Carry-on suitcase with a passport on top in an airport terminal, ready for an international trip and eSIM setup.

International Phone Plans: Essential Tips for Travelers

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International trips are always a blast, but if you are anything like us, staying connected abroad can be the most confusing part of the planning. Nobody wants to land in a new country and discover that a few hours of maps and messages turned into a shocking roaming bill. The good news is that figuring out an international phone plan got a lot easier in the last couple of years, because most newer phones now support an eSIM that you can buy and activate before you even leave home.

Below we walk through every option we have actually used, from eSIMs to carrier add-ons to leaning on Wi-Fi, so you can pick the one that fits how you travel and what you are willing to spend.

The Short Answer

If you mostly need maps and messages: Buy a data eSIM like Airalo before you fly and pay only for the data you will realistically use.
If you stream, share photos or work on the road: An unlimited eSIM plan like Holafly keeps you from watching your data meter all trip, and our code PASSPORTPARTNERS takes 5 percent off.
If your trip is short: Check what your own carrier charges per day first, because a few days of an add-on can beat anything else.
If you are watching every dollar: Download offline maps, use Wi-Fi at your hotel and cafes, and skip a plan entirely.

Start Here: What Do You Actually Need Your Phone For?

Before you compare a single price, think about how you plan to use your phone on this specific trip. Are you using it mainly for navigation, or are you posting to social media throughout the day? Will you be calling your kids or your folks back home, and how often will those calls happen? Do you need to check in with work, or are you fully offline for a week?

Once you know how you will really use your phone, you can pick a plan that fits your needs without breaking the bank. A light user who wants directions and a nightly check-in needs something very different from someone editing and uploading video every evening.

What Is an eSIM, and Why We Use One Now

An eSIM is a digital SIM card that lives inside your phone, so there is no tiny plastic chip to swap out and nothing to lose in a hotel room. You buy a plan online, scan a QR code or tap through the provider’s app, and your phone connects to a local network as soon as you land. Most phones released in the last several years support eSIM, though it is worth confirming yours does and that it is carrier unlocked before you buy anything.

The reason we switched is simple. We can set everything up at home on our own Wi-Fi, land in a new country, and have maps working before we reach baggage claim, all without hunting for a shop that sells SIM cards or handing our passport over at a kiosk.

Airalo: Best for Paying Only for What You Use

Airalo works like a marketplace of data plans. You pick your destination, choose how much data you want, and pay for that amount rather than a flat daily rate. There are plans for a single country, plans that cover a whole region, and global plans if you are hopping between several countries on one trip, which makes it a natural fit for a multi-country itinerary.

We reach for this one when we know we will be on hotel and restaurant Wi-Fi for a good chunk of the day and we just need maps, messages and the occasional search while we are out. If you run low, you can top up in the app instead of buying a whole new plan.

Holafly: Best for Not Thinking About Data at All

Holafly takes the opposite approach and sells unlimited data plans at a flat rate for the number of days you are traveling. You are not counting gigabytes or getting a warning halfway through the trip, which is worth a lot when you are navigating a new city, pulling up reservations and posting as you go.

This is the option we point people to when they know they are heavy phone users, or when the whole trip depends on being online, like a work trip or an itinerary packed with timed entry tickets and transfers. One thing to check before you buy is how the plan handles hotspot sharing, because the rules on tethering to a laptop or a second phone vary by plan.

Our link applies the code PASSPORTPARTNERS, which takes 5 percent off any destination, so it is worth using even if you were going to buy anyway.

Passport Partners Tip

Install and activate your eSIM while you are still on Wi-Fi at home, but set it to turn on when you arrive. Fumbling with a QR code on airport Wi-Fi after a long flight is nobody’s idea of a good start, and you will want your phone working the moment you need to find your transfer.

How We Choose an eSIM

The honest answer is that it comes down to how much data you burn through. If you are a light to moderate user who leans on Wi-Fi, buying a set amount of data usually stretches further for the money. If you are online constantly and you would rather pay one price and stop thinking about it, an unlimited plan is worth the premium for the peace of mind alone. Different plans fit different trips, so compare the specific plan for your destination and dates rather than assuming one company always wins.

