Pack your shoes, helmet and pedals in your carryon bag…worst case scenario you can get a cheap pair of shorts when you get to your destination but still get some rides in before your lost luggage arrives.
Kit it self can dry quickly, so minimize how many jerseys / shorts you bring…wash them when you take a shower and hang them to dry and you’ll be ready by the time you need them.
Roll your kit pieces when packing them vs. folding them…takes up less space, especially bibs.