Originally Posted by ddrost1

i have found the change flights link to be the most flexible, but often you have to use multidestination to get what you want, and you have to be prepared to shovel out a small add collect. i always use EF to find availability segment by segment then go onto UA and dump it into the change flight link with multi destination. i am 3/3 using this approach, did have it error out once and that was circumvented with a phone call.