I've just inputted all the possible teams into Google Earth.
So these are the closest teams to St Mary's that we could possibly face at the moment, excluding the other English teams
Lille
Gent
Anderlecht
The New Saints
Ajax
Feyenoord
AZ
Connah's Quay Nomads
Cork City
Genk
Standard Liege
Meanwhile, the teams the furthest away from us:
Kairat, which isn't that far away from the Chinese border!
Astana
Kapaz
Gabala
Neftci Baku
Dinamo Tbilisi
Shirak
Alashkert
Hapoel Be'er Sheva
Beitar Jerusalem
Maccabi Tel Aviv