مش هتحتاج فيزا. الكلام ده مش عن تجربة ولكنه كلام صريح على سايت الحكومة الإنجليزية
Transiting without a visa
You might be eligible for ‘transit without 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’re travelling to (or on part of a reasonable journey to) Australia, Canada, New Zealand or the USA and have a valid visa for that country
- you’re travelling from (or on part of a reasonable journey from) Australia, Canada, New Zealand or the USA and have a valid visa for that country
لاحظ إن رحلتك لأمريكا لازم تكون
"leaves on the day you arrive or before midnight on the day after you arrive"
/Check if you need a UK visa - GOV.UK