the only site I've found that gives you the 'final price' up front is china airlines
I can't remember buying a ticket without the dreaded fees and taxes being added on after a couple of clicks
I have many times clicked on 'the lowest fare' and had it come up no longer available or 'this fare has changed since it was published last"
with the airfare game it moves very fast and they can change within hours............I 've been told the lowest fares are published sometime monday nights (EST) for tuesday offer....
I think there is something to that......
best of luck and have fun in Lima......



