If I apply and approved for Amex plat today, would there be enough time to charge swa $99 fares? Is there an instant number offered and does swa post in two days usually?
1) if your approved instantly,
2) 50% chance you will get a instant number (or have your card overnight-ed)
as long you charge the card before Jan 1st your still going to get the credit.
now regarding the actual charge if it will be reimbursed is YMMV.