I’m a foreign national flying 737NG outside US and I have green card which allows me to work in the states.
Up to what level of job would I end up with If I join a US regional at 39? Will I be able to fly shiny long haul jet before retirement as captain?

I heard flying Boeing/Airbus needs a lot of experience in US, not like many other countries where 300 hours low time pilots can be 737/320 first officers.

Since my employer is lcc with 737s only, I will have to find a job in asia or middle east to fly bigger airplanes. So these are my options;

1. Joining other major airlines in asia or middle east as 777/787 expat pilot with less job stability I guess.

2. Joining US regional as small/mid size jet fo and building my career from there. But I don’t know what job I can achieve throughout my career.