You can cancel the lines that are out of contract without having to pay any ETF. However, as Verizon does not prorate the monthly service charge, it might be advisable to cancel on or slightly before the cycle end date as you will be responsible for the service charges for the full month regardless.
Note that each line is treated separately with its own contract end date.
You will have to call Customer Service or visit a Verizon corporate store as you cannot cancel online.
If you are going to port any of the lines to another carrier, do not cancel them first as you will lose your phone numbers (if this is important to you.) Simply go to the other carrier and have them initiate a port request.
Thank You, I just can't believe how their CSR's are permitted to speak like that. I only have one more month left on two phones and the guy my husband s/w this morning said to him, there is no one above me lol so my husband said, you mean you're the CEO? He said to him, I am flagging your account and writing that no one is to cancel your account. I have a month left, I've been calling your company for weeks with no resolution, another month because you don't care about your reputation isn't going to kill us.