Visit your airline's website to book your flight to Thailand. Enter your departure city, arrival city and dates of departure. View the results for available flights and choose the one that you want. Enter your passenger information, including your name, address, contact information and your credit card information for payment. Review your flight information before you confirm your order. Keep a copy of the confirmation page for your records.
Call your airline to book your flight over the phone. The airline representative will need the details of your trip and travel plans as well as your credit card number to book your ticket. Make note of the confirmation number he or she gives to you.
Visit the airline ticket counter at your local airport to purchase a ticket to Thailand. Provide your dates, departure information and a form of payment. You will receive your boarding pass once you've chosen and paid for your flight.