It is also worth knowing that most eSIM plans are data only, which means you will not get a local phone number for regular calls and texts. That has never been a problem for us, because we make calls through WhatsApp or FaceTime over data, but it matters if you need to receive a text from a bank or an airline.

Ready to get set up? View plans for your destination on Airalo or Holafly, where the code PASSPORTPARTNERS takes 5 percent off.

What We Actually Paid

Prices are the thing nobody puts in writing, so here is exactly what we spent on our last two trips.

Our Real Numbers

What we paid, accurate as of September 2026.

Holafly, Scotland, 10 days: 29.63 USD, which works out to about 2.96 USD a day for unlimited data.
Airalo, Europe, 15 days: 49.00 USD, which works out to about 3.27 USD a day across multiple countries.

Here is what we have actually spent, per plan.

Scotland, 10 days: 29.63 USD for unlimited data, which works out to about 2.96 USD a day.

Europe, 15 days: 49.00 USD across multiple countries, which works out to about 3.27 USD a day.

Both land right around three dollars a day, and that is the number worth holding onto when you call your carrier. For comparison, Verizon TravelPass would run us 12 dollars per line, per day. That is 120 dollars for one phone over ten days in Scotland, against the 29.63 we paid for one plan. For the two of us it would have been 240 dollars on TravelPass, and buying two eSIMs would have put us around 60.

One note in the interest of being straight with you. On that Scotland trip, one of our two plans was gifted to us, so 29.63 is the cost of a single plan rather than what we paid to cover both of us. We are giving you the per-plan number because that is the one that applies to your trip anyway.

Do You Both Need One?

This is the question we get most often as a couple, and the answer depends on how you travel together. If the two of you are side by side all day, one person can buy the plan and share the connection through a personal hotspot, and you have effectively cut your cost in half.

Before you count on that, check two things. Confirm that the plan you are buying actually permits hotspot sharing, because some unlimited plans restrict or limit tethering, and remember that sharing a connection drains the host phone’s battery noticeably faster. Pack a power bank if that is your plan for the day.

We buy two when we know we will split up, which happens more than you would think. One of us runs back to the room while the other holds a place in line, or we take separate routes to the same dinner reservation. Being the person without service in a city you do not know is a bad ten minutes, and the second plan costs about as much as one round of drinks.

Can You Work Off an eSIM?

If you are stacking PTO around a job you still have to check in with, yes, an eSIM handles it. Email, messaging apps and file uploads all run fine on a solid local connection, and a video call works as long as you have good signal, though a call is one of the fastest ways to burn through a set data allowance. If you know you have meetings on the calendar, that is an argument for an unlimited plan rather than a small data bucket.

Our habit is to do anything heavy, like uploading photos or joining a long call, on hotel Wi-Fi in the morning or evening, and to save the eSIM for everything that happens while we are out.

Check What Your Current Carrier Offers

So many carriers now include international options as part of a regular plan, so this is always worth a phone call before you buy anything else. Contact your provider and ask exactly what is included in your plan and what a short-term add-on would cost per day. If the price is right, adding an international package to the service you already pay for can be the simplest and most cost-effective route, and you keep your own phone number the whole time.

Watch out for hidden fees like taxes, activation charges or overage rates, and read the fine print on what counts as a billing day. A daily pass that sounds cheap can add up fast on a two-week trip, which is usually the point where an eSIM starts to win.

Physical SIM Cards Still Have Their Place

If your phone does not support eSIM, or you are staying in one country for a long stretch, a physical SIM card is still a solid budget option. You can buy them at convenience stores, mobile shops and often right at the airport when you land. Just make sure your phone is unlocked and able to accept a local SIM before you count on this option, and keep your original SIM somewhere safe so you can swap it back on the way home.

