Savings Calculator
Calculate Your eSIM Savings for Montserrat (2026)
A 10-day trip to Montserrat costs $100 in AT&T roaming. A 20GB eSIM costs $164.45 on FLOW's network. You save $-64.45 (-64%). Enter your trip length below to calculate your savings.
Your carrier's roaming rate in Montserrat
| Carrier | Plan | Daily Rate | 7-Day Cost |
|---|---|---|---|
| AT&T | International Day Pass | $10/day | $70 |
| Verizon | TravelPass | $10/day | $70 |
| T-Mobile | Magenta (high-speed add-on) | $15/day | $105 |
| Xfinity Mobile | International Pass | $10/day | $70 |
AT&T International Day Pass
AT&T routes through FLOW in Montserrat at $10/day — the same network a $7.47/GB eSIM uses.
Verizon TravelPass
One week of Verizon roaming in Montserrat costs $70 ($10/day through FLOW). An eSIM on FLOW starts at $7.47/GB for the same connection.
T-Mobile Magenta (high-speed add-on)
T-Mobile's International Day Pass in Montserrat runs on FLOW at $15/day. A travel eSIM delivers identical coverage from $7.47/GB.
Xfinity Mobile International Pass
Xfinity Mobile's International Day Pass in Montserrat runs on FLOW at $10/day. A travel eSIM delivers identical coverage from $7.47/GB.
eSIM alternative cost for Montserrat
Plan tiers for Montserrat
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $10.98 | $10.98 |
| 3GB | $26.10 | $8.70 |
| 5GB | $40.80 | $8.16 |
| 10GB | $74.66 | $7.47 |
| 20GBBest fit | $164.45 | $8.22 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $17.28 | $17.28 | 4% |
| 3 days | $49.68 | $16.56 | 8% |
| 7 days | $115.92 | $16.56 | 8% |
| 14 days | $224.28 | $16.02 | 11% |
| 30 days | $442.80 | $14.76 | 18% |
Which provider covers Montserrat
The primary provider for Montserrat is Airalo, connecting to FLOW's 4G LTE network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $40.80 | $-10.80 (-36%) |
| 7 days | $70 | $70 | $105 | $164.45 | $-94.45 (-135%) |
| 14 days | $140 | $140 | $210 | $164.45 | $-24.45 (-17%) |
| 21 days | $210 | $210 | $315 | $164.45 | $45.55 (22%) |
| 30 days | $300 | $300 | $450 | $164.45 | $135.55 (45%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $164.45
Save $-64.45
Couple
Carrier: $200
eSIM: $328.90
Save $-128.90
Family of 4
Carrier: $400
eSIM: $657.80
Save $-257.80
Trip length calculator
How much data you need
Maps & navigation
50 MB/hr
Social media
80 MB/hr
Video calls
250 MB/hr
Photo uploads
10 MB/photo
Music streaming
70 MB/hr
Web browsing
60 MB/hr
Real savings scenarios for Montserrat
Solo traveler
Verizon TravelPass for 10 days in Montserrat: $100. That is $10 per calendar day, triggered by any network contact, including a background email sync at midnight. A 20GB eSIM on FLOW costs $164.45 and does not bill per day. Savings: $0 (0%). Same 4G LTE network.
Family trip
A family of four on AT&T visiting Montserrat for 10 days: 4 lines x $10/day x 10 days = $400. Four individual 20GB eSIMs on FLOW: $657.80. Family savings: $-257.80. Alternative: two eSIMs with tethering for two devices each costs $328.90 total. That cuts the family data bill to 82% of AT&T roaming.
Business trip
Verizon TravelPass for a 5-day business trip to Montserrat: $10/day x 5 = $50 per traveler. TravelPass shares data with your domestic plan cap. A business traveler who already used 8 GB of a 15 GB plan before departure has only 7 GB left for the 5-day trip. A 20GB eSIM at $164.45 provides a separate data bucket that does not affect your home plan. Savings: $0 per person.
