MIAMI — WOW Air has announced on Monday its fifth and sixth destination in North America. The airline will fly to the United States West Coast cities of Los Angeles and San Francisco starting in the summer of 2016. This announcement follows the successful launch of transatlantic routes to Boston and Baltimore earlier this year.

The Icelandic low-cost carrier will take delivery of three new Airbus A330-300 aircraft. Each plane will be able to carry 342 passengers in a single-class configuration. The standard seat pitch will be 30 inches, but passengers can pay an extra fee to enjoy four more inches of legroom. These aircrafts will be the first wide-body planes in their fleet.

According to the airline, the Brits will be able to connect in Keflavik from London-Gatwick and fly to Los Angeles four times a week and to San Francisco five times weekly. Customers will be able to purchase tickets to fly to California in January 2016.

WOW Air is expanding in North America rapidly. In March 2015, it started nonstop service between Keflavik and Boston. In June, it launched flights to Baltimore. In September, it announced new year-round flights to two Canadian cities, Montreal and Toronto to begin in May 2016.

“We are thrilled to add Los Angeles and San Francisco to our fast growing network. This is a game changer for WOW air as we cement ourselves as the industry leader in the ultra-low-cost long haul category. With the addition of these long range A330-300 aircraft to our fleet, we will be able to offer fares from Europe to the US West Coast far cheaper than our competitors whilst maintaining great service with a smile, as we did with our routes to Boston, Washington DC, Toronto and Montreal,” said Skúli Mogensen, founder and CEO of WOW Air. “We have had a tremendously positive response to our low prices on our current transatlantic routes and this gives us confidence that passengers will take up the chance to travel even further afield. Equally, we’re sure Californians will welcome our super low fares to Europe.”

The airline says its current routes to the United States operate all year-round and have an average load factor of 90% and above. It has brought down prices industry-wide by 30% between Boston and Keflavik. Iceland’s largest air carrier, Icelandair, operates the route year-round as well.

WOW Air expects its annual passenger capacity to double from 840,000 in 2015, to over 1.6 million in 2016. Since its launch in November 2011, the airline now flies to 20 destinations in Europe and the United States using a fleet of three narrow-bodies Airbus A320s and two A321s.