A travel eSIM follows you from ship to port: our Global eSIM gives unlimited data, with a daily high-speed allowance, across 165+ countries. Our Global + Cruise plan, priced on its own, covers 20+ cruise lines at sea.
The roaming bill that follows you from deck to dock is the one to dodge.
A travel eSIM stays on your phone from Costa ship to port
One Maya eSIM covers your phone on both sides of the gangway, in plans of 3, 7, 14 or 30 days. We offer four core plan types, each a prepaid, time-based data pass with unlimited data across 165+ countries.
Cruise coverage is its own purchase. The Global + Cruise plan covers 20+ cruise lines and 165+ countries, and Carnival Cruise Line is one of the lines it covers.
Your high-speed allowance refreshes every 24 hours, counted from the activation date. One eSIM, one phone, and a trip that’s about the trip.
How does a travel eSIM keep you connected in Costa’s ports?
In port the Global eSIM runs on local coverage in the 165+ countries it serves, with unlimited data under a daily high-speed allowance that we state in our own terms. That allowance is the Daily Quota, at up to 4G LTE or 5G where local networks offer it.
After the Daily Quota is used, data continues at standard speed for the rest of the day. The allowance resets automatically every 24 hours. Some restrictions apply to very high usage of Unlimited eSIM plans, to keep service quality high for everyone.
Your days start counting when you enable the Maya eSIM in your phone settings. A billing day is 24 hours from the moment the plan starts.
No SIM swaps at the pier. No hunting for a kiosk. Enable it, pick your port and go.
How does a travel eSIM get a signal at sea on a cruise ship?
At sea, a travel eSIM gets its signal through the Global + Cruise plan, which covers 20+ cruise lines and is priced on its own. Our pages name Norwegian Cruise Line and Royal Caribbean International among those lines.
Costa Cruises describes the roaming route in its own FAQs (FAQs: Frequently Asked Questions, Costa Cruises). They say:
“satellite mobile radio coverage is available on all ships in the fleet that allows customers of the main mobile phone operators to send and receive calls and text messages, and also use data services offshore. Your device must be enabled for international roaming. Rates are determined by your operator depending on your service plan, please contact them for more information.”
Near the coast, the FAQs add, the phone could connect to a local operator, and the guest then receives an SMS stating the costs incurred. Cabin calls on the ship’s satellite telephone are charged to your account.
Costa Cruises Mexico’s page says the GSM switches off automatically when the ship enters a port, where phones connect normally depending on the phone tariff (Información Importante, Costa Cruises Mexico). The same page advises contacting your phone provider before boarding, because international call costs can be high and are rarely included in phone company packages.
Pick the plan before you board and the roaming screen stays boring.
How much does a week online on a Costa cruise cost with an eSIM?
A week of cruise coverage on the Global + Cruise plan is USD 109.99, priced on its own. The 7-day Global plan, which covers your days on land, is USD 19.99 (USD 2.86/day) and suits week-long trips and city breaks.
For a longer trip, the 14-day plan costs USD 27.99 (USD 2.00/day) and is marked Most Popular.
Your home carrier has its own price for the same week on land. According to Verizon, TravelPass is $12 per day, charged only on days the phone is used abroad, so a week of daily use is $84 (Verizon, 2026). According to AT&T, its International Day Pass is $12 per day on land for the first line, also charged only on days the phone is used, which makes $84 for seven days (AT&T, 2026).
Pick your days and go.
What should you check before buying a travel eSIM for a cruise?
Check that the plan covers your cruise line at sea, how the daily high-speed allowance is worded, and when the plan’s days end. Our plans are one-time purchases that end with their days, and Auto Top-Up is opt-in and off by default.
Auto Top-Up is an optional feature that buys the same plan again when the current one expires. You can turn it off at any time from My eSIM in the app or at maya.net, with immediate effect. With Auto Top-Up off, the plan runs until it expires and stops with no further charge.
