Like the popular My Trips for Windows Phone it lets you take your TripIt.com travel plans when you when you travel. It syncs them to your computer so that you have access to them whenever you need.
My Trips shows you a list of your upcoming trips, flight, lodging, car rental and other travel plan information. Additionally My Trips will give you detailed flight information such as departure and arrival dates, times and locations, confirmation numbers, airline information, passenger information & much more.
Go to the Windows Store and take a look!