom for a week of maps, bath and ruin-bar bookings, and photo uploads, with in-app top-ups if you run low. If Budapest is one stop on a wider Central Europe trip, Airalo also sells a Europe regional plan that covers Hungary alongside Austria, Slovakia, and Croatia on a single eSIM under EU roaming rules.
Strengths
Weaknesses
Holafly Hungary Plans
Holafly: Best for Unlimited Data and Heavy Use
Flat-rate unlimited data on Yettel and One
Holafly pairs unlimited data with Yettel and One coverage, which makes it the natural choice for anyone who would rather not think about a data cap. Stream on the two-hour train to Eger, run Google Translate camera mode over Hungarian menus all day, and upload a full evening of ruin-bar and river-cruise photos without a second thought. Because the metro tunnels carry signal, you can keep watching as the M2 rolls under the Danube.
Unlimited is also the obvious answer for a longer stay where metered top-ups get fiddly, or when you want one steady plan through a Danube Bend and Balaton loop. Holafly sells both a Hungary plan and a Europe-wide unlimited plan, the latter ideal if Budapest is one leg of a bigger regional trip. Two caveats worth knowing: hotspot sharing is capped at roughly 500 MB a day, and a fair-usage policy can ease speeds after very heavy monthly use, which is standard for unlimited eSIMs.
Strengths
Weaknesses
Nomad Hungary Plans
Nomad eSIM: Best Value Per Gigabyte
Among the lowest per-GB prices for Hungary with hotspot support
Nomad usually posts the lowest headline prices for Hungary, with a 20GB plan that often lands near the value leaders and small buckets that undercut Airalo by a few dollars. For a Budapest city break that leans on hotel WiFi at night, that keeps the trip cheap without giving up much, since Nomad's Hungary data runs on Yettel and One, both fully covered in the metro and strong across the country.
The trade-off versus Airalo is minor here: you are on the same fast Yettel footprint, just without a big-brand app polish, and Nomad also sells a Europe regional plan if your route runs on to Vienna or the Croatian coast. For pure cost per gigabyte on a Hungary-focused trip where you have a realistic read on your usage, Nomad squeezes the most out of your budget.
Strengths
Weaknesses
Mobile Networks in Hungary
Hungary has three mobile networks, and by European standards all three are genuinely strong, so your choice here leans more on speed and price than on surviving dead zones. The operators are Yettel (the former Telenor), Magyar Telekom (the Deutsche Telekom arm and the largest by subscribers), and One, which is what Vodafone Hungary became after its rebrand in early 2025. In Budapest and along Lake Balaton you genuinely cannot go badly wrong with any of them.
Yettel is the standout on speed: in the National Media and Infocommunications Authority testing it posted a Speed Score more than double either rival, with average 5G downloads near 280 Mbps, and it advertises 4G reaching over 99 percent of the population. It also switches 5G on for every customer at no extra charge, which is why so many travel eSIMs ride it. Magyar Telekom runs one of the most dependable 4G networks in the country with 5G live across Budapest and the major cities, and it is the carrier that built out 5G inside the metro. One covers roughly 98 percent of the population and is perfectly solid nationwide, though it trails on raw speed. For a traveler the practical read is simple: all three handle maps, translation, and video calls without a hitch in the places you will actually go, so the eSIM you pick matters more for price and unlimited data than for whether you get signal.
Signal deep in the Budapest metro
All four metro lines, the historic M1 yellow line plus M2, M3, and M4, carry mobile data underground, not just on the platforms but through the running tunnels. Magyar Telekom completed a 5G rollout across the network through 2024, switching it on line by line from the M2 in mid-August to the M3 in November, so a travel eSIM keeps working as the train moves between stations. That lets you navigate, message, and stream the whole ride, which is unusual for a European metro this old.
