Glasgow International Airport (GLA) is located about 13 km (8 miles) west of Glasgow city center. There are several hotels within walking distance of the airport, including:

1. Holiday Inn Glasgow Airport: This hotel is located just across the road from the airport terminal, so it's the closest option. It takes less than five minutes to walk to the hotel from the terminal.
   
2. Courtyard by Marriott Glasgow Airport: This hotel is located just a little further away than the Holiday Inn, but still within walking distance. It takes around 10 minutes to walk to the hotel from the terminal.
   
3. Travelodge Glasgow Airport: This hotel is located a bit further away than the other two, but still within walking distance. It takes around 15 minutes to walk to the hotel from the terminal.