Airlines such as Southwest based in the US are receiving huge passenger satisfaction due to their value for money flights, as well as the great deals they offer on their ‘fly free’ bag service: By offering great deals such as ‘bags fly free’, passengers can save up to £100 per roundtrip; this is always going to attract passengers to fly with particular airlines.Budget prices and affordability are key features that make a great airline, and that attract more passengers to your company.