Originally Posted by
dbndb
I have a multi city ticket for AMS - CVG (flight was in August), CVG - CDG on December 17th and CDG - AMS on December 21st. Will I be charged anything if I decide to skip the CDG - AMS flight and take the thalys back to Amsterdam instead?
As long as it's your last leg you should have no problems skipping it, just don't make it a habit, some airlines have been known to keep track of pax that regularly skip legs. Please note that what you are planning to do is technically against the T&C of your ticket and in theory the airline could re-price your ticket but as far as I know KL never done that (or at least it didn't make it's way to the media or FT).
If you still have some legs after your skipped leg it will automatically be cancelled.