From the homepage

Use our fare finder on the homepage.

1. Select the 'Flights' tab in the fare finder and choose the type of ticket you require: Return or One Way.
   
2. Then select From and To cities using the drop down menus.
   
3. Next, select your Leaving date and your Returning date (if you're travelling return). Use the calendars for easy selection of dates.
   
4. To compare fares for a week around your chosen dates, select Show prices across a week.
   
5. Select the number of Adults, Children and Infants travelling.
   
6. Select your Service Class from the drop down list.
   Click on the Info link to learn more about service classes.
   
7. If you have a Promo Code, enter it here.
   If you do not have a code, leave the box blank and continue your search.
   
8. Click GO to Search for flights.