Yep, as long as you stay in the 50 United States - not in Puerto Rico and the US Virgin Islands. I'd recommend you stick to smaller/regional airports -- those that don't have international flights so there is no CBP in the area. Like instead of flying from Chicago O'hare in Chicago (ORD), fly from Chicago Midway (MDW) - out of Texas, instead of Dallas Fort Worth (DFW), fly from Dallas Love Field(DAL) or instead of Houston International (IAH), fly from Houston Hobby (HOU)-- when flying to California, instead of Los Angeles (LAX), fly to Burbank(BUR), or instead of San Francisco(SFO), fly to Oakland(OAK) -- Southwest Airlines usually flies from regional airports (this is not ad plug LOL but you asked! )

If you guys have more questions, just PM me, I fly quite often (20 flights so far this year, about 40+ last year).