 At Day Air Credit Union, your money works harder for you every day. Day Air Cashback Checking earns you money day in and day out, and better rates for your car, home, and personal needs brighten your days. Day Air Credit Union, a better banking experience. The doctor's office that accidentally mixed up your files has your social security number. The power company that mistakenly cut your service has your payment info. And the hotel that lost your reservation has your passport number.