Unbreakable VPN Connection for Airport Wi-Fi: Combine Wi-Fi and 4G / 5G Cellular with Speedify
An airport VPN runs into the same wall on every layover: airport Wi-Fi almost always sits behind a captive portal (the sign-in page the airport network makes you accept first), and most VPNs cannot display that page, so you browse unprotected or not at all.
Speedify is an app that encrypts your internet traffic and runs it over the airport Wi-Fi and your phone’s 4G/5G cellular connection at the same time. If the sign-in page will not open at all, see how to load the airport login page.
Below: why airports use these sign-in pages, how to set Speedify up for airport Wi-Fi in five steps, and what Speedify changes: the sign-in page opens, and your uploads and downloads keep moving on the phone’s 4G/5G cellular when airport Wi-Fi sags. Those gains need two internet connections; on airport Wi-Fi alone, Speedify works as an encrypted VPN and can be a little slower.
Use Speedify on Airport Wi-Fi with a Captive Portal in Five Steps
- Download Speedify on your laptop or phone before you leave for the airport. Speedify runs on Windows, macOS, iOS, Android and Linux.
- Open Speedify and create a free account (the free tier includes 5 GB per month; Linux needs a paid plan), or sign in.
- On a phone, tap Allow when your phone asks to add a VPN configuration, and keep 4G/5G cellular turned on.
- Join the airport Wi-Fi. When Speedify detects the captive portal, it shows a notification; open it and accept the terms or log in on the sign-in page.
- Once the sign-in is done, Speedify adds the airport Wi-Fi to your connections and encrypts all your traffic, using the Wi-Fi and 4G/5G cellular together.
Why Airport Wi-Fi Uses a Captive Portal Sign-In Page
Many airport Wi-Fi networks make you sign in or accept a page before you can use the internet. That page is called a captive portal: a web page shown to newly connected users before they get broader access to the network. The airport uses it either to make you log in with your details or to make you accept its terms and conditions.
Free airport Wi-Fi is not automatically safe. Captive portals are to blame for a number of security problems, especially with HTTPS websites. HTTPS is meant to prevent traffic interception, alteration and impersonation by a third party, but captive portals work by doing exactly that: they intercept and alter the connection between you and the site you are trying to visit. On an unencrypted HTTP connection you would not even notice. On HTTPS sites, the browser detects that something is hijacking the connection (similar to a man-in-the-middle attack) and shows “untrusted connection” warnings about fake certificates for sites you expect to be safe.
Airport Wi-Fi Not Working or the Sign-In Page Not Showing
If the airport Wi-Fi says connected but nothing loads, the sign-in page has usually not opened. Forget the network and join it again, open any web address that starts with http:// in a new browser tab, switch off any custom DNS (Private DNS on Android) while you sign in, and pause your VPN or let Speedify open the page for you. On Android, the sign-in page opens in a built-in system app called Captive Portal Login; it appears whenever a network asks you to sign in. If the page still never appears, use your phone’s 4G/5G cellular connection instead.
How to Stay Safe on the Airport Wi-Fi Network Using a Captive Portal
You can create a safe environment for your devices when connected to a free airport hotspot connection. All there is to do is use a VPN on your device.
A virtual private network (VPN) encrypts the traffic between your device and the VPN provider’s server, so other people on the airport network, and the network’s operator, see only scrambled data going to one server.
The problem is that VPNs and captive portals barely work together. The airport network blocks internet traffic until you sign in, while a VPN sends every request, including the one for the sign-in page, into its encrypted tunnel to the VPN server, which the network has not let through yet. So the sign-in page does not display or does not work. On iPhones, iPads and Macs, see how to fix Apple captive portal issues.
The usual workaround is to disconnect the VPN while you sign in through the captive portal, or not to use the VPN at all, and both leave you exposed for a while. Speedify handles the captive portal for you, so you stay protected on airport networks that use one.
How Speedify Handles Airport Captive Portals
Speedify is an app that combines Wi-Fi, 4G/5G cellular, Ethernet, Starlink and satellite internet connections and encrypts your traffic like a VPN. On a captive portal network, Speedify works like this:
- When Speedify detects a captive portal, it automatically moves the traffic to and from the login page outside of the encrypted VPN tunnel.
- Once you successfully log onto the network, Speedify moves that direct traffic back to the VPN tunnel.
- You can also use the split tunneling feature (Bypass) for specific services, which sends their traffic directly from your device, outside the encrypted Speedify tunnel.
With Speedify on two connections, you do not have to choose between security, speed and stability at the gate: you can stream movies, hold business conference calls or play online video games.
With Speedify, an Internet connection dropping does not end your call or download: Speedify keeps you connected automatically by moving your traffic to the connections that still work, and your public IP address stays the same, so the call or a logged-in session does not see a new address.
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Speedify combines Wi-Fi, 4G/5G cellular, Ethernet, Starlink and satellite into one faster, more reliable internet connection. Free to try: 5 GB a month with a free account. No credit card required.
🚀 Speed
Faster uploads and downloads, because Speedify uses all your internet connections at once.
📶 Stability
If one internet connection drops, Speedify moves your traffic to the others in milliseconds.
🔒 Security
AES-256 encryption on every internet connection, on any network you join.
15M+ downloads worldwide. 75K+ five-star reviews on iOS and Android.