Some airlines offer prepaid travel money cards so the money you spend on these cards can earn you reward points. (moneysmart.gov.au)
There's also a currency exchange on - site, meaning you needn't worry about running out of travel money. (loveholidays.com)
Some airlines offer their frequent flyers the ability to opt - in to a prepaid travel money card linked to their frequent flyer account. (moneysmart.gov.au)