Payment by credit card because of expenses incurred, will be charged by the airline and you want to show your credit card for travel in case I see airport officials.
Payment by credit card The costs incurred will be charged by the airlines. And you must be prepared to show a credit card on a day trip to see the airport authorities.
Payment by credit card. Due to the costs incurred will be charged by the airline. And you need to prepare a credit card to show on the day of departure in the airport staff and take a look.