The 60-second verdict
Flysimio sells fixed-data Montenegro plans on m:tel and Crnogorski Telekom. Airalo's cheapest 30-day Montenegro plan is $89.00 and Holafly's is $106.50 — one of the largest gaps in our whole catalogue — because both sell the country as unlimited-only. Nomad sells fixed data at $12.00 for 5 GB / 30 days; we came in below that in October 2026.
A note on timing, since we would rather be useful than sell you something at the wrong moment: Montenegro is a summer destination and its search demand peaks in July and August. If you are reading this in autumn, September and early October are arguably the best time to go — the Adriatic is still warm, the coast is far quieter, and prices drop sharply.
Flysimio Montenegro eSIM
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Flysimio Montenegro eSIM plans
For a one- to two-week trip, the 5 GB / 30-day plan at $9.00 covers maps, messaging and social for Montenegro. Every plan includes hotspot. Full live range (prices update hourly):
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1 GBBuy$2.38 | 7 days | $2.38 | $2.38/GB |
| 2 GBBuy$4.08 | 15 days | $4.08 | $2.04/GB |
| 3 GBBuy$5.75 | 15 days | $5.75 | $1.92/GB |
| 5 GBOur pickBuy$9.00 | 30 days | $9.00 | $1.80/GB |
| 10 GBBuy$16.50 | 30 days | $16.50 | $1.65/GB |
| 20 GBBuy$31.50 | 30 days | $31.50 | $1.57/GB |
Every plan: instant QR delivery, no physical SIM, and a 7-day money-back guarantee.
The Croatia-to-Montenegro roaming trap
This is the single most useful thing on this page. Croatia is in the EU; Montenegro is not. If you are on a European SIM using EU roam-like-at-home allowances, they stop the moment you cross at Debeli Brijeg and you revert to non-EU roaming rates, which are typically many times higher. The same applies coming from Bosnia or Albania on an EU plan. A local eSIM sidesteps it entirely.
Montenegro's networks
Three operators serve the country: Crnogorski Telekom, m:tel and One (formerly Telenor). Coverage along the coast and the main inland roads is good — Montenegro is small, and the tourist corridor is well served. Flysimio routes through m:tel.
Coverage by destination
- Kotor and the Bay — good throughout the old town and around the bay road. The climb to the fortress above Kotor holds signal most of the way.
- Budva, Tivat and Sveti Stefan — strong.
- Podgorica — strong, including the airport.
- Durmitor and Žabljak — usable in Žabljak town, patchy on the hiking trails and around Black Lake.
- Tara Canyon — real gaps, especially down at river level for rafting.
- Lovćen and the serpentine road above Kotor — intermittent. Worth downloading the map before you drive it.
How much data do you need?
Montenegro is compact and Wi-Fi is common in coastal accommodation, so a week runs 2–3 GB for most travellers. Buy 5 GB at $9.00 for a fortnight and you are covered.
Setting it up
- Buy and install on Wi-Fi before you travel.
- If you are driving in from Croatia, switch the Montenegro line on before you cross the border — not after.
- Enable Data Roaming for the travel line only, and turn it off on your home line.
- Download offline maps for the Lovćen road and Durmitor.
- Montenegro uses the euro despite not being in the EU.
Frequently asked questions
What is the best eSIM for Montenegro?
Flysimio on m:tel and Crnogorski Telekom — we came in below Nomad's $12.00 for 5 GB / 30 days in October 2026, against $89.00 for Airalo's cheapest 30-day Montenegro plan and $106.50 for Holafly's, both unlimited-only. That is one of the widest price gaps in our catalogue.
Does EU roaming work in Montenegro?
No. Montenegro is not in the EU, so roam-like-at-home allowances from an EU SIM do not apply and you revert to non-EU roaming rates. This catches out a lot of people driving down from Croatia. A local eSIM avoids it.
Does Montenegro use the euro?
Yes, Montenegro uses the euro unilaterally despite not being an EU member. That is why the currency feels familiar while your roaming allowance suddenly does not apply.
Is there coverage in Durmitor National Park?
In Žabljak town, yes. On the hiking trails, around Black Lake and down in the Tara Canyon it becomes patchy to non-existent, so download offline maps before you set out — particularly for rafting days.
When is the best time to visit Montenegro?
July and August are peak but crowded and expensive. September and early October are arguably better — the Adriatic is still warm, the coast is much quieter and prices fall. Winter is quiet on the coast, with skiing inland at Kolašin and Žabljak.
Flysimio Montenegro eSIM
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Sources & further reading
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.