This makes it easier to scale check-in capacity to meet demand, and enables even small airlines to offer self-service check-in.

ECONOMIST: REPORTS

Changes to Delta's self-service check-in kiosk designs were launched across all worldwide locations in September on more than 2, 500 individual kiosks.

ENGADGET: Delta introduces Fly Delta app for iPad, iOS 6 Passbook integration

The carrier is already experimenting with self-service baggage check- in.

FORBES: Fact and Comment

There's still an old-fashioned check-in counter, but most of the baggage drop points are self service.

WSJ: Flying Through the Airport