‘Prices are up for flying and accomodation prices stay the same. Provided you do not need extra gas/electrics (airco…)’ according to my oldest who’s searching high and low for a sun-beach holiday somewhere in Europe in late August.
Pretty volatile if you ask me. Count that in when you split costs.
Rentals are expensive as well. Fleet owners sold a lot during Covid and new cars are hard to find. Although that will not be a problem in September, October, I think.