Get a 15% transfer bonus when you transfer Citi ThankYou to Cathay Pacific Asia Miles.

Best for booking Cathay Pacific metal long haul premium flights which may only be made available to its own members. Also great for booking long haul in a premium cabin with a short connection in a lower class of service which prices the entire trip lower than just the primary premium long haul segment.

For other oneworld flights, other programs (like the new Finnair Avios award chart) may be better, especially when there are transfer bonuses to other Avios programs.

Cathay Pacific also FINALLY added the ability to book American Airlines flights online, which can also be a good option depending on the route.

Note that Cathay Pacific Asia Miles expire after 18 months without activity but simply transferring 500 or 1,000 miles before 18 months will reset the clock.