Trips can easily be deleted within the Trip Planner. Simply open the trip you wish to be deleted within the Profile Menu.
Once open, tap the Trips Menu to reveal a delete button.
First start by opening the trip you want deleted. Next, tap your Trip Itinerary.
Once open, tap Edit on the upper right. This will bring up your Trip Edit menu which allows you to change your trips name, add a description, or delete your trip.
Delete your trip by tapping Delete on the bottom!