<p>Yes, Heathrow's WiFi is completely free, with no time limit, across all terminals. Connect to the network named "_Heathrow Wi-Fi", register once with a basic form, and you get free internet access for the entire duration of your stay at the airport, whether that is a quick connection or a long wait for a delayed flight.</p>
<h2>How to connect to Heathrow's free WiFi</h2>
<p>On your phone or laptop, open your WiFi settings and select the network called "_Heathrow Wi-Fi". You will be directed to a registration page in your browser; follow the on-screen instructions to complete a short sign-up, after which your device is connected for free for as long as you remain at the airport. You do not need a Heathrow account, a boarding pass number, or any payment details to use it.</p>
<h2>Is there a data or time limit?</h2>
<p>No. Once registered, Heathrow's WiFi is unlimited for the duration of your visit, which makes it a genuine alternative to using mobile data if you are on a limited plan or travelling from abroad without a UK SIM. This applies across all terminals, not just in specific lounges or gate areas.</p>
<h2>Coverage across the airport</h2>
<p>WiFi is available throughout the terminal buildings, including check-in areas, security queues, departure lounges and gates, so you should not need to hunt for a specific hotspot. Heathrow is also certified under the "Friendly WiFi" scheme across all terminals, which filters harmful and inappropriate content, making it suitable for family use.</p>
<h2>What to do if you can't get connected</h2>
<p>If the network does not appear, restart your device's WiFi toggle or move to an open area away from thick walls or crowds, since heavy usage at peak times can occasionally slow the registration page. If you are still stuck, Heathrow's Customer Care team can help by phone on 0808 189 1365, and airport information desks in each terminal can also point you toward the strongest signal areas or help with registration issues.</p>
<h2>Free WiFi versus paid lounge internet</h2>
<p>You do not need lounge access to get free WiFi at Heathrow; the general terminal network covers the whole airport at no cost. Airport lounges typically also offer their own WiFi as part of the lounge experience, but this is a convenience rather than a necessity, since the same free connection is available in the main terminal seating areas, cafes and gates.</p>
<h2>Tips for a smoother connection</h2>
<ul>
<li>Register as soon as you connect rather than waiting until you need it, especially if you plan to use it for boarding pass downloads or online check-in at the gate.</li>
<li>If travelling with multiple devices, each one needs to register separately on "_Heathrow Wi-Fi".</li>
<li>Save any documents or boarding passes you need offline as a backup, in case of a temporary signal drop during busy periods.</li>
<li>If you are connecting a child's device, the Friendly WiFi filtering is already applied automatically across the network, so no separate parental controls are needed.</li>
</ul>
<p>Checked 2026 against Heathrow's own internet and WiFi information page.</p>