https://www.siliconvalley.com/2023/03/17/two-one-way-flights-or-one-round-trip-which-is-better/

Booking a flight involves navigating a maze of decisions. Is it better to fly with a budget airline or full-service one? How about basic economy versus regular economy? And would you prefer pretzels or a cookie?

Choosing between a single round-trip or two one-way tickets is the most basic decision and — you might be surprised to learn — one of the more nuanced.