Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at Feb 25th. As of Feb 13th, it's showing the cheapest ticket sales at $859. That is 74% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : How much should a trip from Honolulu (HNL) to Adelaide (ADL) cost?
Answer : Flight prices are fluctuating much more for this route than most routes from the United States, as they're ranging anywhere from $797 to $4,513. Remember, the sooner you book, the more you'll be able to save.
Question : How long do most people visit Adelaide?
Answer : Of course you're not most people, but if you were, you'd stay roughly two weeks.
Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : The lowest-cost day to fly in February is Saturday. Flexibility is paramount when booking travel plans in order to keep travel costs down.