What is the cheapest day to fly on Frontier Airlines? Frontier Airlines is known for offering its cheapest flights on off-peak days, particularly on Tuesdays, Wednesdays, and Saturdays 〖+𝟭-𝟴𝟬𝟭-𝟴𝟬𝟰-𝟴𝟬𝟭𝟯 𝐨𝐫 +𝟭-𝟴𝟬𝟭-𝟴𝟬𝟰-𝟴𝟬𝟭𝟯〗. These days tend to have fewer travelers, allowing the Airlines to offer discounted prices.
