It's simple to navigate Delta Airlines' Delta Airlines DFW Terminal at DFW Terminal E if you follow these helpful tips. Arrive at least two hours before domestic flights and three hours before international flights to allow for security and check-in. For easy check-in and mobile boarding cards, use the Delta mobile app or self-service kiosks. Use the Delta Sky Club lounge, which provides free refreshments and Wi-Fi in a comfortable, quiet environment, if you are eligible. Terminal E has a large selection of eateries and stores for a relaxed wait. For easy terminal transfers, take the free Terminal Link bus or ride-sharing services.