United Airlines Check-In: Online, Mobile App, and Airport Guide
United Airlines check-in allows travelers to prepare for their flights online, through the mobile app, or at the airport. Online check-in generally opens 24 hours before scheduled departure, allowing eligible passengers to review their reservations, confirm available seat assignments, and access their boarding passes. Before starting, keep your confirmation number and passenger details ready....
English
Arabic
French
Spanish
Portuguese
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek