Introduced in 2011, Avios serves as the frequent flier currency for the loyalty programs of six airlines. These include Qatar Airways, Finnair, and the carriers under the International Airlines Group (IAG), such as British Airways, Iberia, Vueling, and Aer Lingus. The most straightforward method to accumulate loyalty points is, of course, by flying. However, Avios points can also be collected at gas stations. Here is how.