Heathrow fully supports mobile boarding passes on most airlines. You just open the airline app or your email, flash the QR code or barcode at the gate and security. That’s it. No paper, no fuss.
But—and there’s always a but, right?—not all airlines play nice with phones. For example, some budget carriers like Ryanair used to be picky about this, but they’ve largely come around. Still, double-check your airline’s policy before you leave your hotel room. A quick Google search saves you from a panicked sprint to the check-in desk.
Where it works (and where it’s a little dicey)
At security, you’ll scan your phone at the e-gate, and the screen lights up green. It’s smooth. At the boarding gate, same deal: the agent waves a handheld scanner over your screen. Easy peasy. The only hiccup? If your phone dies.
I’m not kidding—I’ve seen a guy get turned away from the gate because his screen went black. He looked like he’d seen a ghost. So, pro tip: charge your phone before you board, or, you know, take a screenshot of the pass as a backup. The screenshot works even without Wi-Fi or mobile data.