Originally Posted by
AtoZ
Sorry to say KoreanAir from application to being online will take at least six months - the time you need to spend based out of Korea without going home is initially at least four months, having taken probably at least two months from initial application to starting with them, so depending on when the green card clock starts ticking, they may also not be a possibility.
Done it all :-)
In addition, he'll need to go through the TSA foreign student application program:
https://www.flightschoolcandidates.gov/home
Does he hold a degree? US Airlines pretty much require one. Expect to fly for a regional carrier for 12 months al least to demonstrate 121 experience.
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