I have an unused $2400 ticket with UA, they will only allow me to rebook a ticket ($250 fee) in my name. However I can purchase a ticket for myself & any leftover $ will be issued to me as a voucher for purchase of anyones tickets. I therefore want to buy the cheapest possible ticket from/to anywhere (not to use) so that I can get the voucher. Any ideas how to find the cheapest ticket? TIA