- United Airlines - Online Check-in is available up to 24 hours prior to departure.
- Need any of the following to use online check-in - Mileage Plus member with a united.com password, reservation number, credit card number used to purchase the ticket.
- Available for domestic and international flights.
- If you are traveling on more than one airline during the check-in process, you will be alerted if your itinerary permits check-in on other airlines.
- Drop off luggage at curbside check-in or with an agent.
United Airlines Tickets and Reservations - Check in Online
By Arlene Fleming, About.com
United Airlines offers check-in online, and a few of the particulars of their web check-in services:
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