Coverage Across Hungary
Coverage where travelers actually go:
| Area | Coverage | Notes |
|---|---|---|
| Budapest (Buda & Pest) | Excellent | Fast 4G and 5G across both banks of the Danube, from the Castle District and the thermal baths to the Pest ring roads, on all three networks. |
| Budapest metro & HEV | Excellent | Continuous signal in every metro station and tunnel on lines M1 to M4, and along the HEV suburban rail out toward Szentendre. |
| Lake Balaton | Very good | Strong 4G along the resort shore around Balatonfured and Siofok, with 5G in the larger towns and busy summer coverage on all three carriers. |
| Danube Bend | Very good | Reliable data in Szentendre, Visegrad, and Esztergom and on the trains and buses between them; a few weak patches on the forested castle climbs. |
| Eger & northern wine country | Very good | Good coverage in Eger town and the basilica quarter; thinner up in the Bukk hills and along the back lanes of the Valley of the Beautiful Women. |
| Great Plain & rural puszta | Good | Even 4G on the main roads and in market towns like Debrecen and Kecskemet, with occasional gaps out on the open grassland farms. |
How to Choose the Right Plan
Start with the shape of your trip. For a Hungary-only visit, pick Airalo if you want the fastest network (Yettel) with the reassurance of a big brand, or Nomad if you want the cheapest data per gigabyte and are happy on the same Yettel and One footprint. Choose Holafly if you stream, want one plan you never have to top up, or simply do not want to think about a cap, keeping in mind its hotspot is limited. Then check your borders: because Hungary sits in the EU roaming zone, if Budapest is one stop on a loop through Vienna, Bratislava, or the Croatian coast, skip the country plan and buy a Europe regional plan from Airalo or Holafly so a single eSIM follows you across every border. Finally, size your data: 3 to 7 GB covers a typical week in Budapest given how much WiFi is around, while heavy streamers and hotspot sharers are happier on unlimited.
Frequently Asked Questions
Does a Europe regional eSIM cover Hungary with no extra roaming fee?
Yes, and this is the key point that makes Hungary different from a long-haul destination. Hungary is an EU member, so a Europe-wide plan from Airalo, Holafly, or Nomad works here on the same profile you use in Austria, Slovakia, Croatia, or Italy, with no surcharge under the Roam Like at Home framework. For a multi-country trip that beats buying a separate plan in each stop. If Hungary is your only destination, a country-specific plan usually costs a little less per gigabyte, but the regional option wins the moment you cross a border.
Which Hungarian network should my eSIM use for the fastest data?
Yettel, comfortably. In the national regulator's 2025 measurements Yettel topped the field with a Speed Score more than double Magyar Telekom's, and its average 5G download speeds ran close to 280 Mbps. Airalo's Hungary eSIM rides Yettel, and Holafly and Nomad use Yettel alongside One. In everyday use any of the three networks easily handles maps, the BudapestGO transit app, translation, and video calls, so unless you move very large files the difference is more about headroom than whether things work.
Will my eSIM keep working in the Budapest metro tunnels?
Yes. All four Budapest metro lines carry mobile data in the stations and through the tunnels between them, so an eSIM on any of the main networks stays connected as the train moves. Magyar Telekom finished switching on 5G across the network through 2024, line by line. That means you can navigate between Deak Ferenc ter, Kalvin ter, and the Castle without losing signal, and you never need to hunt for station WiFi to check where to change lines.
How much mobile data do I need for a week in Budapest?
Most visitors use around 3 to 7 GB over a week for maps, the BudapestGO app, restaurant and bath bookings, messaging, and social media, since hotels, cafes, and many ruin bars offer WiFi. If you stream on the train to Lake Balaton, make frequent video calls, or share a hotspot with a travel partner, plan for 10 GB or step up to an unlimited Holafly plan so you never ration. The eSIM Finder can size it to your exact itinerary.
Can one eSIM cover Hungary plus Vienna, Slovakia, or Croatia?
Yes, and this is where a regional plan shines. Because Hungary and its neighbors sit inside the EU roaming zone, a single Europe-wide eSIM from Airalo or Holafly follows you from Budapest to Vienna, across to Bratislava, or south to the Croatian coast on one profile with no border swaps. That suits the classic Central Europe rail loop. For a Hungary-only stay a single-country plan is the cheaper choice per gigabyte.