Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at Mar 16th. As of Feb 20th, it's showing the cheapest ticket sales at $990. That is 56% 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 Bucharest (OTP) to Honolulu (HNL) cost?
Answer : Flight prices are fluctuating a lot more for this route than the majority of routes from Romania, as they're ranging anywhere from $990 to $4,738. Prices tend to be lower the further out you book.
Question : How long do most people visit Honolulu?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The lowest-cost day to fly in March is Thursday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.