Originally Posted by
snail
thx.
Just checked in with Virgin Atlantic. The site redirected me to delta .
No upgrade offers to premium or business seats from Delta.
this normal for delta?
(It's an 8hr flight and would like a cheap upgrade

)
Yes. DL generally does not have day-of-departure upgrade offers. For flights that are both DL marketed and DL operated, they will often have online seat upgrade offers after purchase, but pricing may not be that "cheap" and can be more than simply upfaring to a higher cabin by paying fare difference.