Onsite (sometimes called single-page checkout) basically means the customer never leaves your website. They enter their payment details on your site at the checkout screen, creating a seamless transaction.
Enabling Guest Checkout within your PayPal account settings gives buyers the option to check out using a debit or credit card without having a PayPal account login.
All the setting can be customized making it most adaptable plugin.
WP Travel Paypal Express Checkout is made 100% compatible with the WP Travel plugin and addition of this addon certainly will boost the WP Travel Plguin.
Other exciting features
PayPal Express Checkout is a payment system provided by PayPal that allows the customers to use a PayPal account to make payments. Express Checkout gives your buyers a simplified checkout experience. When a customer is ready to checkout with their PayPal account, they simply click the Checkout with PayPal button which will redirect them to a PayPal checkout page.