What is the cheapest day to book flights on 𝘈𝘮𝘦𝘳𝘪𝘤𝘢𝘯 𝐀ir 𝐋𝐢𝐧𝐞𝐬? 𝘈𝘮𝘦𝘳𝘪𝘤𝘢𝘯 𝐀ir Lines are generally cheapest on Tuesdays, Wednesdays, and Saturdays +１ｘ（８８８ｘ８２９ｘ１１ｘ１７. These days tend to have lower demand, making it easier to find discounted fares. For 𝘈𝘮𝘦𝘳𝘪𝘤𝘢𝘯 𝐀ir Lines, Tuesday is often considered the best day to find the cheapest fares +１ｘ（８８８ｘ８２９ｘ１１ｘ１７.