Can I use global entry in London?

Global Entry is a U.S. program that allows expedited clearance for pre-approved, low-risk travelers upon arrival in the United States. It does not provide benefits for travel into London or other international destinations. However, if you are a Global Entry member traveling to the U.S. from London, you can use your Global Entry membership upon your return to expedite your entry. For travel into the UK, you would need to follow their Immigration processes.