I was wondering the same thing. I'm also flying into Santiago and will arrive at 11:10. Thanks for the link, Don.
From the webpage:
"
Buses run every 20 to 30 minutes all days of the week between 07:00 hours and 23:00 hours. One-way tickets cost only € 1.00 and are available from the bus driver. Children up to the age of 18 can travel for a reduced fare and pay € 0.55 for a bus ride from the airport to the city or vice versa. You can also buy a ticket for 10, 20 or 30 bus rides called Bono. If you choose this option, the price for a single journey (maximum 60 minutes) is only € 0.60. A Bono card can be bought on board the bus and costs € 3.00, this amount will be refunded when the card is returned, but only if it’s in good condition. Please consult website and timetable bus line 6 for more information."
Looks like there's just enough time to catch one of the last buses to the center of Santiago.
I was planning to get a private room so I won't disturb people at midnight when I get in, but I haven't found a place with a decent price. Seems prices are up since I was there in March. Maybe I'll take another look at The Last Stamp. I've stayed there before and always liked it.
Cat