Roaming Charges in Saint Barthelemy: Full Cost Guide for 2026
Roaming in Saint Barthelemy costs $12/day on AT&T and Verizon, $10/day on T-Mobile's upgraded pass, and GBP5-7/day on UK carriers. A travel eSIM covers a full week for $$5.70.
All 6 carriers compared · Updated May 2026 · By The Roaming Cost Desk
What roaming costs in Saint Barthelemy
Daily rate, 7-day and 14-day cost across all 6 tracked carriers.
| Carrier | Daily | 7-day | 14-day | Data | Verdict |
|---|---|---|---|---|---|
AT&T International Day Pass | $12.00 | $84.00 | $168.00 | 2GB high-speed/day | Expensive |
T-Mobile Magenta (free 2G) | $0.00 | $0.00 | $0.00 | Unlimited at 128kbps | Free but slow |
T-Mobile International Pass | $10.00 | $70.00 | $140.00 | 2GB high-speed/day | Costly |
Verizon TravelPass | $12.00 | $84.00 | $168.00 | 5GB high-speed/day | Expensive |
Vodafone UK Roam Further | £6.85 | £47.95 | £95.90 | Varies by plan | Expensive |
EE Roam Further | £5.91 | £41.37 | £82.74 | Plan allowance | Expensive |
Three UK Not Covered | N/A | N/A | N/A | No service | No coverage |
Prices verified May 28, 2026. US rates in USD, UK rates in GBP.
AT&T rates in Saint Barthelemy
International Day Pass details, billing cap, and hidden fees.
Day Pass Daily Breakdown
AT&T International Day Pass connects your phone to Orange, Dauphin Telecom in Saint Barthelemy. You pay $12 every day your device touches the network. Background app syncs, iMessage fallbacks, and incoming MMS all trigger the full daily charge. There is no partial-day billing.
Monthly Billing Cap
AT&T caps Day Pass charges at $120 per billing cycle (10 days of use). After the cap, roaming is included for the rest of the month. A travel eSIM for Saint Barthelemy costs $5.70 total, which is 90%+ less than hitting the cap.
T-Mobile rates in Saint Barthelemy
Free 2G tier, Go5G Plus, and International Pass.
Free 2G Tier Reality
T-Mobile Magenta includes free roaming in Saint Barthelemy at 128 kbps. That is 2G speed. Maps load in 30+ seconds. Photos will not send. Video is completely unusable. A travel eSIM runs at full LTE speed on the same networks.
Go5G Plus High-Speed Included
Go5G Plus customers get 5GB of free high-speed data per month while roaming in Saint Barthelemy. After 5GB, speeds drop to 256 kbps. This is the best carrier roaming deal among all six carriers tracked here, but it requires T-Mobile's most expensive domestic plan.
International Pass $10/Day Option
T-Mobile raised the International Pass from $5/day to $10/day in 2026. It unlocks LTE speeds on Orange, Dauphin Telecom. A 7-day trip costs $70 with the pass. A travel eSIM costs $5.70 for the same week.
Verizon rates in Saint Barthelemy
TravelPass, auto-enrollment, and data top-ups.
TravelPass Daily Cost
Verizon TravelPass costs $12/day in Saint Barthelemy. You get 5GB of high-speed data per day. After 5GB, speeds drop to 3G. Charged any day you use service, including one background app sync.
Auto-Enrollment Warning
Verizon auto-enrolls TravelPass on many postpaid lines. Your phone starts incurring charges the moment it connects to a network in Saint Barthelemy. Opt out through the My Verizon app before you depart. Missing this step is the most common source of unexpected roaming bills.
Data Top-Up Costs
After 5GB in a day, Verizon throttles to 3G. There is no option to buy additional high-speed data for that day. Heavy data users hit this cap quickly when streaming maps, uploading photos, or video calling.
Monthly International Plan
Verizon offers a $100/month Monthly International Plan with 20GB of data. For trips longer than 8 days, this beats TravelPass on cost. A travel eSIM still costs $5.70 for the same period.
Vodafone UK rates in Saint Barthelemy
EU Zone pricing, fair usage cap, and worldwide rates.
Zone Classification for Saint Barthelemy
Saint Barthelemy falls under Vodafone's Roam Further worldwide pricing at GBP6.85/day. Data allowances vary by plan. This adds up to GBP47.95 for a 7-day trip.
Fair Usage Cap
Vodafone's Roam Further data allowance depends on your domestic plan. Higher-tier plans include more roaming data. Check your specific plan details before traveling to Saint Barthelemy.
EE rates in Saint Barthelemy
Roam Abroad vs Roam Further, calendar-day billing.
Calendar Day Billing Quirk
EE bills roaming by calendar day (midnight to midnight), not by 24-hour period. A late-night arrival in Saint Barthelemy followed by next-morning usage triggers two full days of charges. Land early or wait until the next calendar day to enable data.
Plan-Dependent Inclusions
EE Roam Further charges GBP5.91/day for worldwide destinations including Saint Barthelemy. Data allowances depend on your domestic plan tier. A 7-day trip costs GBP41.37 in roaming fees alone.
Three UK rates in Saint Barthelemy
Coverage check and alternatives.
