Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maningrida to Darwin as you normally would.
In terms of precipitation, rainfall in Darwin ranges from 0.0 - 15.7 inches per month. January is typically the wettest month, when rainfall can reach 15.7 in. June is typically the driest time to visit Darwin when rainfall is around 0.0 in.
If weather is an important factor for your trip to Darwin, use this chart to help with planning. For those seeking warmer temperatures, November is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 77.0 F).