How much does AT&T charge for roaming in Reunion?

AT&T charges $12/day via International Day Pass in Reunion, connecting you to Orange RE and SFR. A 7-day trip costs $84 in roaming fees. That charge applies any day your phone connects — including background syncs. AT&T caps Day Pass charges at $120/month (10 days), so a two-week trip still costs $120 before the cap kicks in.

Is T-Mobile international data free in Reunion?

T-Mobile includes unlimited data in Reunion at no charge, but the speed is capped at 128 kbps — roughly 100x slower than LTE. Maps load slowly. Photos won't send. Video is unusable. A $10/day upgrade gets you LTE speeds on Orange RE and SFR. At that rate, a 7-day trip still costs $70.

How do I avoid roaming charges in Reunion?

Put your phone in airplane mode before takeoff. Buy a travel eSIM for Reunion before you leave and install it via QR code scan. When you land, switch your default data line to the eSIM. Your carrier number still receives calls and texts over Wi-Fi. Most travelers complete the full setup in under 5 minutes.

What is the cheapest way to use my phone in Reunion?

A travel eSIM is the cheapest option. The cheapest verified plan for Reunion is 1GB for $3.67 — about $0.52/day on Orange RE and SFR. That's 80–90% less than AT&T or Verizon per day. For a 7-day trip, the saving over AT&T Day Pass is $80.33. Travel eSIMs are prepaid — you pay a fixed price before your trip with no monthly subscription or recurring charges.

Does my phone plan cover data in Reunion?

Most US plans cover Reunion through a paid daily roaming pass. AT&T charges $12/day. Verizon charges $12/day. T-Mobile includes free 2G data at 128 kbps — usable for text, not for maps or video. None of these compare to a local eSIM running on Orange RE and SFR at full LTE speed for $3.67 total.

How much can I save with an eSIM vs roaming in Reunion?

A 7-day trip with AT&T costs $84 in roaming fees. A travel eSIM for Reunion costs $3.67. That's a saving of $80.33 on a single trip — same data, same networks. The cheapest eSIM runs at $0.52/day versus $12/day for AT&T, an 89% reduction on data cost alone.

Are there hidden fees for international roaming in Reunion?

Yes. AT&T's Day Pass charges you for any day your phone touches the network in Reunion — including background app syncs. One iMessage fallback during a layover triggers the full $12 fee. Verizon auto-enrolls TravelPass unless you opt out in the My Verizon app before departure. T-Mobile's "free" plan is technically free but runs at 2G speeds — practically unusable for maps or browsing.

Is it eSIM, e-SIM, or e SIM?

eSIM, e-SIM, and e SIM all refer to the same technology — an embedded SIM built into your phone. The official industry term is eSIM (embedded SIM), standardized by the GSMA. Whether you search for e-SIM or e SIM, you will find the same digital SIM card technology. No physical card needed.

Reunion · 1networks · Updated May 2026

Reunion Data Roaming Costs: 2026 Carrier Price Breakdown

1 carrier compared · Updated May 2026 · By Roaming Experts

$80+

You save

per 7-day trip to Reunion

AT&T $84.00 · eSIM $3.67

Short Answer:

AT&T charges $12/day for roaming in Reunion. A 7-day trip costs $84.00 in carrier fees.HelloRoam covers that same week for $3.67 total — 1GB on local networks. You save $80.33 with HelloRoam. No contract changes needed. Prices verified May 2026.

The pain

What carriers charge in Reunion

Daily rate, total cost, and what you actually get.

US carrier roaming costs in Reunion, verified May 2026
Carrier	Daily	7-day	14-day	Data	Verdict
AT&T Day Pass	$12.00	$84.00	$168.00	2GB high-speed/day	Expensive
Verizon TravelPass	$12.00	$84.00	$168.00	5GB high-speed/day	Expensive
T-Mobile Magenta	$0.00	$0.00	$0.00	Unlimited at 2G (128kbps)	Free but slow
T-Mobile International Pass	$10.00	$70.00	$140.00	2GB high-speed/day	Costly

Prices verified May 28, 2026. Updated weekly from provider websites.

Unlimited option

Save even more with unlimited data in Reunion

Unlimited daily data. Longer trips unlock bigger discounts.

Unlimited Daily Data for Reunion

Unlimited daily data. Longer stays unlock bigger discounts.

