1. a long-distance coach or bus service that operates between airports and city centers or other destinations
Usage: chiefly British and Irish English; often capitalized when referring to a specific company or service

Examples

• The aircoach from Dublin Airport takes passengers directly to the city center.
• I booked an aircoach ticket online for a fraction of the taxi fare.
• The aircoach service runs every 30 minutes during peak hours.
• Many travelers prefer the aircoach because it is more affordable than a rental car.