https://support.google.com/admanager/thread/306639837?hl=en&sjid=1379473073174585785-AP What day is the cheapest to book American Airlines? What day is the cheapest to book American Airlines? American ????????????lines is known for offering its cheapest flights on off-peak days, particularly on Tuesdays, Wednesdays, and Saturdays ????-????????????-????????????-????????????????. These days tend to have fewer travelers, allowing the ????????????line to offer discounted prices.