Up to 18% off

Unlimited eSIM pricing tiers vs carrier roaming for Reunion, verified May 2026
Duration	eSIM Total	Per Day	AT&T Cost	You Save
1 day	$3.10	$3.10	$12.00	$8.90(74%)
3 days8% off	$8.91	$2.97	$36.00	$27.09(75%)
7 days8% off	$20.80	$2.97	$84.00	$63.20(75%)
14 days11% off	$40.25	$2.88	$168.00	$127.75(76%)
30 days18% off	$79.46	$2.65	$360.00	$280.54(78%)

Unlimited daily data at full LTE/5G speed. AT&T comparison uses $12/day International Day Pass rate. Prices verified May 2026.

Compare unlimited ReunioneSIMs →

The relief

The eSIM alternative for Reunion

Verified providers. Same data, fraction of the cost.

HelloRoam ranks second overall on our savings-weighted rubric, with 204+ carrier networks across 185+ countries at the lowest verified per-GB rate.

Winner

HelloRoam

Reunion · 1GB · 7 days

$3.67

$0.52 / day

✓204+ carrier networks worldwide
✓180-day refund policy
✓Instant QR install

Get HelloRoam for $3.67

Airalo

Reunion · 10GB · 30 days

$25.00

$0.83 / day

✓Instant QR install
✓5G where available
✓Keep your home number

View Airalo

Holafly

Reunion · Unlimited · 30 days

$57.00

$1.90 / day

✓Instant QR install
✓5G where available
✓Keep your home number

View Holafly

Saily

Reunion · 10GB · 30 days

$18.99

$0.63 / day

✓Instant QR install
✓5G where available
✓Keep your home number

View Saily

Nomad

Reunion · 10GB · 30 days

$15.00

$0.50 / day

✓Instant QR install
✓5G where available
✓Keep your home number

View Nomad

The math

Savings breakdown for Reunion

Carrier cost vs eSIM for different trip lengths.

eSIM vs carrier roaming savings for Reunion, verified May 2026
Trip Length	AT&T Cost	eSIM Cost	You Save
7 days	$84.00	$3.67	$80.33
14 days	$168.00	$3.67	$164.33
30 days	$360.00	$3.67	$356.33

By carrier

Carrier deep-dives for Reunion

AT&T in Reunion

AT&T's International Day Pass connects your phone to Orange RE, SFR. You pay $12 every day your device touches the network in Reunion — background app syncs count. There is no daily cap on the charge.

Activation fee

Data

Unlimited

Networks

Orange RE, SFR

Verdict

Expensive

T-Mobile in Reunion

T-Mobile Magenta includes free roaming in Reunion at 2G speeds. Usable for maps and plain text. Painful for photos, video, or any real browsing. Go5G Plus includes 5GB high-speed free. The $10/day International Pass unlocks LTE.

Base speed

128kbps (2G)

Intl Pass

$10/day for LTE

Networks

Orange RE, SFR

Verdict

Free but slow

Verizon in Reunion

Verizon TravelPass is $12/day on Orange RE, SFR. After 5GB at LTE speed, your connection reduces to 3G. Charged any day you use service in Reunion — even one background app sync. Verizon auto-enrolls TravelPass; opt out in the My Verizon app before you depart.

Speed change at

5GB/day

Auto-enroll

Yes (opt-out)

Networks

Orange RE, SFR

Verdict

Expensive

Reunion network context

AT&T's International Day Pass connects your phone to Orange RE, SFR, Free. You pay $12 every day your device touches the network — background app syncs count. T-Mobile Magenta includes free roaming in Reunion at 128 kbps (2G speeds). a local eSIM runs significantly faster. Verizon TravelPass is $12/day on Orange RE, SFR, Free. High-speed data is capped at 5GB — after that your connection drops to 3G. Verizon auto-enrolls TravelPass; you must opt out in the app before departure.

Bill shock

Real roaming bill scenarios in Reunion

What carrier roaming actually costs travelers.

7-day trip with AT&T

$84.00 carrier$3.67 eSIM

AT&T International Day Pass charges $12/day in Reunion. Over 7 days that is $84.00 — even if your phone only syncs email in the background.

7-day trip with Verizon

$84.00 carrier$3.67 eSIM

Verizon TravelPass auto-enrolls your line at $12/day. A 7-day trip costs $84.00, and high-speed data is capped at 5 GB.

7-day trip with T-Mobile upgrade

$70.00 carrier$3.67 eSIM

T-Mobile's free tier is 128 kbps — unusable for maps or video. The $10/day speed upgrade in Reunion adds up to $70.00 over 7 days.

