Terminal 3 Click to see full answer. Hereof, what terminal is Alaska Airlines in McCarran airport? Terminal 3 Also, what terminal does Alaska Airlines fly out of? Terminal 2 Likewise, people ask, what airlines are at Terminal 1 at McCarran? Airlines at T1 allegiantair.com. 1.702.505.8888. A Gates. Terminal 1 – T1. aa.com. 1.800.433.7300. D Gates. Terminal 1 – T1. delta.com. 1.800.221.1212. D Gates. Terminal 1 – T1. southwest.com. 1.800.435.9792. B and C Gates. Terminal 1 – T1. spirit.com. 1.801.401.2222. B Gates. Terminal 1 – T1. Which terminal is Southwest Airlines in Las Vegas? Terminal 1