https://www.avjobs.com/careers-direc...quirements.asp
That information concerning United FA bases is well out of date and is misleading. The only foreign base is LHR; the rest closed during COVID, any FA who did not have US work rights lost their jobs. United has not hired direct hires into LHR since 1997. There are over 800 transfer requests in for US based FA’s to move to LHR and as someone has already written, everything at United is seniority based, whether pilot, FA or mechanic etc. GUA is a US base.
As far as pilots go, UA is still hiring ferociously. They are on track for hiring 2000 pilots this year alone. There are 17000+ pilots on the property now, with a rumored target of 28000. They may pull back to 1600 if MAX deliveries continue to tank. Green cards or citizenship required.
Southwest just stopped pilot intakes. For now.