<human>:  What is the most cost-effective way of traveling to Europe?
<bot>: The most cost-effective way of traveling to Europe is to research various airlines and compare their fares to find the best deals. You may also want to consider budget airlines, as they often offer significantly lower fares than traditional carriers. Another way to save money is to book your flight in advance and take advantage of promotions and discounts. Additionally, sign up for airline loyalty programs, as they often provide additional savings on airfare.