What does the phrase 'according to plan' imply about the trip?

The phrase 'according to plan' suggests that the trip unfolded as anticipated and went well without any significant issues. This implies that all elements of the trip, such as the itinerary, schedule, and logistics, were executed effectively, leading to a positive experience. When something occurs 'according to plan,' it typically indicates that the outcomes align with the initial expectations, highlighting a sense of order and success throughout the trip.

Other interpretations—like unexpected issues, poor organization, or frequent changes to plans—do not align with the meaning of the phrase. The essence of 'according to plan' reflects smoothness and adherence to a set course of action, distinguishing it from scenarios where complications or disorganization would be present.