The Kiwi.com promo code ("appdays10") has been verified by our team and successfully tested for functionality in October 2025, offering the best discounts when booking travel on Kiwi.com. Our experts have confirmed that eligible bookings—including flights, hotels, rental cars, and other travel services—receive up to 10% off. To maximize your savings, please activate the following: enter the Kiwi promo code "appdays10" at checkout. Using this code grants you an additional 10% discount when reserving your travel products. This promotional code has been thoroughly validated and confirmed as the most advantageous option available for various travel products on Kiwi.com.