Yes, United Airlines Terminal IAH passengers can easily check in and use a mobile boarding pass. United’s app allows you to check in for your flight up to 24 hours before departure. Once checked in, you can download your boarding pass to your smartphone, which can be scanned at security checkpoints and when boarding your flight. The mobile boarding pass also updates with any flight changes, gate assignments, or important notifications, making it a convenient choice for travelers on the go. Mobile boarding passes can also be stored in apps like Apple Wallet or Google Pay for quick access. For those who prefer paper boarding passes, self-service kiosks are available at the airport, or you can request one at the United check-in counters.