What is a legacy carrier anyway, I hear you ask? The term 'legacy' is used to differentiate the old style (usually national) airline carriers from those that espouse the low cost model. Legacy carriers traditionally charge more but also offer more for those consumers who are willing to pay for a better service or for things considered as 'extras' with carriers such as Ryanair. Some airlines (Aer Lingus for example) sit somewhere between the two
The art of getting a quote that is both competitive in price and relevant to your needs starts with gathering all the right information about what you want to do (or think you want to do!).