Delta Air Lines and Amadeus have expanded their commercial relationship to enable the sale of Economy Comfort, Delta’s premium economy seats offering more leg room, through Amadeus’ global distribution system (GDS).

The expanded long-term agreement provides more choices for Delta customers and travel agents to access Economy Comfort seating when booking travel via Amadeus.

“Delta is encouraged by the direction of the technology innovation at Amadeus, and this partnership demonstrates that Delta is listening to its valued corporate and agency partners by broadening the availability of our popular Economy Comfort seating,” said Wayne Aaron, Vice President, Marketing Programs and Distribution Strategy at Delta.

“It’s part of the more than $3 billion we’re investing to improve the travel experience of our customers at all points of their journey.”

Economy Comfort features three to four inches of additional leg room across Delta’s fleet of two-class aircraft as well as giving passengers priority boarding.

On long-haul international flights, the seats also have up to 50 percent more recline than standard economy class seats and customers receive complimentary beer, wine and cocktails. Economy Comfort is available on all Delta mainline aircraft and more than 250 two-class regional jets.

Delta also has an agreement in place with Travelport to sell Economy Comfort seats through the Galileo, Apollo and Worldspan GDSs.