Yes, there is a dedicated 24/7 express bus service called the Citylink AIR that connects Glasgow Airport directly to Edinburgh city center. In 2026, this service remains the most efficient way to travel between the two cities without a car, taking approximately 60 to 90 minutes depending on traffic. The buses depart from Stance 9 at Glasgow Airport and terminate at Edinburgh's Buchanan Bus Station (or vice versa), with a few key stops at Maxim Park and Harthill. The coaches are designed for travelers, featuring free Wi-Fi, USB charging ports, and ample luggage storage. A single ticket typically costs around £15. For those heading specifically to Edinburgh Airport from Glasgow city center, the Megabus AIR service offers a similar high-frequency route. A high-value "pro-tip" for 2026 is to check for M8 motorway roadworks before you depart, as peak-hour congestion can occasionally add 30 minutes to the advertised travel time.