Savings Calculator
Reunion eSIM Savings Calculator: Roaming vs eSIM (2026)
AT&T charges $10/day in Reunion. Verizon charges the same. Over 10 days, that bill reaches $100. A travel eSIM on Orange RE's 5G network costs $18.43 — 82% less. Here is the full breakdown.
Your carrier's roaming rate in Reunion
| Carrier | Plan | Daily Rate | 7-Day Cost |
|---|---|---|---|
| Vodafone | Roaming Passport | £6/day | £42 |
| EE | Roam Abroad | £6/day | £42 |
| AT&T | International Day Pass | $10/day | $70 |
| Verizon | TravelPass | $10/day | $70 |
Vodafone Roaming Passport
Vodafone's fair-use threshold in Reunion is not published on its rate card. Once exceeded, speeds drop to 2G-equivalent rates while the £6/day charge continues. An eSIM plan at $1.83/GB has a defined data ceiling with no speed surprises.
EE Roam Abroad
EE includes calls and texts in the £6/day Reunion pass, but SMS to non-UK numbers may carry per-message charges in some tariffs. Check the current rate card before sending group messages abroad.
AT&T International Day Pass
One week of AT&T roaming in Reunion costs $70 ($10/day through Orange RE). An eSIM on Orange RE starts at $1.83/GB for the same connection.
Verizon TravelPass
Verizon charges $10 for each calendar day your phone uses data in Reunion — not each 24-hour window. Arriving after midnight and leaving before midnight the next day costs two full day-pass charges on the same trip.
eSIM alternative cost for Reunion
Plan tiers for Reunion
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $3.67 | $3.67 |
| 3GB | $5.48 | $1.83 |
| 5GB | $11.32 | $2.26 |
| 10GBBest fit | $18.43 | $1.84 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $3.10 | $3.10 | 4% |
| 3 days | $8.91 | $2.97 | 8% |
| 7 days | $20.80 | $2.97 | 8% |
| 14 days | $40.25 | $2.88 | 11% |
| 30 days | $79.46 | $2.65 | 18% |
Which provider covers Reunion
The primary provider for Reunion is Airalo, connecting to Orange RE's 5G network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $11.32 | $18.68 (62%) |
| 7 days | $70 | $70 | $105 | $18.43 | $51.57 (74%) |
| 14 days | $140 | $140 | $210 | $18.43 | $121.57 (87%) |
| 21 days | $210 | $210 | $315 | $18.43 | $191.57 (91%) |
| 30 days | $300 | $300 | $450 | $18.43 | $281.57 (94%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $18.43
Save $81.57
Couple
Carrier: $200
eSIM: $36.86
Save $163.14
Family of 4
Carrier: $400
eSIM: $73.72
Save $326.28
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 Reunion
Solo traveler
T-Mobile advertises free data in Reunion, but it runs at 256 Kbps. The high-speed upgrade costs $15/day, reaching $150 over 10 days. A 15GB eSIM on Orange RE delivers full 5G for $27.45. The gap: $122.55 (82%). T-Mobile's free tier is usable only for plain text messages.
Family trip
Two travelers on Verizon in Reunion for 10 days: 2 lines x $10/day x 10 = $200. Two 15GB eSIMs: $54.90. Savings: $145.10 for the couple. If only one person needs heavy data, one eSIM with tethering costs $27.45 total and covers both devices through the phone's hotspot feature.
Business trip
Day 1 in Reunion: AT&T charges $10 the moment you turn on your phone at the airport. Day 2: another $10 triggered by a background sync at 6 AM. Day 3: $10 more, totaling $30 for a 3-day trip. A 13GB eSIM costs $23.79 for all three days combined. For a team of three: AT&T total $150 vs eSIM total $71.37. Savings: $78.63.
Long-stay and digital nomads
A weekend (3-day) trip to Reunion: AT&T roaming costs $30. An eSIM costs roughly $11.32. Savings: $18.68. A 14-day trip: AT&T costs $140. eSIM costs $38.43. Savings: $101.57. Carrier roaming adds $10 for every extra day. An eSIM plan covers a fixed period regardless of daily charges. The break-even point is day one in Reunion.
Frequent traveler annual savings
Annual eSIM savings for 4 trips to Reunion: $290.20. That covers 1 round-trip Uber rides, 5 museum admissions, or 19 meals in Reunion. The data connection is identical on Orange RE; the savings go toward experiences.
Extended stay economics
Two weeks in Reunion on AT&T International Day Pass: $10/day x 14 = $140. Verizon TravelPass: $140. T-Mobile high-speed add-on: $210. A 20GB eSIM on Orange RE covers the same 14 days for $38.43. That is $101.57 less than AT&T (73% savings). The per-day cost of the eSIM works out to $2.75/day vs AT&T's fixed $10/day. Reunion also has unlimited daily eSIM plans at $3.23/day, which totals $96.90 for 30 days of unrestricted data.
Frequent flyer savings
Verizon TravelPass compounds faster for families. A family of four taking 2 trips to Reunion per year: 4 lines x $10/day x 10 days x 2 trips = $800/year. Eight eSIMs (4 per trip x 2 trips): $219.60/year. Family annual savings: $580.40.
