What is the cheapest day to book flights with Alaska Airlines?

[Best Deals]~What is the 𝗖𝗵𝗲𝗮𝗽𝗲𝘀𝘁 day to book 𝗳𝗹𝗶𝗴𝗵𝘁𝘀 on 𝙰𝚖𝚎𝚛𝚒𝚌𝚊𝚗 𝙰𝚒𝚛𝚕𝚒𝚗𝚎𝚜?

What is the cheapest day to book flights with 𝔄𝔩𝔞𝔰𝔨𝔞 𝙰𝚒𝚛𝚕𝚒𝚗𝚎𝚜?