Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to Brno as you normally would.
Related info for your journey
Useful info, stats and facts about Bangkok to Brno flights.
Brno Turany (BRQ) is the airport you will fly into if you book a flight from Bangkok to Brno. You should not have trouble finding flights to Turany from Bangkok; the airport handles an average of 0 inbound flights from Bangkok per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Brno airport from Bangkok. It is only a 8.0 km journey from Turany (BRQ) to Brno’s city centre.
Bangkok Suvarnabhumi Airport is BKK and Brno Turany Airport is BRQ. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Bangkok Don Mueang Intl Airport (DMK), Rayong Utapao Rayong Pattaya Airport (UTP), Hua Hin Airport (HHQ) are some additional IATA codes for airports related to your trip.