Lindsay Lohan Checking in for THE KARDASHIAN WEDDING

8/20/2011 12:30 PM PDT

Lindsay Lohan -- Checking in for The Kardashian Wedding

Lindsay Lohan arrived at a hotel in Santa Barbara in the wee hours of the morning as she gets ready to attend to the Kim Kardashian wedding today.

Sources close to Lindsay tell us the reason why she showed up to the hotel at 2:30 AM ... her mom Dina arrived on a late flight from NYC.

Dina and Lindsay are both going to the wedding today (the families have been tight for a while) and we're told they're super excited to be a part of the wedding.