Originally Posted by
xj200capt
FO's are not locked from upgrading when their seniority can hold a Captain position. FO's are locked for 2 or 3 years from bidding another FO's seat in another aircraft (I think 2 years).
And to add if you would switch FOs seats after the initial 2 FO to FO seat lock you would get another 2 year seat and that one is for everything IE no upgrade either for 2 years.