If you have a Hotwire account, click "My Account" at the top of any page. There, you'll see all your activity including profile, past trips, active trips, and saved searches.
Don't have a Hotwire account? Clicking "My Account" will take you to the sign-in page. Enter your Hotwire itinerary number or the last four digits of the credit card you used for booking. To see multiple transactions, you will need to enter the specific itinerary number or credit card number for each one. See also: Creating and accessing an account