Low cost flights are not so convenient if You have to pay supplement costs to take on airplane Your climbing materials.
In that case You are forced to rent a car too.
So, if You share the costs and/or return the favour, for sure there are foreigner climbers willing to share with You their rope, crashpad, quickdraws, ...
And You can do the same with them in Your own country or everywhere You are staying.
Just use the "search members box" to "surf" and ceck 9b climbers profiles.