All Bilt members will receive a 50% transfer bonus on September 1, 2024 when they transfer their Bilt points to Avianca LifeMiles. Bilt points can be converted in increments of 1,000.
Avianca is a Star Alliance partner that does not pass along fuel surcharges, however:
Keep in mind that Avianca just devalued their program.
Also see: Downsides of LifeMiles program.