Note that this is the airport in the Inland Empire of California. It’s not a Canadian airport.
Nothing on the Web site.
Fred and Robert submitted information to me about a couple of drop boxes:
At information desks in terminal 2 and 4 there are gray boxes that state “US mail drop off” where you drop your letters and postcards.
Unfortunately the terminal maps are useless and don’t have the information desks marked. I’m assuming they are pre-security.
Last updated 19 August 2018