Valid through: ? (usually these offers are one day only)
Go through the portal for 6X, then pay with a Chase Ink card for 5X, or pay with a Discover It card offering 5X this quarter for online shopping (assuming you haven’t yet maxed out the 4th quarter $1500 spend limit).
Through December 23 11:59 PM ET, you can earn 750 bonus points by spending $175 this holiday through the Southwest Rapid Rewards Shopping portal. This is a one time bonus based on cumulative spend.