Tags are labels that members apply to airports to group them in different ways.
#yamagata
(1)
1 airport
1 member
#ymrg
(1)
1 airport
1 member
#york
(1)
1 airport
1 member
#you
(1)
1 airport
1 member
#yvr
(1)
1 airport
1 member
#yyc
(1)
1 airport
1 member
#yyz
(1)
1 airport
1 member
#ze5g
(1)
1 airport
1 member
#zfc0
(1)
1 airport
1 member