Originally Posted by
12boy
Go to a thrift store and buy the largest suitcase that will meet your airline's max size. A hard shell type would be better in terms of protecting the bike. Take a tape measure and make sure the interior dimensions fit. Or, perhaps a friend or relative has one to borrow.
Thanks for that recommendation. This was kind of my plan B already. I'm wondering if there are collapsible hard-shell suitcases purposed for the Brompton.