buy a one-way ticket

“I just had to buy a one-way ticket. I bought it and I left.”

"Why did he do that on that day he went missing? What did that mean? Why did he take his wallet with him? Why did he buy a one-way ticket?"

It’s still adventure — just controlled adventure, with brightly marked life-jacket bins and plastic dispensers labeled “sea sick bags” hanging on the walls, but nevertheless an excellent tonic for those times when you feel itchy and stifled but haven’t gotten desperate enough to throw a dart at a world map and buy a one-way ticket to wherever it sticks.

Buy a one-way ticket to San Francisco for January 2021 and wink three times at her caucus?

Will I buy a one-way ticket off this crazy thing and set myself free?