Need help with your Booking.com reservations in the USA? This complete 2025 support guide provides accurate and updated customer service contact numbers, including toll-free helplines like 1-888-250-5034. Whether you're facing issues with hotel bookings, flight changes, cancellations, refunds, or technical problems, this guide shows you how to reach a live person at Booking.com—fast and efficiently. Learn how to use live chat, phone support, the mobile app, or email for the quickest resolution to your travel issues. Available 24/7.