Internet access abroad fails in predictable ways: a metro tunnel, a captive portal that will not load, a hotel network that is technically working and unusably slow, a day in a national park with no signal at all. None of that matters if you downloaded what you needed while you still had a connection, and all of it matters if you did not.
The short version
- Download before you need it. Maps, tickets, bookings, documents, entertainment.
- Public Wi-Fi is usually safe now, per the FTC, because most sites are encrypted.
- Look for the lock symbol or https. That is the check that matters.
- Captive portals need a browser, and often fail on a phone with private DNS enabled.
- Assume a day with no signal somewhere on any interesting itinerary.
What You Need to Know
The three sources
Mobile data, covered in International Roaming vs. eSIM. Hotel and venue Wi-Fi, which is free and variable. And nothing, which is more common than travelers expect on any itinerary that leaves a city.
Public Wi-Fi, and a correction
The standard travel advice is that public Wi-Fi is dangerous and needs a VPN. The current U.S. government position is more precise. The FTC notes that in the past, most websites did not use encryption, and your information was at risk; today most do, and because of the widespread use of encryption, connecting through a public Wi-Fi network is usually safe. The check it recommends is simple: look for a lock symbol or https in the address bar.
Two caveats the same guidance makes explicit. Encryption protects data in transit; it does not make a fraudulent site safe, since your data can be encrypted on its way to a scammer and still reach a scammer. And the general protections still matter: strong passwords, two-factor authentication, and an up-to-date operating system and browser.
None of that means a VPN is pointless. Of the 211 destinations the State Department publishes country information for, 49 explicitly recommend using a virtual private network and encrypted voice applications, which is a different argument from the one about Wi-Fi security: it is about surveillance and censorship rather than about coffee-shop hotspots.
Captive portals
The login page hotels and airports put in front of their Wi-Fi is the most common practical failure. It needs a browser, it often fails silently if your phone has private DNS or a VPN enabled, and it sometimes refuses to appear at all. The fix is usually to turn off the VPN and private DNS, connect, complete the portal, then turn them back on.
What to Do Before Your Trip
- Download offline maps for every city and region.
- Save tickets and bookings as files, not links.
- Store document copies where they open without a connection.
- Set up two-factor by app, not only by SMS.
- Check whether your destination restricts services you rely on.
Planning for a group? Send files rather than links. A shared document that needs a connection is useless at the moment the group most needs the itinerary.
Explore group travel planningImportant Considerations
Some countries restrict access to particular services, and some restrict or regulate the tools used to get around those restrictions. That is a matter of local law rather than of technology, and it is worth reading your destination’s country information page rather than assuming that what works at home works everywhere.
Bandwidth and reliability vary in ways that are invisible from a booking page. A hotel that advertises free Wi-Fi may deliver enough for messages and not enough for a video call, which matters if you have promised to join a meeting. Where a call genuinely has to happen, mobile data is usually the more dependable of the two.
Battery is part of connectivity. A phone searching for a weak signal drains far faster than one on Wi-Fi, and a dead phone has no internet at all. A power bank is the least glamorous item in this section and one of the most useful.
Tips for Group Travelers
- Distribute the itinerary as a file everyone downloads before departure.
- Name the days with no signal in advance, so nobody is worried.
- Agree a check-in time rather than expecting constant contact.
- Warn about captive portals and the VPN interaction.
- Carry a power bank or two for the group.
Common Mistakes to Avoid
- Sharing links instead of files.
- Downloading nothing before leaving Wi-Fi.
- Assuming a VPN will work everywhere, or is always needed.
- Relying on hotel Wi-Fi for a video call.
- Two-factor codes by SMS only.
Frequently Asked Questions
Is public Wi-Fi safe to use abroad?
The FTC’s current position is that because of the widespread use of encryption, connecting through a public Wi-Fi network is usually safe, and that the check to make is looking for a lock symbol or https in the address bar. It also notes that encryption does not protect you from a fraudulent site, and that strong passwords, two-factor authentication and an updated browser still matter.
Do I need a VPN?
Not for the reason most travel writing gives. For general Wi-Fi safety the FTC says encryption has largely addressed the problem. Where a VPN genuinely matters is surveillance and censorship: 49 of the 211 destinations the State Department covers recommend using one along with encrypted voice applications. Check whether one is permitted at your destination.
Why will the hotel Wi-Fi login page not load?
Captive portals need a plain browser connection and frequently fail when a VPN or private DNS is enabled. Turn both off, connect, complete the login, then turn them back on. It is the single most common connectivity problem travelers meet.
Related Travel Tips
- Phones, technology and connectivity, the section this guide belongs to.
- Offline Maps. The most valuable thing to download.
- Device Security While Traveling. What to actually worry about.
- International Roaming vs. eSIM. Paying for data.
Plan Your Trip With LABUSA Travel
Knowing which days of an itinerary have no signal turns a worrying silence into an expected one, for the traveler and for the family at home. LABUSA Travel says so in advance.
Talk with a LABUSA Travel advisor about a trip you are considering, or browse our destination guides for a specific country.
Verify Before You Travel
Guidance on public Wi-Fi is published by the U.S. Federal Trade Commission. Local restrictions on internet services and on VPN use are published per destination by the U.S. Department of State and assessed independently by the U.K. FCDO.
Travel requirements, health guidance and safety conditions can change. Always confirm current requirements with the appropriate government or official authority before departure.