To ensure you get the cheapest price possible for a flight from Gothenburg to Zadar, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Unlike at noon, when flights are generally more expensive, you can save up to 36% on flights from Gothenburg to Zadar by exploring options for tickets in the morning.