if you leave your company where there is a 401 K in place, how long does it take to get the check sent to you?

It can take several weeks.

It's much better to put the money into a rollover IRA. If you take it out, you'll use a lot, probabl 25% or more, to taxes and penalties.

The check should NOT come to you.

Hopefully you did an IRA rollover.

If the check comes to you (and you are under retirement age) you are going to have a nasty tax and penalty problem.

It can take 6 weeks. You have to make the request, they have to sell the stocks, let them settle, then write you a check, then mail it to you.