UK Government policy requires that everyone travelling from/to the UK must provide passport and other details for security reasons. If you are travelling to/from/via the USA we are unable to issue your tickets until the details have been provided for all passengers. Airlines require tickets to be issued as early as 4 months before you travel so it’s important you submit the information as soon as possible after booking. If you are booking within 4 months of departure please provide the details immediately after booking.
For security reasons the portal will time out after 15 minutes so we suggest you have all required details to hand. Depending on the time taken to enter the data you may have to revisit the portal a second time to complete all passenger details.