It is fairly simple to get to Union Island depending on where you are coming from.
1. Fly Directly to Mainland – St Vincent (Argyle Int’l Airport)
https://www.caribbean-airlines.com operates between JFK and St Vincent.
Liat Airline (operates from several Caribbean Countries) https://www.liat.com
You can also fly to St Lucia, Barbados or Grenada from North America or Europe.
You can also fly to Martinique
Then Fly to Union Island via
Mustique Airways http://mustique.com
Arriving From Mainland St Vincent:
MV Gemstar – Leaves Kingstown Ferry Terminal on Tuesdays and Fridays @11am
MV Guidance – Leaves Kingstown on Wednesday and Saturday @11am
MV Barracuda Leaves Kingstown on Mondays, Thursdays and Saturdays @11am
Arriving From Grenada:
Osprey Ferry to Carriacou http://www.ospreylines.com
Carriacou to Union Island via :
Lady JJ (Leaves Carriacou on Mondays and Thursdays @2pm)
or Union Island Water Taxi