Originally Posted by
fly bhoy
roundthebend
The best way to tell the a319/20/21 apart is look at the overwing exits.
a319 - 1 overwing exit
a320 - 2 overwing exits right next to each other
a321 - 2 overwing exits but 1 at leading edge and 1 behind the wing.
Hope that helps.
FB
Just to be picky
Easyjet have two overwing exits on their A319s due to the number of seats. 321s have 4 full size doors rather than the smaller overwing exits on the 19 & 20.