Two-week extended trip (AT&T)

$168.00 carrier$3.67 eSIM

A 14-day trip pushes AT&T Day Pass to $168.00. AT&T caps charges at $120/month (10 days), so the remaining days are included — but you still pay $120 minimum.

Watch out

Roaming traps in Reunion

Hidden charges and gotchas that catch travelers off guard.

high risk

Background app sync

Your phone syncs email, photos, and apps in the background the moment it connects in Reunion. Each sync triggers a full day's roaming charge on AT&T and Verizon.

Enable airplane mode before landing, then activate your eSIM.

high risk

Verizon auto-enrollment

Verizon auto-enrolls TravelPass when your phone connects in Reunion. You must opt out in the My Verizon app before departure.

Disable TravelPass in the My Verizon app before your trip.

medium risk

iMessage SMS fallback

When iMessage cannot reach Apple servers it falls back to SMS. One international SMS can cost $0.50-$1.00 and triggers a roaming day charge.

Turn off Send as SMS in Settings > Messages before departure.

medium risk

Layover data charge

A brief layover or transit stop in Reunion can trigger a full $12 day charge if your phone connects to a local tower.

Keep airplane mode on during layovers unless you need data.

Verdict

eSIM or carrier roaming for Reunion?

The bottom line on cost and speed.

A travel eSIM wins on both cost and speed for Reunion. The cheapest verified plan delivers 1GB for $3.67 — that is 96% less than AT&T's $84.00 over 7 days.

You save $80.33 on a single trip. No daily fees, no data caps beyond your plan allowance, no auto-enrollment surprises. Install before departure, activate on landing, done.

Family math

Family roaming costs in Reunion

Per-person charges multiply fast for families.

Family roaming costs for a 7-day trip to Reunion, verified May 2026
Carrier	Family of 2	Family of 4	eSIM (4)	Savings (4)
AT&T Day Pass	$168.00	$336.00	$14.68	$321.32
Verizon TravelPass	$168.00	$336.00	$14.68	$321.32
T-Mobile Upgrade	$140.00	$280.00	$14.68	$265.32

All options

Every way to get online in Reunion

Ranked from cheapest to most expensive.

#1Travel eSIM$3.67 totalBest

Prepaid data on local networks in Reunion. Install before departure, activate on arrival. Full LTE/5G speed.

#2Hotel / cafe Wi-FiFree

Wi-Fi availability varies in Reunion. Not reliable for navigation or ride-hailing on the move.

#3T-Mobile free tierIncluded

128 kbps data — technically free but practically unusable for maps, photos, or video.

#4AT&T International Day Pass$84.00 (7 days)

$12/day on local carriers. Background syncs trigger a full day charge.

#5Verizon TravelPass$84.00 (7 days)

$12/day with 5 GB high-speed cap. Auto-enrolls unless you opt out.

Quick answer

Reunion roaming charges at a glance

Roaming in Reunion costs £2.00 to $12.00 per day on major carriers. A 7-day trip adds $84.00 in roaming fees before you send a single photo.

T-Mobile is the cheapest carrier option for Reunion, including roaming at no extra charge with Unlimited at 2G.

Verizon charges the most at $12.00/day. A 14-day trip costs $168.00 in roaming fees alone.

A travel eSIM for Reunion starts at $3.67 total, covering the entire trip at local network speeds with no daily charges.

Local value

Savings in EUR

What your eSIM saving means in Reunion's local currency.

Carrier roaming fees are billed in USD and feel abstract until converted. The $80.33 you save on a 7-day trip with a travel eSIM — compared to AT&T — is real money. That's roughly the cost of two decent meals, a day tour, or several taxi rides in Reunion. Your bank converts the $3.67 eSIM charge to € (EUR) at the spot rate with no markup; carrier fees hit your bill weeks later, often with additional currency conversion charges from your carrier.

Currency: € EUR

eSIM cost (USD): $3.67

AT&T 7-day (USD): $84.00

How to switch

How to avoid roaming charges in Reunion

1
Put your phone in airplane mode before takeoff.
Prevents auto-enrollment in carrier roaming passes during the flight or on landing.
2
Buy a travel eSIM for Reunion ($3.67 typical).
Travel eSIM providers (HelloRoam, Airalo, and Saily) sell pre-purchased plans with QR-code activation.
3
Install the eSIM and label it.
Install in airplane mode. Label the line "Reunion — data only." Keep your carrier line for SMS.
4
Enable the eSIM line for data after landing.
Switch default data to the eSIM. Leave your carrier line off for data, on for incoming SMS. Emergency number in Reunion: 15/17/18/112.
5
Back home: switch data back to your carrier.
The eSIM stays available for your next trip. No re-purchase needed if data remains.

