What are some tips for earning the most cashback rewards when traveling?

Take your time when choosing a cashback site, and stick to it. They often reward you with special deals and higher rewards for being loyal. This is also true for online travel booking sites that offer cashback rewards, which can often be combined with cashback website rewards.

You should also consider booking with a credit card that gives you cashback rewards (make sure that the rewards are still valid when using the cashback site).

Lastly, your aim is to maximize your cashback, and you do that by booking more through the site. Offer to book your friends and family's accommodation and flights, and allow them to pay you back later. This way you will reap the cashback rewards from their stays, as well as yours.