In addition to using Delta SkyMiles for Delta flights to Australia, you can also use Air France / KLM Flying Blue and Korean Air SkyPass. (upgradedpoints.com)
The Gold Delta SkyMiles ® Credit Card from American Express rewards loyalty with flexibility. (nerdwallet.com)
To earn the points for this trip, Emily and her husband each signed up for a Platinum Delta SkyMiles Credit Card from American Express. (upgradedpoints.com)