Country Coverage Check
Saint Barthelemy is not in Three's 71-country Go Roam coverage list. Three UK customers cannot use their plan in Saint Barthelemy at any price. The phone will show no service. A travel eSIM is the only option for Three customers traveling to Saint Barthelemy.
How much does roaming cost in Saint Barthelemy?
Direct answer optimized for search and AI citation.
Roaming in Saint Barthelemy costs $12.00 to $12.00 per day on US carriers, adding $84.00-$84.00 to a 7-day trip.
A travel eSIM for Saint Barthelemy starts at $5.70 total, covering the entire trip at local network speeds with no daily charges.
Complete cost ranking for Saint Barthelemy
Every option from cheapest to most expensive.
Cheapest to most expensive for a 7-day trip to Saint Barthelemy: travel eSIM at $5.70 (1GB), T-Mobile speed upgrade at $70.00, AT&T Day Pass at $84.00, Verizon TravelPass at $84.00.
The eSIM is the only option with a fixed upfront cost and no daily billing surprises.
Data throttling policies by carrier
What happens after you hit the high-speed cap.
AT&T provides 2GB of high-speed data per 24-hour period on International Day Pass. After 2GB, speeds reduce to 128 kbps for the remainder of that period. The 24-hour clock starts when your phone first connects to a foreign network, not at midnight local time. AT&T reduced this cap from 3GB to 2GB in recent plan updates.
T-Mobile Magenta's free international data is permanently capped at 128 kbps. There is no high-speed window. The free data is unlimited in volume but unusable for most modern internet activities. Go5G Plus includes 5GB at full speed, then drops to 256 kbps.
T-Mobile's $10/day International Pass provides 2GB of high-speed data per day. After 2GB, speeds drop to 256 kbps (roughly double the free tier speed). The 2GB counter resets at midnight local time.
Verizon TravelPass provides 5GB of LTE data per day. After 5GB, speeds drop to 3G for the rest of that calendar day. The 5GB counter resets at midnight local time. There is no option to purchase additional high-speed data for that day.
Vodafone applies a 25GB monthly fair use cap on roaming data. Beyond 25GB, Vodafone charges GBP3.13/GB in overage fees rather than throttling speed. This can result in significant unexpected charges for heavy data users.
EE applies a 25GB monthly fair use cap on roaming data. Beyond 25GB, overage charges apply per MB. The cap is shared across all roaming destinations in the same billing period.
Three caps Go Roam data at 12GB per day. After 12GB, data is suspended entirely (not throttled) until the next calendar day. This is the most aggressive cap among all six carriers. Heavy tethering or video streaming can trigger the cap within a few hours.
US carrier roaming analysis for Saint Barthelemy
US carrier roaming in Saint Barthelemy uses standard global rates: AT&T at $12/day, Verizon at $12/day, T-Mobile free at 128 kbps. There are no reduced rates or special zones for Saint Barthelemy.
A travel eSIM at $5.70 provides the same network access at full speed for a fraction of carrier roaming costs. For destinations in the Americas, the eSIM price advantage is typically 80-90% compared to AT&T or Verizon daily pass pricing.
UK carrier roaming rates for Saint Barthelemy
UK carrier roaming costs increase significantly outside the EU. Vodafone Roam Further charges GBP6.85/day in Saint Barthelemy. EE Roam Further charges GBP5.91/day. Three UK does not cover Saint Barthelemy at all.
For worldwide destinations including Saint Barthelemy, UK carrier roaming is more expensive than US carrier roaming. Vodafone at GBP6.85/day (approximately $8.50) exceeds both AT&T and Verizon at $12/day. EE at GBP5.91/day (approximately $7.50) is also more expensive than US carriers. Only Three at GBP2.75/day (approximately $3.50) undercuts US carrier pricing, but only in its 71 covered countries.
A travel eSIM at $5.70 for 1GB on Orange and Dauphin Telecom costs less per day than any UK carrier roaming option for Saint Barthelemy. For UK travelers visiting worldwide destinations, the cost advantage of a travel eSIM is even more pronounced than for EU travel. The eSIM provides full LTE speed with no fair use cap concerns and no daily charge uncertainty.
7-day trip cost across all carriers
A travel eSIM saves up to $78.30 over AT&T on a 7-day trip to Saint Barthelemy.
eSIM: $5.70 total
Cheaper alternatives to carrier roaming
Verified eSIM providers and local options.
Travel eSIM Providers for Saint Barthelemy
- ✓204+ carrier networks worldwide
- ✓180-day refund policy
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- ✓5G where available
- ✓Keep your home number
- ✓Instant QR install
- ✓5G where available
- ✓Keep your home number
- ✓Instant QR install
- ✓5G where available
- ✓Keep your home number
eSIM savings calculator for Saint Barthelemy
Pick your carrier, trip length, and data usage.
| Trip Length | AT&T Cost | Verizon Cost | eSIM Cost | You Save |
|---|---|---|---|---|
| 7 days | $84.00 | $84.00 | $5.70 | $78.30 |
| 14 days | $168.00 | $168.00 | $5.70 | $162.30 |
| 30 days | $360.00 | $360.00 | $5.70 | $354.30 |