Hi. I'm sorry if this issue has been already discussed here, but I wasn't able to locate threads. If I use US miles to book a UA intra-asia flights, is the ticket going to be a paper ticket or an e-ticket? Any answer will be greatly appreciated.

Should be an e-ticket.

Should be an e-ticket.

thanks. ^ If the ticket is going to be an e-ticket, can I change the date of the return flight after the outbound is already used? For UA flights using UA miles, it is no problem and I think it's same for US flights using US miles, but I'm wondering whether it's applicable for UA flights on US miles as well. Thanks.