Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Medan to Beijing as you normally would.
Medan Kuala Namu Intl (KNO), located 23.8 km from the city centre, is the airport you fly out of when you book flights from Medan to Beijing. 0 airlines have flights from Kuala Namu Intl to Beijing on a regular basis. Booking flights from Medan Kuala Namu Intl to Beijing should not be difficult; the airport handles an average of 0 outbound flights to Beijing per day.
Medan Kuala Namu Intl Airport is KNO and Beijing Capital Airport is PEK. 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. Beijing Daxing Intl Airport (PKX) are other airports near this flight route and their unique identifiers/IATA codes.