I spent 10 hours in Air France's most exclusive first class. My flight was so good I felt like I was on a private plane.

My Air France La Première flight from Paris to Houston cost nearly $15,000 for a one-way ticket.

Amber Gibson

Air France's La Première first class is widely considered one of the most exclusive commercial airline experiences in the world, with only four suites per aircraft in a 1-2-1 configuration.The airline flies La Première to just a handful of US cities, including New York, Washington, Los Angeles, San Francisco, Miami, Atlanta, and Houston.So when I recently found myself traveling from Paris to Houston, I decided to give Air France's La Première class a try on my 10½ -hour flight.At nearly $15,000 for a one-way ticket, this was my most expensive commercial flight yet. Here's how it went.

I was dropped off at the La Première check-in desk, then escorted to the lounge.

I didn't have to navigate the airport on my own.