Dhaka, Feb. 7 -- United Airlines has launched a new billboard campaign around Chicago, taking a playful jab at rival American Airlines as competition intensifies at O'Hare International Airport.

One prominent digital billboard near O'Hare reads, "More on time. Fewer canceled flights. AAdvantage, United," a wordplay referencing American's AAdvantage loyalty program. United said the campaign is designed to showcase its recent operational performance and the breadth of its Chicago network.

According to the airline, the digital ads will run across 55 billboards throughout the city, including locations near O'Hare and along the Kennedy Expressway, a key route for airport traffic.

The move comes as United and American continue to ramp up cap...