Data tips

Data usage tips for Reunion

Download offline maps before you go

Google Maps and Apple Maps both support offline areas. Download your destination city to avoid burning data on navigation.

Use Wi-Fi for large downloads and video

Hotels, cafes, and airports have Wi-Fi. Save your eSIM data for when you actually need mobile connectivity.

Turn off automatic app updates

iOS and Android both update apps in the background. Disable auto-updates over cellular to keep data usage predictable.

Compress photos before uploading

Social media apps upload full-resolution photos by default. Switch to lower quality uploads or wait for Wi-Fi.

Calculate

Your exact savings for Reunion

Pick your carrier, trip length, and data usage.

1Your carrier

2Destination

3Trip length

4Data usage

You save

$74.60

on a 7-day trip to Japan

AT&T · 7d

$84.00

Best eSIM · moderate usage

$9.40

Compare eSIM options

FAQ

Common Reunion roaming questions

What is the emergency number in Reunion?

The emergency number in Reunion is 15/17/18/112. Emergency calls work without a SIM card, eSIM, or active data plan. Your phone will connect to the strongest available signal from local carriers. Save 15/17/18/112 in your phone contacts before departure. If you have an active travel eSIM, emergency calls route through the eSIM's network for the best signal quality.

Which network does my phone connect to when roaming in Reunion?

When roaming in Reunion, your US or UK carrier connects you to partner networks including Orange RE, SFR, Free. Reunion has 1 carrier networks. A travel eSIM connects to the same networks at the same or better speed. The difference is cost: carrier roaming charges $12/day on AT&T while the eSIM charges $3.67 total. You get the same towers, the same coverage, and the same download speeds.

Are there any connectivity quirks or restrictions in Reunion?

Reunion has a few connectivity notes to be aware of: French department — EU roaming applies. A travel eSIM handles these conditions the same as carrier roaming. Check your eSIM provider's coverage page for any Reunion-specific notes.

How much does AT&T International Day Pass cost in Reunion?

AT&T International Day Pass costs $12 per day in Reunion. A 7-day trip costs $84.00 in roaming fees. The pass includes 2GB of high-speed data per 24-hour period, then speeds drop to 128 kbps. The charge triggers any day your phone connects to a network, including background syncs.

How much does T-Mobile International Pass cost for Reunion?

T-Mobile International Pass costs $10/day in Reunion. A 7-day trip costs $70.00. A 14-day trip costs $140.00. T-Mobile raised this price from $5/day to $10/day in 2026. The pass includes 2GB of high-speed data per day, then speeds drop to 256 kbps. A travel eSIM for Reunion costs $3.67 for an entire week.

Is Verizon's Monthly International Plan better for long trips to Reunion?

Verizon's Monthly International Plan costs $100/month with 20GB of data. For trips longer than 8 days to Reunion, it costs less than daily TravelPass charges. A 14-day trip on TravelPass costs $168.00 versus $100 on the monthly plan. A travel eSIM for Reunion still costs $3.67 for the same period, making it the cheapest option by a wide margin.

Do I still get free EU roaming with Vodafone UK in Reunion?

Reunion is not in the EU, so EU roaming rules do not apply. Vodafone charges GBP6.85/day via Roam Further for worldwide destinations including Reunion.

What happens if I run out of eSIM data in Reunion?

When your eSIM data runs out in Reunion, your data connection stops. You will not incur additional charges because travel eSIMs are prepaid. To restore connectivity, purchase a new eSIM plan from your provider's app (using hotel Wi-Fi), or switch to a different eSIM provider. Most providers deliver new eSIM plans within minutes. Your carrier SIM continues to work for calls and SMS regardless of your eSIM data status.

How do I set up a travel eSIM for Reunion on iPhone?

Open Settings > Cellular > Add eSIM > Use QR Code. Scan the QR code from your eSIM provider. Label the new line "Reunion Data." After landing in Reunion, go to Settings > Cellular > Cellular Data and select the eSIM as your default data line. Keep your carrier line active for calls and SMS but disable its cellular data. The setup takes under 5 minutes.

How do I set up a travel eSIM for Reunion on Android?

Open Settings > Network and Internet > SIMs > Add eSIM (or Settings > Connections > SIM Manager > Add eSIM on Samsung). Scan the QR code from your provider. After landing in Reunion, go to Settings > Network > SIMs and select the eSIM for internet access. Keep your carrier SIM active for calls and texts with its mobile data toggled off.

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