Firstly, browse the sites below and try different dates and airports
SkyScanner
On Sky Scanner, put in the airport you want to go from, and select "Explore Everywhere" in the destination airport. Put your date in you want to travel and make sure you select "Direct Flights".
Click on search, and it will come up with some results for your requested dates. Select the destination you want to visit and it will tell you the timings of the flight and the cost.
Google Flights
On Google Flights, select your departure airport(s) and a destination (you can select a country, city or airport from the dropdown when you start typing), choose a date and click Search. If you click again on the departure date, it should display a list of prices under each date.
TIP: book direct with the airline, then if there are any problems, it makes it easier to deal with!