Long-stay and digital nomads
Digital nomads spending 30 days in Montserrat on AT&T roaming: $10/day x 30 = $300. Verizon: $300. T-Mobile high-speed: $450. An unlimited daily eSIM at $18/day for 30 days: $540. For 30-day stays, purchasing two eSIM plans or one unlimited plan costs less than a single week of carrier roaming.
Frequent traveler annual savings
If Montserrat is one stop on a multi-destination travel year: AT&T charges $10/day in every country. eSIM prices vary by destination. For Montserrat alone: $100 (AT&T) vs $164.45 (eSIM) per 10-day trip. Across 4 international trips averaging 10 days each, AT&T charges $400 in roaming alone. eSIMs for the same itineraries run 80-95% less per trip.
Extended stay economics
Digital nomads spending a month in Montserrat face the steepest roaming bills. AT&T: $10/day x 30 = $300. T-Mobile high-speed: $450. A 20GB eSIM on FLOW: $448.20. Monthly savings vs AT&T: $-148.20 (-49%). At 2 GB/day of working data (video calls, file uploads, cloud sync), the eSIM handles 60 GB over a month. AT&T's Day Pass uses your domestic data cap for the same 60 GB and still bills $300 on top. Montserrat also has unlimited daily eSIM plans at $18/day, which totals $540 for 30 days of unrestricted data.
Frequent flyer savings
Most frequent travelers visit multiple countries, not just Montserrat. If AT&T charges $10/day in every destination and the average trip is 10 days, 4 trips cost $400/year in roaming alone. At an average eSIM cost of $164.45 per trip, the annual total drops to $657.80. That $-257.80/year buys a round-trip flight in many markets.
Data usage savings
A traveler using Google Maps 3 hours/day in Montserrat consumes 24 MB/day in navigation data. Over 10 days: 240 MB (0.2 GB). AT&T charges $10/day regardless of how little data you use. An eSIM at $7.47/GB on FLOW charges $1.79 for navigation alone. The eSIM's per-activity cost is a fraction of the per-day fee.
Couples trip savings
The lowest-cost option for couples in Montserrat: one 20GB eSIM at $164.45, shared via hotspot. The second phone connects through the first phone's WiFi hotspot. Total cost: $164.45 for both devices over 10 days. Compare: AT&T charges $200 for two lines ($10/day each). Savings: $35.55. Trade-off: the second phone needs to stay within WiFi hotspot range of the first.
UK carrier comparison
Vodafone and EE apply fair-use data caps to roaming in Montserrat. Once the cap is reached, speed drops to near-2G levels while the GBP6/day charge continues. The fair-use threshold is not published prominently. A 20GB eSIM at $164.45 has a stated data ceiling with no hidden throttle. You know exactly how much data you get and the speed does not degrade until the plan is fully consumed.
Our verdict
Against AT&T: $0 saved (0%). Against Verizon: $0 saved. Against T-Mobile high-speed: $0 saved. Against T-Mobile free tier: $0 carrier cost but 256 Kbps speed renders maps, ride-hailing, and video calls unusable. A 20GB eSIM at $164.45 delivers full 4G LTE on FLOW for less than any paid roaming option.
How much can I save with eSIM in Montserrat?
eSIM savings in Montserrat for a 10-day trip: $0 vs AT&T ($10/day), $0 vs Verizon ($10/day), $0 vs T-Mobile high-speed ($15/day). eSIM price: $164.45 on FLOW. Verified May 2026.
How much does roaming cost in Montserrat?
US carriers charge $10/day for Montserrat roaming. UK carriers charge approximately GBP6/day. A 10-day trip costs $100 on AT&T or Verizon. A travel eSIM on FLOW costs $164.45 for 20GB. Verified May 2026.
Montserrat network context
Local networks
Montserrat has 1 mobile network. The primary carriers are FLOW, Digicel.
