How to remove your TripIt account
An itinerary is just a posh word for ‘travel plan’. You had enough? Be logged in and use the removal link named here.
Direct removal link: https://www.tripit.com/account/delete
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for TripIt using a third-party login such as Facebook or Twitter, you probably want to revoke all access from TripIt. Click here to find out how.