Booking any kind of travel can be a challenging and frustrating experience and can also prove to be stressful as you search high and low for the best deals and discounts for your airfare.Once you find the perfect deal, you might also find that you have limited time to take advantage of that deal and having to grab your credit card to input all those numbers is wasting some valuable money-saving time.You may not even have a credit card at all, to begin with, because you are trying to avoid falling into debt, but you still need a way to pay for your flight. For all of this, PayPal definitely comes in handy and proves to be a very convenient choice.The following are a few of the bigger travel companies that currently accept PayPal as an online payment;