Do not be too sure that alls well if you are checking in at Singapore airport. I was charged S$100 to have my name changed on my boarding pass. My story:

When I made my Online booking at a US-based website, I entered, as prompted, my name First Middle Family accordingly.

The boarding pass printout showed my name as First Middle Family - fine, I thought.

But the Supervisor at Changi Airport told me my name must be exactly as shown in my passport: Family Middle First. He claimed that it was a Singapore Immigration requirement but declined my request to speak with an Immigration Officer.

He refused to let me leave the check-in counter until I paid the S$100.

So...my new boarding pass had my name as Middle First Family. "But that's not exactly as shown in my passport" I said. He ignored me, and walked away.

Recap:
Online booking: First Middle Family
Boarding Pass: First Middle Family
Passport: Family Middle First
$100 Boarding Pass: Middle First Family

"A great way to fly"!