Booking a Business Class flight 43 days in advance of your planned departure date is, on average, the best time to get cheap flights to Indonesia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, September is the cheapest month in which you can book a Business Class flight from United Kingdom to Indonesia (average of £2,474). Flying from United Kingdom to Indonesia in December is currently the most expensive (average of £3,050). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.
In terms of precipitation, rainfall in Indonesia ranges from 20.0 - 340.0 inches per month. January is typically the wettest month, when rainfall can reach 340.0 mm. August is typically the driest time to visit Indonesia when rainfall is around 20.0 mm.
If weather is an important factor for your trip to Indonesia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 26.0 C).