Initial Terminal for Alaska Airlines at George Bush Airport (IAH). Terminal A is where the majority of domestic flights, Alaska Airlines George Bush Airport Terminal including flights, land. Inside the terminal, there are several amenities available to passengers, including as dining options, shops, and cozy seating places. It is recommended that travelers arrive early for security and check-in when using Alaska Airlines. Shuttle services are offered for passengers who need to change terminals, and Terminal A offers convenient access to other areas of the airport. At IAH, Alaska Airlines passengers had a seamless and effective flight.