In reply to Andypandyroo: On Easy Jet there is no option for Sport equipment for climbing.
When travelling I contacted the airlines and Got 3 different answers from, class it as Golfing equipment to a "Hell no", and even a "cam, What is that?"
The airport security will have their own opinion about whats allowed and the airline may have another, then you have to play Russion roullette and hope not to get the angry security officer who will "Dispose" of anything from dangerous hair jell to a deadly rope brush.
I got a whole Trad rack and a 60 meter rope in at around 18kg.
There is no weight restriction on hand luggage so put all Guide Books and clothes inside that. Maybe buy a wedding dress Box, they are designed to fit the exact dimensions of hand luggage. Meaning you can Cram it full.
Ropes can strangle and restrain, Hex's can kill, Quickdraws can hang bodies up like meat hooks. Add a Harness and super tight foot wear and you look like an S&M Terrorist
Put it in the hold and get insured