Do green cards holders need a visa for UK transit?

Question

I am a Dominica citizen holding a US Green Card and I live in the United States. I will be traveling from Chicago to France, but I have to transit 2 hours in the UK. Do I need to obtain a transit visa for the 2-hour layover in the UK? Thank you

Answer 1

The UK Government set up a pretty useful tool to check if you need a visa.

In your case, if you don't go through border control (I suppose this is the most likely):

You normally need a Direct Airside Transit visa if you arrive in the UK on a flight and leave again without passing through immigration control.

Exemptions

You do not need a Direct Airside Transit visa if you have one of the following:

(...)

• a valid USA permanent residence card issued by the USA on or after 21 April 1998

(...)

And if you go through border control:

You should apply for a Visitor in Transit visa if you arrive on a flight and will pass through immigration control before you leave the UK.

Transiting without a visa

You may be eligible to transit without a visa if:

• you arrive and depart by air
• have a confirmed onward flight that leaves on the day you arrive or before midnight on the day after you arrive
• have the right documents for your destination (eg a visa for that country)

One of the following must also apply:

(...)

• you have a valid USA permanent residence card issued by the USA on or after 21 April 1998

(...)

So, no, with a US green card you don't need a visa to transit the UK.