OMAAT offers a referral bonus to anyone who has been approved by using the links below. This is in the interests of full disclosure. These are the best public offers we found (terms apply). These opinions are solely the author's and not the views of any bank, credit card issuer or airline. They have not been approved or endorsed by any entity. For more information about our partners, please see our advertiser policy. Thank you for your support!LifeMiles just launched its latest promotion to earn miles. Instead of offering a bonus on bought miles, LifeMiles offers a bonus when you transfer LifeMiles into another member.Transfer LifeMiles to receive a 115% bonusLifeMiles offers a 115% bonus on LifeMiles transfers to other members through Friday, August 20, 2021. To see the offer, you must log in to your account. I cannot guarantee that everyone will be eligible. Based on the accounts I manage, it seems to be the standard offer.This bonus does not apply to miles transferred between LifeMiles accounts. For example, this does not apply to the transfer of flexible points to LifeMiles. You can't transfer miles that you don't have, so this is only applicable if you have a LifeMiles mileage balance.LifeMiles charges 1.5 cents per mile for each transfer, and you can transfer up 75,000 miles per calendar year (before the 115% bonus). The cost of transferring 75,000 miles would be $1,125 and you'd get 161,250 miles total in the account to which you transfer.It's almost like earning miles at 1.3 cents per mile (since you generate 86,250 miles for $1125), and then being able consolidate miles into one account.This is a good price and competitive with the usual cost LifeMiles sells miles. This deal is great if you want to consolidate miles in one account. It can also be used as a way to generate miles.Use the correct credit cardYou could save even more. This is because LifeMiles handles all your mileage transactions, which would be considered airfare spending. You might consider one of these cards to make your purchase. They offer bonus miles for airfare spending.5x Membership Rewards points for every dollar spent directly on airlines or through Amex Travel. Up to $500,000 per year. The Platinum Card by American Express. Learn More 3x Membership Reward points per Dollar spent with airlines American Express Gold card Learn More 3x Ultimate Points per Dollar spent on airfare Chase Sapphire Reserve. Learn More 3x ThankYou Points per dollar on airfare Citi Prime Card Learn More 2x Ultimate points per $1 spent on airfare Chase Sapphire Preferred Cards Apply NowIf you earn 5x points for every dollar spent and value these points at 1.7c each (as I do), then that's 8.5% return. This basically makes the cost per mile 1.19 cents.Is it worth it to generate LifeMiles at such a high price?Avianca is a Star Alliance member, which means that you can redeem LifeMiles for all Star Alliance airlines. This is what makes this program so special. Here are some examples of premium cabin redemption rates. There are no fuel surcharges for any awards.US to Europe Business Class - 63,000 MilesFirst class airfare from the US to Europe costs 87,000 milesBusiness class 78,000 mile flight from the US to Southeast AsiaNorth Asia to the US in first class: 90,000 milesThere may be promotions for redemptions that offer additional value.I don't speculatively purchase points. However, if you have a specific purpose in mind, this could be a great deal.Ive redeemed LifeMiles for ANA first classLifeMiles may not have the same awards availability as Star Alliance partners in all cases. This could be for good or ill. Sometimes the program does not have the same access to partner awards as other airlines. In other cases, the reverse is true.It is why I recommend that you do some dummy award searches prior to acquiring miles in any program. This will allow you to get an idea of how award availability matches your needs.I have redeemed LifeMiles to Lufthansa business classBottom lineLifeMiles offers bonus miles for transferred miles a few times a year. This could be a great deal. It is worth it to be able generate miles for as little as 1.3 cents per (or possibly even less if you take into account credit card rewards).Personally, I would only use this option if I had a very short-term purpose for LifeMiles, as it is rarely logical to purchase miles speculatively.Are you planning to transfer LifeMiles with a 11.55% bonus?