BA and IB Avios have always been every 30 days for my US-based account, thoughI haven’t redeemed for them as much this year in favor of options that are easier to use given my travel hopes over the next 2-3 years.
I am hoping the unlimited United miles sticks around for a while, even if they return pricing to normal levels.
I kind of wonder if Dynata was able to buy a bunch of bulk airline miles from select carriers really cheap in 2020 and the occasional deviation from once a month redemption is depleting excess mile inventory