St Vincents new international airport is now open
 

Video of the first heavy jet landing was posted on facebook. We can expect a few carriers to start flying there which will i suspect change some multiple island transatlantic and us routes in the coming months.

Only LIAT [late in all the time / luggage in another town] is scheduled currently, but there will be others, eg i would think BA might move one of its 2 flights st lucia and gda to st vincent and gda.