Question regarding transit visa
 

My wife is traveling from AMS to JFK via LHR (KLM/Delta). It sounds like she doesn't need any type of visa as she has a green card which was issued after '98. Also, she will not leave the terminal and doesn't need to transfer to another terminal. The layover is 3 hours. Has anyone any insight if she would need a transit visa? Anyone with prior experience with a similar situation?

Thanks.

Is your question whether or not your wife will need a transit visa for the UK? The green card she holds means nothing there, but rather the passport she carries.

KL and DL both use Terminal 4, so the connection is a matter of disembarking from one flight, going through Security at T4 Flight Connections then through to Departures. She will not go landside at all at T4 so a transit visa shouldn't be necessary unless she wishes to leave the airside zone, as it is at that point she will go through passport control. It does depend on the passport your wife holds, though, so see below for the official information.

http://www.ukvisas.gov.uk/en/doineedvisa/

Actually, that's not true. A US Green Card does make a difference. A passenger holding a valid US Green Card (or a number of other instruments indicating the right to enter a 'friendly' country) is exempt from the requirements for a Direct Airside Transit visa.

So as long as she stays airside she should be just fine.

Thank you, marlborobell, and my apologies to you and to rikhey. The bookmark I had was out of date and I didn't think to check for more recent information. :(

Thanks for all your help guys. I just wanted to know if anyone with a greencard has ever been stopped.

As a warning, UKBA have been issuing a significantly higher number of "DO NOT BOARD" notices to carriers transporting TWOV cases that would prima facie qualify for the DATV exemption since the threat level was raised to "SEVERE" last week.

Most of these cases are for previous violators of UK Immigration law, failed refugee claimants in other EU states or those who have been refused UK visas in the past. If you fall under those categories, expect additional scrutiny despite your immigrations status elsewhere.