Point transfers
While not all, some points are able to be transferred to other programs. The two most common are Starwood points (SPG) and American Express Membership Rewards (MR). Chase Ultimate Rewards (UR) also transfer.
Transfer partners:
MR: CO SQ DL BA AC F9 (Please add)
SPG: AA US DL EK LA BA AC (Please add)
UR: CO (Please add)
Transfer times: As a general rule, MR transfers are instant with a few exceptions. Exceptions: SQ:(please complete) NH:(please complete)
SPG transfers can take anywhere from a single night to a month, depending on the airline.
Specific airlines: AA: UA: EK: US: LA: up to a month DL:
Transfer rates and fees: There is no fee for SPG transfers. There is a fee for MR transfers made to CO and DL. The fee is $6 for every 10K transferred, and is prorated. The maximum fee is $99. There is no fee for UR transfers.