Quote Originally Posted by MissBlue View Post
i understand what you're saying.

However, all international airline purchases these days require you to give your passport number and TSA information at the time of purchase. So, regardless if they are separate records & locators/itineraries, all scheduled flights will still show up in the computers associated with the traveler's passport number, even if they are separate records
Can't say for the TSA but over here on leaving we don't check if a person has a one way ticket or return ticket or not, the only time someone will get any extra searches is if something flags up on normal things that you go through on way to departures, However if you are a non EU and arrive with a one way ticket you will have a few extra questions to answer,