1-2 Months for biometrics
2-4 Months for document production & delivery

The reentry permit application (Form I-131) is filed with USCIS along with supporting documentation and the correct filing fee. Effective April 2008, all reentry permit applications include a required biometrics processing component. Each applicant must submit to biometrics processing at a local USCIS service center before his or her reentry permit can be issued. While biometrics can be rescheduled one or more times, failure to attend the biometrics appointment within 120 days of the application receipt date may cause the reentry permit to be denied.

A regular processing reentry permit application can take between 1-2 months from the time of applying to the biometrics appointment; with another 3-4 months for the actual reentry permit to be produced and mailed to the applicant. If you have a foreign passport and can travel internationally, then you can depart the U.S. after processing the biometrics. LPRs who need the reentry permit for international travel would need to wait until its products before they can make travel arrangements and depart the U.S.