Saudi budget airline flyadeal is studying a possible order for between 10 and 20 wide-body jets to carry more passengers, and could make a decision by the end of the year.

The low-cost subsidiary of state carrier Saudia is in the early stages of comparing the Boeing 787 and Airbus A330neo, CEO Steven Greenway told Reuters. It has not yet started a formal competition between planemakers, he added.

Such a deal would be worth up to around $5 billion at list prices, though airlines typically win sharp discounts.

(Reporting by Tim Hepher, Lisa Barrington; Editing by Jan Harvey)