American Express is currently offering a 30% transfer bonus of Membership Rewards points to British Airways. I’m not sure for how long the offer will be valid, but for certain types of awards, this has killer potential. For example, an award from North America to South America in business class on a single airline (like LAN) is usually 80,000 miles, so this knocks the price down to just over 60,000 Membership Rewards points for such an award.
To add to this, it’s also worth noting that British Airways is targeting certain Signature Visa cardmembers with a 20% mileage refund for an award booked entirely on British Airways metal. I wasn’t targeted, but if you were, these two promotions could work quite nicely together, especially if you’re also throwing in a 2-for-1 companion certificate.