An international SIM card is the other version of this. These let you switch between networks across several countries without changing your number, which can work well for a longer multi-country trip. Do your due diligence on coverage in each destination you are visiting and compare the rates, because they are not all created equal.

Lean on Wi-Fi When You Can

Taking advantage of Wi-Fi is something we do whenever possible, even when we have a data plan running. Hotels, cafes, museums, airports and plenty of public squares offer free Wi-Fi, and using it keeps you connected without eating into your plan. If Wi-Fi is going to be your main approach, download your maps for offline use before you go, and screenshot your reservations, tickets and addresses so you are not stranded when you step out of range.

If you need to connect several devices at once, you can also look into buying or renting a portable hotspot, though in most cases an eSIM on one phone plus tethering is simpler and cheaper.

Apps That Keep You Connected for Free

WhatsApp, Signal, FaceTime and Skype all let you stay connected without relying on traditional phone networks, since they make voice and video calls over the internet instead. WhatsApp in particular is worth downloading before you leave, because in much of Europe, Latin America and Asia it is the default way people communicate, and tour operators and hosts will often message you there rather than call.

Keep an Eye on Your Data Usage

Track your data as you go so you stay within your plan’s limits. There are apps that will monitor this and alert you when you are getting close, but most smartphones already have the tool built in under your cellular or mobile data settings. A few small habits make a real difference, like turning off automatic photo backups until you are on Wi-Fi, downloading playlists and shows before you fly, and closing apps that refresh in the background.

What About Cruises?

We tested this one ourselves, and our eSIM did not work in the middle of the ocean. Once the ship is away from land there is no local network for your phone to find, and the only service available is the ship’s own satellite internet package that you buy onboard. In port, though, it was genuinely useful, and that is where you need it most for maps, translation and reaching whoever wandered off.

If your itinerary hits several countries, a regional plan covering all of them is usually simpler and cheaper than buying a separate plan in each port. Turn your data off while you are at sea so your phone is not quietly searching for a signal, and turn it back on as you come into port. For everything else we learned the hard way, our cruise packing list covers what to bring, including the power strip and adapter situation.

International Phone Plan FAQs

Here are the questions we get asked most often about staying connected abroad.

For most travelers, a data-only eSIM bought before the trip is the cheapest option, because you pay only for the data you need and skip roaming charges entirely. If you are willing to rely on Wi-Fi and offline maps, you can get by without any plan at all.

We paid 49.00 USD for a 15-day Airalo plan covering multiple countries in Europe, and 29.63 USD for 10 days of unlimited data with Holafly in Scotland. Both come out to roughly three dollars a day, which is usually well under what a carrier charges for a daily international pass.

Yes. Our code PASSPORTPARTNERS takes 5 percent off any destination, and it applies automatically when you use our link.

Not at sea. Ours did not connect once we were away from land, because there is no local network for your phone to find, so you would need the ship’s own internet package for time on the water. In port it worked well, which is when you actually need it.

You can share the connection through a personal hotspot if the plan allows tethering, which cuts your cost roughly in half when you are together all day. We still buy two when we know we will split up during the trip.

You do not strictly need one, but we think it is worth it. Wi-Fi does not help you when you are lost on a side street, trying to reach a driver who is waiting somewhere else, or pulling up a ticket at the entrance to an attraction.

Yes. An eSIM runs alongside your regular line, so your usual number stays on your phone and you can still receive texts and calls on it, though your carrier’s roaming rates apply if you use it. Most travelers leave their home line on for texts only and route all their data through the eSIM.

Set it up a few days before you fly, while you are on reliable Wi-Fi at home. That gives you time to confirm your phone is unlocked, install the eSIM, and sort out any issues with support before you are standing in an airport in another country.

No matter which option you choose, staying connected with the people who matter to you is worth planning for. Think through your needs, do a little research before you fly, and let the technology do the rest.

Everything You Need to Stay Connected

These are the tools we actually use to stay online when we travel.

Data eSIMs on AiraloHolafly: 5% Off With PASSPORTPARTNERSLuggage Storage on BounceFlight Deals on Going

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