The best eSIM for Montserrat depends on how much data you need, but for a typical trip eSIM Ahora offers plans from $7.73, activated by QR code in about 30 seconds with no roaming from your home carrier. A 3 GB, 30-day plan costs $24.24. You connect, with top-ups available and nationwide coverage. Compatible with iPhone XS or newer, Samsung Galaxy S21+ and Google Pixel 3+.
Full-speed data every day; after the daily cap the speed is reduced.
Full speed up to 500 MB/day, then 512 Kbps.
Every eSIM can be installed within 180 days of purchase. Plan validity starts when you first connect.
Your eSIM picks between these networks on its own. If you see bars and nothing loads, you can pick one by hand.
Your Montserrat eSIM runs on one network: FLOW. Other local networks won't carry your data: if you see signal bars and nothing loads, turn off automatic network selection (iPhone: Settings → Cellular → your eSIM → Network Selection; Android: Settings → Network & internet → SIMs → your eSIM) and pick FLOW by hand.
Flow (Cable & Wireless) and Digicel are the main operators in Montserrat, British Overseas Territory. 4G in the safe zone (north — Brades, Salem, Little Bay, Woodlands) since the southern half was destroyed by Soufrière Hills volcano eruptions 1995-2010 (Plymouth, former capital, remains an exclusion zone buried in ash — the 'modern Pompeii'). Montserrat Volcano Observatory has full coverage. The southern exclusion zone may have some coverage but isn't a free-tourism area. No 5G. Type A/B US plugs, 230V/60Hz.
Fly into John A. Osborne (MNI) — small flights from Antigua (ANU, 20 min). Also ferry from Antigua (90 min). Currency Eastern Caribbean dollar (XCD); USD accepted. Dinner 15-30 USD, mid-range hotel 100-200 USD (limited supply). Montserrat is one of the Caribbean's most curious destinations — Plymouth (capital buried in ash, visible only from viewpoints and guided tours), Volcano Observatory (educational), black-sand beaches (Foxes Bay), Centre Hills hiking. Culture is Irish-African (unique in Caribbean — Irish colonial heritage). UK visa-free + many others.