round-trip ticket
A ticket purchased for a passenger vehicle that grants the bearer travel to and from a particular destination (as opposed to a one-way ticket). I managed to snag a round-trip ticket to Paris for just $400. I've never seen fares that low! It takes a lot longer to get there, but a round-trip bus ticket is half the price of a one-way plane ticket.
round-trip ticket
a ticket (for a plane, train, bus, etc.) that allows one to go to a destination and return. A round-trip ticket is usually cheaper than two one-way tickets. How much is a round-trip ticket to San Francisco?