Anytime you book through a third party like orbitz rather then direct (I love to do this, even orbitz knows cos you can't earn their bucks on vacation packages)
You do not get extra % for cashback in travel cards--so you're outta luck there. If there's a card that will let you get anything over 2% that isn't related to the site (like if orbitz has a cc) then i would love to know too.
However, there's a way to get extra $$ and it doesn't even have to do with cc.
Ebates--check em out. You just need a name and addy to give them so they can send you a check for your cashback.
Orbitz is often up to 10% you can earn. Last trip I got almost $30 back for a trip from top of one coast to the bottom of same said coast..altogether I spent about 500-600 and I used my credit card on orbitz so I got cashback from my cc too.
The way it works is you give credit to ebates for referring you to orbitz. Orbitz give them xx and they in turn give you x.
This is like how Pinterest makes $$ but instead of giving any back, they make their site free to use and unseemingly ad free.
Once you take the trip ebates will credit your account, they cut you a check every quarter.
So instead of 1-5% often you can earn more then that back with ebates
great for those who only use debit cards too but is missing out on cashback since the banks revoked it after the 08 frank/dodd