I will arrive in Bangkok tomorrow morning. It is expensive to fly business class. There were many passengers in the departure hall. Passengers must arrive at least 30 minutes before departure time.
Most people travel in economy class because it is the cheapest class.
The fare from Bangkok to Chiang Mai on Thai Airways is 1650 baht. My flight was crowded because of the holiday. fully booked adj. The flight is fully booked, so I will fly tomorrow. The secretary made the reservation by telephone. I called the airline to check their flight schedule.