This article from The Points Guy discusses how to use Avios, a rewards program currency, to book flights from the U.S. to Ireland for a low price. The article details how to use Avios to book flights with Aer Lingus, including specific routes and the number of Avios needed for various dates. It also provides information on earning Avios through various credit cards, including those offered by American Express, Capital One, and Chase. The article highlights the potential savings associated with using Avios for flights to Ireland, as compared to other airline programs.