Even though it's tough times in the industry everywhere right now, I don't agree with BritishGuy that you could never aspire to more than 737 Captain the US. You are a young guy and have time to ride this out. I was here during Sept 11th 2001 and fly for a major now. Having said that, you won't get sponsorship from an American carrier, they require at least permanent residence and sometimes citizenship (for TSA/security checks) I would consult an immigration attorney if you're serious about coming to the US, but jobs are hard to find in the short term. Flight instructing doesn't pay much - it pays much more in Australia - but when things improve, there will be movement at the airlines, especially after 2012 when the 65 year olds start retiring in big numbers. PM me if you like