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Home›Destinations›Antigua and Barbuda
Destination Guide · Americas

Best eSIM for Antigua and Barbuda

HelloRoam offers unlimited daily eSIM data for Antigua and Barbuda on the FLOW network from $17.28 per day, with 30-day plans at $14.76/day. A 7-day eSIM starts from $10.98. Antigua is the Caribbean's sailing capital, home to English Harbour's Nelson's Dockyard and 365 beaches. FLOW is the primary carrier covering both islands. Prices verified May 2026.

eR
eSIMRated Editorial TeamPrices verified 2026-05-305 plans comparedAntigua and Barbuda flag AG
Cheapest from
$7.47/ GB
Networks
FLOW
Plans available
5
5 GB from
$40.80
★ Editor's ChoiceBest value for Antigua and Barbuda, 2026
HelloRoam
HelloRoam
FLOW · 5 plans compared

Competitive pricing on FLOW in Antigua and Barbuda. 5 GB plans from $40.80.

From
$10.98
1 GB / 7 days
Get HelloRoam eSIM
JOBy James OkaforAmericas & Africa Correspondent· Mobile technology writer focused on emerging markets. Covers the Americas and Africa for eSIMRated, tracking prepaid data pricing and where eSIM coverage actually reaches beyond the major cities.|Updated May 29, 2026|Last verified May 29, 2026
On this page
  • Plan comparison
  • Our picks
  • Network coverage
  • Coverage analysis
  • Activation
  • Data usage tips
  • How we evaluated plans for Antigua and Barbuda
  • All Antigua and Barbuda eSIM plans
  • FAQ
  • Provider reviews
Key takeaway
HelloRoam offers unlimited daily eSIM data for Antigua and Barbuda on the FLOW network from $17.28 per day, with 30-day plans at $14.76/day. A 7-day eSIM starts from $10.98. Antigua is the Caribbean's sailing capital, home to English Harbour's Nelson's Dockyard and 365 beaches. FLOW is the primary carrier covering both islands. Prices verified May 2026.

All Antigua and Barbuda eSIM plans compared

eSIM provider comparison for Antigua and Barbuda — Prices verified 2026-05-30
ProviderPrice (5GB)CoverageRatingBest For
HelloRoam$40.80FLOW4.9/5Best overall
Airalo$16.00200+ countries4.5/5Most destinations
HolaflyUnlimited160 countries4.2/5Heavy users

Our top 3 picks for Antigua and Barbuda

We evaluated 5 eSIM plans available for Antigua and Barbuda, comparing them on verified pricing, network coverage, activation speed, and app quality. Five stood out.

HelloRoam
HelloRoam
Best Value
$40.80
5 GB / 30 days

Pros: Lowest price per GB, fast activation, Antigua and Barbuda coverage on FLOW. Cons: Newer brand, smaller community than Airalo.

Get HelloRoamFull review
HelloRoam Unlimited Daily Data Discount TiersUnlimited daily data
TierDurationDiscountStarting price
Short Stay1-2 days4% off$6.43$3.22/day · 2d
Week Package3-9 days8% off$21.57$3.08/day · 7d
Extended Stay10-19 days11% off$29.82$2.98/day · 10d
Monthly Package20-29 days15% off$56.95$2.85/day · 20d
Long TermBest Value30-365 days18% off$82.41$2.75/day · 30d
Based on base rate of $3.35/day. Longer stays save more.
Airalo
Airalo
Most Popular
$16.00
5 GB / 30 days

Pros: 200+ countries, top-up available, largest community. Cons: Priced above newer competitors on some routes, support response times can vary.

Get AiraloFull review
Holafly
Holafly
Best Unlimited
$19.00
Unlimited / 5 days

Pros: Truly unlimited data, full-speed on most plans, live chat support 24/7. Cons: Premium pricing, no per-GB options available.

Get HolaflyFull review

Quick Facts

Antigua and Barbuda eSIM unlimited plans on FLOW start at $17.28/day, with a 7-day plan from $10.98, verified May 2026.(source)
FLOW provides 4G LTE across all of Antigua including English Harbour, Dickenson Bay, and V.C. Bird International Airport.(source)
Barbuda receives FLOW 3G/4G near Codrington village; remote northern beaches are off-network.(source)
HelloRoam offers 5 unlimited Antigua and Barbuda eSIM plans from 1 to 30 days on FLOW, updated May 2026.(source)

Network coverage in Antigua and Barbuda

FLOW (formerly Cable & Wireless) is the leading mobile operator in Antigua and Barbuda, providing 4G LTE across Antigua and 3G on Barbuda. FLOW covers English Harbour, Dickenson Bay, Jolly Beach, and all main resort zones. A secondary carrier, Digicel, also operates in Antigua, but FLOW is the dominant option for eSIM plans available to international visitors.

Coverage analysis

FLOW 4G covers the entire main island of Antigua including St. John's, English Harbour, Dickenson Bay, Jolly Harbour, Jolly Beach, and Half Moon Bay. V.C.

Bird International Airport has 4G in both terminals. Barbuda receives 3G/4G near Codrington and the main beach landing zones. Remote northern beaches on Barbuda are off-network.

Sailing in Falmouth Harbour and English Harbour maintains 4G for weather apps and race tracking during Sailing Week.

Activation

Install the HelloRoam eSIM QR code before your flight to V.C. Bird International Airport. FLOW activates automatically in the arrivals hall.

