Assuming you've been in the USA for some time on your H1B visa, then yes, you will need a visa to transit through London in your case Firstly, you can use the Gov.UK Do I Need A Visa tool to check if you would normally need one. For your case, that comes back with
Do I need transit visa if I travel via London?
You usually only need a transit visa if you want to leave the airport as you have a long layover. 3. Re: Is Transit Visa Required at London (Heathrow) Airport? "You usually only need a transit visa if you want to leave the airport as you have a long layover."
Do you need a visa to travel to London?
Some people may need a visa to visit, work or study in London. Visa-free travel to the UK is still in place for EEA and Swiss nationals. EU travellers can still visit the UK without needing a visa after 1 January 2021. Most people can only enter the country as a visitor for a limited period.
Can I go to London with a Schengen visa?
Can I go to London with Schengen visa? No. The United Kingdom is not part of the Schengen zone and therefore you are not allowed to enter the UK with a Schengen visa. UK residents might need to apply for a Schengen visa if they want to travel from the UK to other countries in the EU.
Do I need a transit/layover visa?
In most cases - no, you don't need a visa , even if the layover is in a third country where you would need a visa to travel to. However, there are a few exceptions, as well as a few things you should know about transiting in a third country.
Overview
You might need a visa to pass through the UK in transit (on your way to another country). Check if you need one before you apply. To get a transit...
Direct Airside Transit visa
You might need a Direct Airside Transit visa (DATV) if you: will be changing flights in the UK on your way to another country will not go through U...
Visitor in Transit visa
You might need a Visitor in Transit visa if you’re: changing flights in the UK on your way to another country going through UK border control, for...
Do you need a transit visa to cross the UK border?
One group of countries requires a transit visa for their citizens even when remaining airside (the direct airside transit visa or DATV). There is another group of countries whose citizens only require a transit visa if the person needs to cross the UK border (the visitor in transit visa).
Does Jet Airways fly from Ahmedabad to Heathrow?
What is your exact itinerary? Jet Airways doesn't fly from Ahmedabad to Heathrow. Air India does. If you're flying with Jet you'll have another connection at either Delhi or Mumbai.
Do you need a transit visa to leave the airport?
You usually only need a transit visa if you want to leave the airport as you have a long layover.
When do you have to have an onward flight?
All that is required is to have an onward flight before midnight on the day after arrival. If baggage is checked through the OP can connect airside. If it isn't he can go landside to collect and re-check it, under the visa-free concession. Reply.
Is it useful to post your exact itinerary?
It may be useful to post your exact itinerary.
Is Trip Advisor a good medium for customs?
I agree you should check the government website. And I did say usually.... I wasn’t saying always. Trip advisor isn’t a good medium for customs/border questions for this reason.
What to do if you are not going through UK border control?
If you will not be going through UK border control, check if you need a Direct Airside Transit visa instead.
How long do you have to stay in the UK to get a visitor visa?
You need to apply for a Standard Visitor visa if you’re staying in the UK for more than 48 hours.
How long does it take to leave the UK?
leaving the UK within 48 hours. not working or studying while in the UK. You may not have to apply for a visa. What you need to do depends on your nationality and whether you need to enter the UK. Check if you need to apply for a visa.
What to do if you are not a resident of the country you are travelling to?
If you’re not a resident or national of the country you’re travelling to, you may need to explain why you’re going there. You may need to provide details of where you’re staying.
What is an ADS visa?
a valid Schengen Approved Destination Scheme (ADS) group tourism visa where the holder is en route to the Schengen area; or
Do you need a visa to travel to the UK?
Nationals from certain countries* require a visa or exemption document to transit the UK, whether they are transiting airside (without passing through border control) or landside (passing through border control possibly to collect luggage or change airports).
When did the UK change its visa laws?
From 1 December 2014, the law is changing so you will have the option of either using a transit visa or using one of the ‘exemption’ documents listed below if you need to transit the UK as part of your travel.
Who makes the decision to allow transit without a visa?
The decision to allow transit without a visa is made by the immigration officer at the border.
How to Apply for a UK Transit Visa?
When applying for a UK Transit Visa, you need to complete some procedures, which we have listed below step by step:
How long does it take to leave the UK?
You will go through UK border control, for example to check in your luggage for a connecting flight. You will be leaving the UK within 48 hours. You will be exempt from the requirement of getting a UK Transit Visa only if you have a:
How many types of transit visas are there in the UK?
There are two UK Transit Visa types, which define the rules, criteria and requirements for such a visa, which are as follows:
How to apply for a DATV?
To apply for a DATV, you must have a current passport or other valid travel document. You need to provide evidence that you’re allowed to enter the country you’re travelling to, such as a: residence permit. green card. valid visa. If you’re not a resident or national of the country you’re travelling to, you may need to explain why you’re going ...
What do you need to bring to travel to the UK?
Bring your visa and documents with you when you travel through the UK.
What to do if you are not a resident of the country you are travelling to?
If you’re not a resident or national of the country you’re travelling to, you may need to explain why you’re going there. You may need to provide details of where you’re staying.
Is landside transit available?
Landside transit is not available if holding a US Visa Foil type "YY" or "ZZ" endorsed "Not a visa. Foil prepared at DHS request" nor the US Adit stamp worded "Processed for I-551" (temporary form I-551).
Can you travel to Australia with a visa?
"Passengers may make a landside transit if holding a valid visa which allows entry into Australia, Canada, New Zealand or USA and traveling as part of a journey to, from or transit through the country that has issued the visa."
Do you have to have one ticket to fly to the UK?
There is no requirement for flights to be on one ticket to qualify for the UK visa exemption - that's just a TA myth.
Do you need a visa to fly on BA?
If you are flying on BA on one ticket then you won't need to leave airside, your bags are checked through and no you won't need any kind of visa. You won't even need to change terminals.
Can a mistake in documentation lead to a denied boarding?
Best is to check for yourself (see link in post #1). Mistakes in documentation can lead to a denied boarding.