Data usage savings
Light data users — email, messaging, occasional maps — use 300-500 MB/day in Reunion. Over 10 days: 4.0 GB total. AT&T still charges the full $10/day regardless: $100. An eSIM at $1.83/GB for 4.0 GB costs $7.32. Light users overpay the most on carrier day passes — the fixed fee exceeds their actual consumption value.
Couples trip savings
When a couple splits up during the day in Reunion (one at a museum, one at a market), each phone needs its own data connection for maps and messaging. Hotspot sharing fails when partners are apart. Two individual 15GB eSIMs at $27.45 each: $54.90 total. AT&T for two lines: $200. Independent eSIMs save $145.10 while providing separate data for separate activities.
UK carrier comparison
A UK family of four visiting Reunion: Vodafone: 4 x GBP6/day x 10 = GBP240. EE: 4 x GBP6/day x 10 = GBP240. Four eSIMs: $109.80. Family savings vs Vodafone: roughly $195 USD equivalent.
Our verdict
The savings math for Reunion is clear. Solo: $72.55 saved vs AT&T for 10 days. Family of four: $290.20 saved. Annual (2 trips): $145.10 saved. All figures use the same Orange RE 5G network. The eSIM costs less at every trip length and every group size.
How much can I save with eSIM in Reunion?
An eSIM cuts Reunion data costs by 82% compared to carrier roaming. AT&T charges $100 for 10 days. A 10GB eSIM on Orange RE costs $18.43. The saved $81.57 covers meals, transportation, or activities in Reunion. Verified May 2026.
How much does roaming cost in Reunion?
AT&T charges $10/day in Reunion. A 7-day trip costs $70. A 14-day trip costs $140. A 10-day trip costs $100. An eSIM alternative on Orange RE starts at $18.43 for the same network. Verified May 2026.
Reunion network context
Local networks
Reunion has 1 mobile network. The primary carriers are Orange RE, SFR, Free.
Connectivity notes
- French department — EU roaming applies
Good to know
Orange is the only mobile network in Reunion. Your carrier roaming plan and a travel eSIM both connect to the same towers. The signal quality is identical; only the cost differs.
Quick tip
Local prices in Reunion are in EUR (€). eSIM plans are priced in USD, eliminating exchange rate uncertainty.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Reunion?
- AT&T International Day Pass charges $10/day in Reunion. 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 Reunion?
- Verizon TravelPass charges $10/day in Reunion. A 10-day trip costs $100. A 10GB eSIM covers the same trip for $18.43 on the same local network — saving you 82%.
- How much data do I need for a week in Reunion?
- 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 Reunion?
- 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 Reunion?
- T-Mobile Magenta includes free data in Reunion, 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 Reunion?
- A 30-day eSIM for Reunion 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.
- Do UK carriers charge for roaming in Reunion?
- Vodafone and EE charge £6/day for roaming in Reunion outside their EU free-roaming zone. A travel eSIM on the same local network costs a fraction of that weekly rate.
- How much does carrier roaming cost in Reunion?
- AT&T charges $10/day on International Day Pass for Reunion. Verizon charges $10/day on TravelPass. T-Mobile includes Reunion for free at 256 Kbps — barely fast enough for text messages, not usable for maps or apps. Without any plan, AT&T's pay-per-use rate is $2.05/MB, meaning a single Google Maps session costs over $10. A travel eSIM on Orange RE starts at $3.67 for 1GB — the same 5G network at a fraction of the daily roaming cost.
- Is T-Mobile's free international data fast enough in Reunion?
- No. 256 Kbps sounds like it covers light use, but even a single email with an attachment or a 30-second map route takes over a minute to load at that speed. T-Mobile's free tier in Reunion is functional only for plain text messages. The paid upgrade runs $15/day — identical to AT&T's roaming fee. A travel eSIM on Orange RE at $1.83/GB costs less per GB than any day-pass option and has no speed restriction.
- How is my roaming bill calculated in Reunion?
- A traveler lands in Reunion, checks one notification, and AT&T bills $10 for the entire calendar day. That is how per-day billing works — any cellular connection, even a background sync at midnight, triggers the full daily charge. Without a day pass, AT&T charges $2.05/MB. A 15-second Instagram scroll could cost $30. An eSIM at 1GB for $3.67 is a fixed cost: no per-day triggers, no per-MB metering, no bill surprises.
- Does a travel eSIM work on islands in Reunion?
- Island coverage in Reunion depends entirely on Orange RE's network reach. Your travel eSIM connects to the same towers that AT&T and Verizon roam through — if Orange RE covers the island, the eSIM works. If not, neither an eSIM at $1.83/GB nor carrier roaming at $10/day will provide service. Check Orange RE's coverage map directly before departure. For islands in Reunion with limited infrastructure, download offline content and maps over the mainland's WiFi before crossing. Rates checked June 2026.
- How much does 1 GB of roaming data cost in Reunion?
- On AT&T without a plan: roughly $2,050 (at $2.05/MB). With AT&T International Day Pass: $10/day — you get access to your home plan's data allowance, but the day fee applies regardless of usage. With a travel eSIM: $1.83 per GB on Orange RE's 5G network. The eSIM is the only option where you pay strictly for what you use at a predictable, low per-GB cost.