Am considering a trip to Honolulu next year and will be rather Avios rich so my thought was to fly to LAX and tack on an award flight a few days later to HNL.

Travel to HNL will have to be on AA and I note they charge for baggage on domestic flights...can someone please just confirm how they take payment for bags...do you pay at check in or can it be added on when you make the award booking?

Thanks in advance.