Can you buy a one way ticket to Jamaica?

Yes, it is generally possible to purchase a one-way ticket to Jamaica. Please note that some flight policies and travel regulations may permit or restrict one-way ticket purchases, depending on the airline and the specific route you are considering. If you are planning to travel to Jamaica, it's a good idea to check with the airline, flight consolidators, or travel agencies to verify the availability and specific conditions for a one-way ticket purchase.