To contact Expedia customer service, you have multiple options, including phone, email, and live chat. You can reach their support team by calling their customer service phone number, which varies by country but is typically available 24/7 for urgent travel issues. For email support, you can use the contact form on their website to submit inquiries related to bookings, cancellations, or refunds. Additionally, Expedia provides a live chat option through their website or mobile app, allowing you to get instant assistance from a virtual agent or connect with a representative for more complex issues. For faster responses, it's best to have your itinerary number and account details ready before reaching out.