Single Ticket Global Travel

Hoping somebody on the forum is familiar with this program - While in Europe, I spoke to a woman from the US who was traveling on a ticket from an airline that she spent a fixed amount on, which let her travel from location to location, so long as she was going west to east, ultimately returning to her home destination.

I was probably a bottle and a half of wine in at the time and don’t remember the airline or branding of the ticket.

Does this sound like something anybody else here has seen

Star Alliance:

Sky team:
https://www.skyteam.com/EN/round-the-world-planner

One world:

This is why I love WB. Am gold in sky team, so will play with that link. Thanks.

Historically called round the world tickets. Most have a restriction on the total number of flights, but also no backtracking. Historically they weren’t much more than 3 single tickets, so if you were already planning two separate locations, this was often a cost-effective way to add in a 3rd and 4th location.