I know there is another question about this (hopefully the one I saw is the only one) but mine is a little different.
Using irssi from the command line (without X), is there a way to copy and paste URLs so I can open them in elinks?
You could use screen to run irssi in. This would allow you to use screen's copy mode (triggered using Ctrl-A Esc).
See http://web.mit.edu/gnu/doc/html/screen_11.html for reference.
I've also found the following script, which allows to open the last URL in a browser: http://scripts.irssi.org/html/urlgrab.pl.html