To cancel a booking, the process depends entirely on the type of reservation (flight, hotel, or tour) and the platform you used to book it. Most modern travel sites (like Expedia, Booking.com, or direct airline/hotel apps) have a "My Trips" or "Manage Booking" section where you can initiate a cancellation with a few clicks. Before you hit the button, you must check the "Cancellation Policy"—specifically looking for phrases like "Fully Refundable," "Non-Refundable," or "Partial Credit." If you booked a "Non-Refundable" fare, you will likely lose the entire amount unless you have a valid reason covered by travel insurance. If you are within the "Free Cancellation" window, the refund usually takes 5 to 10 business days to appear on your original payment method. For more complex bookings or if the website is not working, you may need to call the customer service line. In 2026, many companies also offer "24-hour cooling-off" periods (especially for flights departing from the US), where you can cancel within 24 hours of booking for a full refund regardless of the ticket type. Always make sure you receive a cancellation confirmation email as proof that the request was processed, and keep it until your refund has cleared.