Etihad is offering a 25% bonus for transfers from one of their partners to Etihad Guest. This bonus includes Citi ThankYou points which normally transfer at a 1:1 ratio. Under this promotion which runs through the end of the year, ThankYou points will transfer at a 1:1.25 ratio.
Cheap American Airlines Redemptions
Etihad is a partner of American Airlines and has a very good award chart for their flights. For example, a one-way ticket between North America and Europe is 20,000 miles in coach or 50,000 in business class. Considering the transfer bonus, these flights would only cost 16,000 or 40,000 ThankYou points respectively. Etihad also doesn’t seem to charge fuel surcharges, meaning you should only have to pay the taxes.
For the full details of this bonus along with a descirption of how to search for award space and book tickets with Etihad Guest, see: this MileValue post.