The machine readable part of my passport used to give my last name and my middle name only. Now it gives my last name and my first name only. (This is due to change in regulations when I got a new passport. Both names appear in my passport. However, I have never used my first name.)
Before
Name: Edgar Allan Poe
P<USAPOE<<ALLAN<<<<<<<<<<<
Now
Name: Edgar Allan Poe
P<USAPOE<<EDGAR<<<<<<<<<<<
Can I book my ticket only with my middle name (as Allan Poe) to make an international flight?
I usually book via my frequent flyer profile, which I set up for Allan Poe
. (The name can't easily be changed in the profile and I prefer to travel on my middle name.)