welcome into

welcome someone into something

 and welcome someone in
to greet one as one is ushered into something or some place. The Franklins welcomed us into their home. Please welcome in our new members.
See also: welcome
References in classic literature ?
Now that she was engaged, the Emersons would scarcely insult her and were welcome into the neighbourhood.
Lowering the tailgate glass and dropping the rear seat opens the area even farther, while opening the gate turns the Welcome into a pickup.