Setup is where one aloSIM buyer’s trip stalled. A 1-star Trustpilot review of aloSIM by Osman D., dated August 13, 2026, reads:
“No Russian manuals available. I purchased aloSIM for my family while they were traveling, but none of them could set up the eSIM. As an experienced Windows and Android user, I could have probably figured it out by trial and error, but my family couldn’t. It’s way too complicated with English-only instructions. Plus, after my payment successfully processed, the app still asked me to buy the plan again. # update since you are planning to add Russian instructions, I’ll give aloSIM another try. My family is heading to Turkey at the end of August, and if everything goes well, I’ll update my review to 5 stars.”
Atlas has lived through tectonic shifts, so one English-only setup page doesn’t rattle him. Our fix is plain: one eSIM, installed once on Wi-Fi before you sail, that stays on your phone.
Which travel eSIM should you buy for a Costa cruise?
For data across several ports and sea days, each provider’s own published words on plan structure and data allowance are what count. Holafly and GigSky each publish cruise coverage in their own words, while Airalo and Saily list no cruise plan.
| Travel eSIM | How plans are sold | Unlimited plan allowance, as published | Cruise plans, as published |
|---|---|---|---|
| Maya Mobile | One Global eSIM for 165+ countries, unlimited data at a flat price by trip length: USD 9.99 for 3 days, USD 19.99 for 7 days, USD 27.99 for 14 days, USD 49.99 for 30 days | A daily high-speed data allowance (the Daily Quota) at up to 4G LTE or 5G where local networks offer it, reset every 24 hours; unlimited data at standard speed once the Daily Quota is used | Global + Cruise plan for 20+ cruise lines, priced on its own: USD 49.99 for 3 days, USD 109.99 for 7 days, USD 299.99 for 30 days |
| Airalo | Per country, per region, or one global plan; priced in USD | Our unlimited data packages don’t have a fixed total data cap. However, to keep the network running fairly for everyone, when you use more than 3GB in a day, we’ll slow down (or “throttle”) your internet speed to 1 Mbps for the rest of that day. Your full high-speed connection will automatically be restored when your daily allowance next resets. Your daily allowance resets every 24 hours, counted from the time you activated your eSIM. | No cruise plan published |
| Holafly | Per country, per region (Europe, Latin America, Cruise plans), and monthly global plans: Light, 25GB of data, $ 49.90USD/month; Unlimited, $ 64.90USD/month; Ultra, $ 90.95USD/month | Unlimited data plans are subject to a fair use policy, which may temporarily reduce speed in cases of unusually high usage to maintain network quality for all users. | If you buy an eSIM for travel on a Caribbean cruise, you’ll only have coverage on land, and a connection is not guaranteed while sailing. In the Bahamas, please note that service is unavailable in Freeport, CocoCay, and Ocean Cay, although it remains available at the other ports. |
| Saily | Per country and per region, plus one global plan; by the gigabyte, unlimited, or both | The Unlimited plan gives you 5 GB per day at full 4G/5G speed, then keeps you online at 1 Mbps for the rest of the day: fast enough for navigation, messaging, and standard browsing. | No cruise plan published |
| GigSky | Per country, per region, and cruise plans; by day, unlimited data with 3.5GB daily high-speed allowance | Get up to 3.5GB/day at our fastest speeds: Video calls, uploads, streaming and more. | You can use GigSky on 200+ cruise ships (Royal Caribbean, Carnival, Norwegian, etc.) and in 200+ countries on land. |
Each rival’s cells are its own published words, or a short summary of what it states; the Maya Mobile cells are from maya.net.
How Maya keeps one eSIM on your phone from ship to shore
Maya Mobile is a travel eSIM giving unlimited data, with a daily high-speed allowance, in 165+ countries and 20+ cruise lines through a single eSIM permanently installed on your phone. Several providers above sell per country and per region. We sell one eSIM, priced flat by trip length: 3, 7, 14 or 30 days, from USD 9.99.
