You can transfer your Citi Thank You rewards points to participating travel loyalty programs. One transferee is Aviance LifeMiles Citi Thank You rewards transfer to Avianca LifeMiles at a rate of 1:1, so 1,000 Thank You points would yield 1000 LifeMiles..
There is currently a limited time offer through April 13, 2024, where you can transfer ThankYou points to LifeMiles and receive 25% bonus TrueBlue points. So now you will get 1250 LifeMiles when you transfer in 1,000 Thank You points.