Originally Posted by
jdrtravel
It varies. Most likely they will issue you a voucher in the $200 range, plus fare difference. You need to write them an email using the complaint link on the website to get the ball rolling.
OP may get a $200 voucher plus the fare difference, but it wasn't a straight downgrade, it was an IROP (likely weather) and OP accepted the fastest routing DL had left vs waiting for a flight that has C+. DL would likely consider that a voluntary downgrade...he'll likely get the difference back but extra compensation is unlikely if the cause of the delay was weather...but who knows sometimes the CC rep is feeling extra generous!