Oceania Cruises is currently offering a flight upgrade special as part of the line's OLife Choice package, according to a statement.
For as little as $149 extra, guests can secure premium economy seats for over 100 European sailings for the 2018 cruise season.
The OLife Choice package includes free unlimited internet, airfare (where applicable), bonus savings, and the choice of one of the following: free shore excursions, free house beverage package or shipboard credit.
The flight upgrade promotion is offered to guests in all stateroom categories, from economical inside staterooms to the lavish Owner's Suites, and carriers include (but are not limited to) British Airways, Virgin Atlantic, Air France, Scandinavian Airlines, Air Canada, and Icelandair.
The special runs through June 30.