Open-ended destination is great, but I've sometimes wished for open-ended source. My usecase is something like a casual multi-stop trip, where you have an even

Open-ended destination is great, but I've sometimes wished for open-ended source. My usecase is something like a casual multi-stop trip, where you have an eventual destination in mind, but would like to save money, or see where else you can go along the way for a similar amount of money. I've worked around it by manually checking nearby routes, or getting a feel for options with open-ended reverse flights and then searching the reverse again.