If you are unable to locate your original "Travel Document" e-mail or event within ONmail simply login to Orbitz and go to "My Trips" Under "Trip Tools", click e-mail itinerary".
Once you have clicked the link "E-mail itinerary":
Enter your ONmail e-mail address in the form field (you can also add more e-mails separated by commas).
Enter in any note in the given field (optional).
Click "Send"