Connectivity notes
- Half the island is an exclusion zone around volcano
Good to know
One operator, FLOW, runs all mobile coverage in Montserrat. Carrier roaming and eSIM plans use the same infrastructure — comparing costs is the only meaningful variable.
Quick tip
Montserrat uses XCD (EC$). eSIM plans charge in USD at the time of purchase — you lock in the cost before travel and avoid in-country exchange rate moves.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Montserrat?
- AT&T International Day Pass charges $10/day in Montserrat. A 10-day trip costs $100 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Montserrat?
- Verizon TravelPass charges $10/day in Montserrat. A 10-day trip costs $100. A 20GB eSIM covers the same trip for $164.45 on the same local network — saving you -64%.
- How much data do I need for a week in Montserrat?
- Most travelers use 1-2 GB per day for maps, messaging, social media, and light browsing. A 7-day trip needs 7-14 GB. Video calls and streaming push usage to 3+ GB per day. Choose a 10GB or 20GB plan for heavy use.
- Can a family share one eSIM in Montserrat?
- One eSIM stays in one phone, but most eSIM plans allow tethering (personal hotspot). A family of 4 can share a single 10-20GB eSIM through one phone's hotspot instead of paying $10/day per person for carrier roaming.
- Does T-Mobile free data work in Montserrat?
- T-Mobile Magenta includes free data in Montserrat, but speed is capped at 256 Kbps. That is too slow for Google Maps, video calls, or uploading photos. The high-speed add-on costs $15/day.
- How much does a 30-day eSIM cost for Montserrat?
- A 30-day eSIM for Montserrat depends on data volume. Metered plans (5-20GB) typically range from $8 to $35. Unlimited daily plans run $1-2/day. Both connect to the same local network as carrier roaming at a fraction of the cost.
- How much does carrier roaming cost in Montserrat?
- For a 14-day trip: AT&T roaming costs $140 ($10/day x 14). Verizon: $140. T-Mobile high-speed: $210. A travel eSIM on FLOW for the same 14 days starts at $10.98 for 1GB — plans are priced per GB or as a fixed data bucket, not per day, so the cost stays flat.
- Is T-Mobile's free international data fast enough in Montserrat?
- No. T-Mobile's free international data is throttled to 256 Kbps in Montserrat. To get usable speed, you pay $15/day — the same as AT&T and Verizon. For a 7-day trip that is $105 from T-Mobile, $70 from AT&T. A travel eSIM on FLOW at $7.47/GB for a typical 7-day trip at 1.5 GB/day costs $78.44. Difference: $26.57.
- How is my roaming bill calculated in Montserrat?
- AT&T bills $10 per calendar day your phone touches a Montserrat tower. Verizon matches that rate. Without a pass, each megabyte costs $2.05 — making 1 GB of accidental usage cost $2,099. T-Mobile includes free data at unusable 256 Kbps speeds. A travel eSIM sidesteps all three billing models: pay 1GB for $10.98 once, use it until the data runs out, and face zero overage risk.
- How good is rural coverage on a travel eSIM in Montserrat?
- Rural coverage in Montserrat depends on FLOW's tower density outside major cities. A travel eSIM connects to the same towers as AT&T roaming at $10/day — coverage quality is identical because both use the same local network. Urban centers in Montserrat have solid 4G LTE coverage; remote areas and national parks may drop to slower speeds or lose signal entirely. Before rural travel, download offline maps (Google Maps, Maps.me) over WiFi to reduce cellular dependency. Neither carrier roaming nor an eSIM at $7.47/GB changes the underlying tower infrastructure. Rates checked June 2026.
- Will I get a surprise roaming bill from Montserrat?
- Only if data roaming is still enabled when you land. AT&T pay-per-use rates hit $2.05/MB in Montserrat — a background app sync can rack up charges before you open your phone. Even with a day pass at $10/day, a two-week trip costs $140. An eSIM at $7.47/GB eliminates bill shock — you pay a fixed amount upfront and cannot be charged more regardless of background data activity.