What level of G-force does our body experience when we are traveling in a passenger plane?
I can't find solid references, hopefully someone will come along who can.

A 30 degree bank, the most you will normally experience, exerts a force of 1.15g, or 0.15 greater than normal acceleration you feel when motionless.  The autopilot is generally designed to begin descents and climbs with no more than 0.25g and are generally calibrated to manoeuvre in 0.25g increments.  A solid rotate or a firm landing might generate a bit more.

It's reasonable to work on a range of around 0.75 to 1.25gs. Anything more than that would be uncomfortable for many people.  You should only experience g outside that sort of range in heavy or severe turbulence.