In my batch there are 3 people who worked for "low cost airlines".
There is a girl who actually applied 4 times, and in Emirates they told us of his amazing case of a girl who applied 17 times (she started when she was 20 and got the job at 31). Si yes, they can hire you after the 6 months, just be sure to let 6 months pass.
Minimum education is high schoold indeed, no university required, dont worry.
Best of luck!
