I'm an Indian passport holder with a UK Short Stay "C" visa issued in the US. My visa does not have a BIVS endorsement. I understand that I can travel to Ireland without a Ireland visa, so long as I land in the UK first – using the [the Short Stay Visa Waiver program][1]. 

My question is: Is there a minimum amount of time I need to spend in the UK before heading over to Ireland? 

My preference is to land in LHR, complete immigration, and take a flight to DUB without leaving the airport. Want to make sure that there is no issues with that.

Thanks in advance for your help. 


  [1]: https://www.irishimmigration.ie/coming-to-visit-ireland/short-stay-visa-waiver-programme/