Before leaving the U.S. while your I-485 is pending, you must apply for and receive Advance Parole. If you leave the country without Advance Parole, USCIS will automatically consider your I-485 application abandoned and deny it.

Yes, you can travel while your I-485 is pending, but only with Advance Parole or under very specific visa exceptions. Unauthorized travel will likely cause your application to be denied and may impact your future immigration options.

Traveling outside United States while your I-485 is pending is permitted only if you secure Advance Parole before leaving the U.S.