Here's a tip for frequent flyers:
If you can't catch your flights for some reason and you don't have a travel insurance, you could try to sell them at www.jumpflight.com You can post your flight tickets for free, with some luck you will find a new owner for them and save money

Isn't this a violation of airline and TSA rules? Someone buys your ticket, they try to check in with your name on the ticket, but their own government-issued photo ID. Or they get to security, with a boarding pass with your name on it, but their own photo ID. The TSA agent isn't even going to let them get into the line.

Wouldn't you have to be ignorant of the rules to buy a ticket at this site?

Yeah ... that may (possibly) work with European LCCs but not on any "real" airline and definitely not in the US.

1. You can't chagne names on most tickets including FF tickets.
2. When the airline catches you (and they monitor these sights) then they take ALL your miles and cancel the ticket. All FF programs say you can't sell the miles/tickets.

The name on the ticket needs to match the name of the passenger. How do you deal with that to make this work?

On my domestic flights in New Zealand recently no one checked any IDs. I had a printout of my receipt with bar code. I scanned it at self-check-in, got boarding pass and checked bag, went through security, and handed pass to gate agent. No ID.

Maybe so, but that's not the way flights operate most places. Anyone who buys a ticket from this site had better be prepared to be turned away at the airport. Then what do they do?

Kay2 - There was a time when there was no such thing as 'going through security' on NZ domestic flights. You'd check in and walk back to the gate...period.

I was on a domestic flight with NZ Prime Minister Helen Clark once. She sat right across from us. No security.

I suspect those days are gone for good.