When choosing a seat on Delta Airlines, book early for the best selection and use the seat map during booking or check-in to pick your preferred spot. For extra comfort, consider Delta Comfort+ or Main Cabin Extra for more legroom. Window seats offer views and a wall to lean on, while aisle seats provide easier access to the restroom. If you prefer quiet, avoid seats near the bathrooms or galley. Tools like SeatGuru can help you check seat reviews and aircraft layouts before selecting.