At sea, the Global + Cruise plan covers 20+ major cruise lines with unlimited data, including Royal Caribbean International. It’s priced on its own.
Install once. The eSIM stays on the phone, and each cruise needs only a plan. Need more days mid-trip? Buy another plan from the Maya app.
One switch, flipped once. Ship and shore run on the same connection.
FAQ
Can I install my eSIM before I board a Costa ship?
Yes. Installing needs a working Wi-Fi or cellular connection, because the connection verifies and activates the eSIM. The eSIM won’t connect to a network until you arrive in the destination, so set it as your primary Cellular/Mobile Data plan on arrival. The plan clock starts when you enable it in phone settings.
What happens when my plan days end in the middle of a cruise?
The plan ends. Maya is not a subscription; each plan is a one-time purchase. Buy another plan from the Maya app or at maya.net when you need more days. Auto Top-Up, if you turn it on, buys the next plan for you.
Will my phone work with a Maya eSIM?
Yes, when it’s an eSIM-capable phone on the compatible devices list at maya.net/esim-compatible-devices. That list covers iPhones from the iPhone XR/XS series through the iPhone 17 series, including iPhone Air, SE 2 (2020) and SE 3 (2022). Samsung Galaxy, Google Pixel, Oppo and Motorola devices are on it too. Smart watches, tablets and laptops sit in a separate list of eSIM Compatible Devices.
What is the daily high-speed allowance on an unlimited eSIM plan?
Every plan carries a daily high-speed allowance, the Daily Quota, at up to 4G LTE or 5G where local networks offer it. Once it’s used, data continues at standard speed for the rest of the day, and no speed is guaranteed. The allowance refreshes automatically every 24 hours: a plan provisioned at 19:20 UTC on May 21st refreshes at that same time each day.
What refunds does Maya offer if my eSIM will not connect?
Yes, in the cases the Terms of Service set. A full refund, less any applicable payment processing fees, is available when no data has been used and the request is made within 30 days of purchase, when an activated plan is completely unusable through our error and isn’t fixed within 10 days of the refund request, or when an incompatible or carrier-locked device can’t install the eSIM. A partly used plan that doesn’t work properly because of a network issue on our side gets a partial refund, and a consumer may withdraw within 14 days of buying or until the eSIM is activated. Complete refund terms and conditions are in the Terms of Service.
Should I turn off my home carrier’s roaming on a cruise?
Yes, where your carrier bills for use at sea. AT&T’s Cruise Day Pass charges $15 for each 24-hour period you talk, text or use data, including background data (AT&T Wireless Customer Support, 2026). On select ships, after 500MB of data at sea within a 24-hour period, speed may be slowed to 512Kbps (AT&T Wireless Customer Support, 2026). AT&T Business lists $20 per day per device on 400+ cruise ships at sea (AT&T Business, AT&T Cruise Packages).
How do I fix an eSIM that will not connect on a ship?
Reset the data connection: enable Airplane Mode, wait 30 seconds, then switch it off again. If that doesn’t work, you may need to select a network manually. To update the APN on iOS, open Settings > Cellular (may be called Mobile or Mobile Service), tap the eSIM plan, tap Cellular Data Network and enter the APN name in the APN fields; on Android, go to Settings > Mobile & Network (on Samsung: Settings > Connections > Mobile Networks), select that plan, then Access Point Names, then Menu and New APN. Still no data connection? Submit a request to support.
Do I have to delete my eSIM after the cruise?
No. One Maya eSIM stays permanently on your phone, with no need to delete or reinstall it between trips. It stays on the device after the plan expires, ready for the next trip, and the next trip needs a new plan.
Maya puts one eSIM on your phone with unlimited data, and a daily high-speed allowance, across 165+ countries, while the separately priced Global + Cruise plan covers 20+ cruise lines at sea.