No SIM card purchase, no registration counter. Your device must be carrier-unlocked. iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM. Activation completes in under 2 minutes after landing.

Data usage tips

Budget 400-600 MB per day for beach bar and restaurant lookups, Google Maps for island navigation, and daily photo uploads from Antigua's beaches. Sailing Week attendees tracking race results, weather GRIB files, and marine VHF apps use 800 MB-1 GB per day. Barbuda day trips: download offline maps before boarding the ferry, as signal near the frigate bird sanctuary drops significantly.

Video calls home from English Harbour use 400-600 MB per hour.

How we evaluated plans for Antigua and Barbuda

Antigua and Barbuda eSIM prices reflect small Caribbean island infrastructure costs. The 1-day unlimited plan starts at $17.28. The 7-day plan at $115.92 covers a standard sail and beach holiday.

A data-limited 7-day plan from $10.98 suits lighter usage. The 14-day plan runs $224.28 and the 30-day plan at $442.80 ($14.76/day) is the best rate with an 18% discount. For Sailing Week visitors, a 7-day unlimited plan is the practical choice.

Best eSIM plans for Antigua and Barbuda in 2026

Antigua and Barbuda Unlimited 1Day
FLOW (4G)1 validityNo top-up
$17.28
0 GB · 1 validity
Per GB$17.28
TetheringYes
NetworkFLOW
Antigua and Barbuda Unlimited 3Days
FLOW (4G)3 validityNo top-up
$49.68
0 GB · 3 validity
Per GB$49.68
TetheringYes
NetworkFLOW
Antigua and Barbuda Unlimited 7Days
FLOW (4G)7 validityNo top-up
$115.92
0 GB · 7 validity
Per GB$115.92
TetheringYes
NetworkFLOW
Antigua and Barbuda Unlimited 14Days
FLOW (4G)14 validityNo top-up
$224.28
0 GB · 14 validity
Per GB$224.28
TetheringYes
NetworkFLOW
Antigua and Barbuda Unlimited 30Days
FLOW (4G)30 validityNo top-up
$442.80
0 GB · 30 validity
Per GB$442.80
TetheringYes
NetworkFLOW
All eSIM plans for Antigua and Barbuda — Prices verified 2026-05-30
PlanNetworkValidityPrice
Antigua and Barbuda Unlimited 1Day ⭐FLOW1d / 0GB$17.28
Antigua and Barbuda Unlimited 3DaysFLOW3d / 0GB$49.68
Antigua and Barbuda Unlimited 7DaysFLOW7d / 0GB$115.92
Antigua and Barbuda Unlimited 14DaysFLOW14d / 0GB$224.28
Antigua and Barbuda Unlimited 30DaysFLOW30d / 0GB$442.80

Prices verified: May 2026

Questions about Antigua and Barbuda eSIMs

What is the best eSIM for Antigua?+
For a 7-day Caribbean holiday, the data-limited 7-day plan from $10.98 covers beach navigation, restaurant lookups, and photo uploads. Sailing Week visitors and remote workers need the 7-day unlimited plan at $115.92 on FLOW for weather apps, race tracking, and reliable video calls.
How much does an eSIM for Antigua cost?+
Antigua and Barbuda eSIM plans start from $10.98 for a 7-day data plan on FLOW. Unlimited daily plans start at $17.28/day. A 7-day unlimited plan costs $115.92, a 14-day plan is $224.28, and a 30-day plan costs $442.80. Longer plans deliver 8-18% discounts versus the single-day rate.
Does eSIM cover Barbuda as well as Antigua?+
Yes, FLOW covers Barbuda with 3G/4G near Codrington village and main beach areas. The remote Pink Sand Beach (Princess Diana Beach) and northern Barbuda are off-network. Download offline maps for Barbuda before boarding the 30-minute ferry from St. John's Harbour.
Is there good eSIM coverage at English Harbour?+
Yes. English Harbour and the adjacent Falmouth Harbour are fully covered on FLOW 4G. Nelson's Dockyard, the marina, and surrounding restaurants all have consistent signal. Sailing Week race tracking apps, weather apps, and chart plotter connections all work reliably in the harbour area.
How do I activate an eSIM at V.C. Bird Airport?+
Install the HelloRoam QR code before departure. FLOW activates at V.C. Bird International Airport automatically — you're connected before clearing customs. No SIM vendor queue needed. The airport SIM counters on the arrivals level typically take 10-20 minutes during busy flight days.
Which network does an Antigua eSIM use?+
Antigua and Barbuda eSIM plans run on FLOW, the island's primary carrier. FLOW provides 4G LTE across Antigua and 3G on Barbuda. FLOW covers all major resort areas, English Harbour, and St. John's city center.
Is unlimited data available on an Antigua eSIM?+
Yes. HelloRoam's unlimited plans for Antigua and Barbuda start at $17.28/day on FLOW. Plans are available for 1, 3, 7, 14, and 30 days with no hard daily data cap.
Does my phone support eSIM in Antigua?+
iPhone XS or newer, Pixel 3a or newer, and Galaxy S20 or newer all support eSIM in Antigua and Barbuda. Your phone must be carrier-unlocked. Contract phones from US or UK carriers may be SIM-locked — verify before travel.

Provider reviews

Read our in-depth reviews of the top eSIM providers available in Antigua and Barbuda.

HelloRoam
★4.9/ 5
Read full review →
Airalo
★4.5/ 5
Read full review →
Holafly
★4.2/ 5
Read full review →
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