"The fleet is going to continue to get better and better."
Meanwhile, it will also begin providing passengers with in-flight text messaging - compatible with Apple's iMessaging function, which will be free of charge to people in both economy and premium-economy upwards.
In addition, from December, long-haul customers in first, business class or premium economy receive a host of sleep-inducing products.
These will include a duvet, pillow, pajamas and slippers, plus a mattress pad and day blanket designed by sleep company Casper.
Engineers from the company studied the travel environment for months to better understand the challenges of in-flight snoozing, which inspired the range.
Now, they hope it will improve in-air comfort and focus on customer experience after spending money and time on its high-profile merger with US Airways.
"Our mission has always been to create products that help people dream their way to a better life,' said Philip Krim, Casper co-founder and CEO.
'In collaboration with American, we are now able to apply our expertise in sleep science to redefine comfort and sleep in flight."