On many overseas flights operated by foreign carriers, if you’re traveling business or first class, it also means you have access to their lounge.
But in the US, there’s a misconception that if you’re flying in the front of the plane you can go to the lounge, but you have no such privileges.
A first or business class seat on American, United or Delta does not get you into the lounge.
And it has nothing to do with where you’re sitting on the plane.
If you’re carrying a premium credit card — American Express Platinum or Chase Sapphire Reserve, you can visit their lounges — if they’re not overcrowded by the time you get there.
But the only real perk of flying first or business on US carriers is that you get to board in the first or second group.