Log in or enroll in Continental's OnePass Frequent Flyer Program.
Move your cursor over the "OnePass Frequent Flyer" tab at the top of the screen and click the link for "Earn Miles" that will appear below it.
Click "Continental Airlines" to see the page for Continental mileage information.
Scroll down to "Missing Mileage Credit" and click on the Mileage Credit Request Form link to reclaim your missing miles. Enter your OnePass number and the ticket number(s) shown on the ticket stub of the missing flight(s) in the spaces provided.
Scan and email or copy and send your ticket in to the Continental OnePass service center to request credit from partner airlines.
Log in or enroll in Continental's OnePass Frequent Flyer Program.
Drag your cursor to the "Reservations" link at the top of the page and click the "Change/View Existing Reservations" link that appears below.
Enter the confirmation number you received when booking your flight and your last name to link the flight to your OnePass membership. You will receive mileage credit for the flight after you fly.