Select your travel destination well in advance. Often the cheapest airline tickets are those sold first on many flights by the airline directly.
Choose dates which you can be flexible around, as flying a small number of days earlier or later may get you a cheaper deal.
Visit an airline comparison site on the Internet, such as Fare Compare. Input details into the required fields, as pointed out on the website. These will include number of passengers, destination, date and other fields as requested.
Analyze the results, taking into consideration the flights with the cheapest prices and suitable for the dates you need to fly. Note these deals down, paying particular attention to the date and time that the selected fare will expire.
Visit another online comparison site, entering the same details as you did earlier. The reason for doing this is that comparison sites may search a different number or type of airlines or travel companies. By doing a number of different searches with different comparison sites, you will make sure that you have compared a larger number of available airlines and flights, ensuring that you have the best deal.
Ensure that you have covered your return home from the selected destination. Sometimes two single fares may prove to be cheaper than one return flight, so bare this in mind when searching.
Select the deal that meets your criteria based on price, destination, and date. This will mean clicking on the hyperlink that takes you directly to the airline or travel company website. The same deal and price may not be available by visiting the ticket seller directly.
Check that all details are correct, and that you are happy with any other fees which may be applied by the ticket seller. These might include the cost of checking baggage.
Find out if the seller of your tickets has Air Travel Organisers' Licensing (ATOL). ATOL protects you from losing your money or being stranded abroad.
When you have checked all terms and conditions, and have ensured that your tickets will be delivered to you plenty of time before you travel, complete your purchase. Some airlines may issue you e-tickets instead, and allow you to check in online.