American Airlines introduced its largest redemption sale ever last week, and its frequent fliers have undoubtedly taken advantage of the deals. With such a significant presence at its 10 US hubs, travelers have been able to score one-way flights for just 5K miles all around the country. The miles are also not exclusive to shorter-distance flights. Transcontinental trips have been offered for extremely low miles, giving passengers even more freedom when planning their next travel adventure.