I have a friend who is married and has triplets. She, her husband and the kids are trying to get from Newark, NJ or Philadelphia to Honolulu some time next year. She asked me for advice as to which credit cards to get in order to get enough miles to pay for the r/t tickets for five people.

I was thinking that she and her husband could apply for the Alaska cards but at 40,000 miles a person for the rt that would require a lot of churning. Better ideas anyone? Thanks for any help.