United Airlines MileagePlus In 2018 launched a promo called Mile Play trying to get members to spend and fly more. They refresh these offers every few months and have launched a new one for August.
The Mile Play promotion is tailored to each select member based on his/her recent activity with United. It may require buying more business class tickets or flying a certain number of trips through October 31, 2019.
You can try your luck registering for this offer here.
Here’s one offer that a reader had received:
My account was not eligible for this (never has been) because I moved it to outside of North America few years ago.
United Airlines has offered Mile Plays for years under various names. I guess that it must be working for them?