I bid on an Amtrak upgrade and went from business class to first class. My upgrade cost $95 (on top of my $57 business-class ticket) and came with lounge access and food. The Amtrak Lounge was elegant ...
Before my trip from Sydney to London, I upgraded my British Airways ticket to first class for $500. The 22-hour journey gave me access to VIP airport lounges and the airline's new first-class suites.