Sure. They may wanna charge you a change fee though.
If the bags are tagged to go all the way through then yes.
If my current PNR is EWR-HNL, would it be possible to add on HNL-LIH or no?
the issue is they won't tag them all the way. you have to manually recheck them, per reports of other DDFers.
I'm a cohen and i'm booked on UA 84 I united can only confirm four hours before the flight if they have a coffin in cargo my Q is how likely is it to get ua rep to book me on a different flight if i need to?
If it's not available, 0.
you mean if I X XN is not available? UA will not put me as displaced passenger
Why should they?You really think they give a damn that you are a Kohen?
Is there any way to make the calendar show direct flights only?
No