See the psychological explanation of aircraft:
Airplane is a fast means of transportation, but the ticket price is usually a little expensive. Many people only take this expensive but fast means of transportation when they go far away or when there is a discount, so dreaming of going to a place by plane usually means long-term goals, or your illusory dreams, in short, those goals that must be achieved at a high price. The plane in the dream also symbolizes that the dreamer needs to fly away, put aside all troubles, abandon the old life and start a new journey.