Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to Wenatchee as you normally would.
Related info for your journey
Useful info, stats and facts about Bangkok to Wenatchee flights.
Located just 8.3 km from the city centre, Wenatchee Pangborn Field is the airport most travellers will use when flying to Wenatchee from Bangkok. Booking flights from Bangkok to Pangborn Field (EAT) should be relatively easy as there are 0 daily inbound flights from Bangkok from 0 different airlines.
Bangkok Suvarnabhumi Airport is BKK and Wenatchee Pangborn Field Airport is EAT. 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 other airports near this flight route and their unique identifiers/IATA codes.