The operation will run from June 8th to October 26th 2018.
Their increasingly strong commitment to sustainability earned the "silver" for the Glasgow Convention Bureau (CB), the first such entity to receive this award.
ibtm world will take place from 28th to 30th November in Barcelona.
The airline is back in Portugal, after connecting Lisbon to New York earlier this year.
The new Carristur boat is prepared for tourist circuits, but also to host any type of event.
The new Ryanair connection between Porto and Malta will operate twice a week, on Mondays and Fridays.
This new United Airlines daily connection ends on October 4th.