While many believe in a "magic" day to book (like Tuesday at midnight), modern AI algorithms have largely debunked this. However, some patterns still hold:

5–7 months ahead due to lower frequency and higher demand. Mexico/Caribbean: 1–2 months ahead. Best Days to Book vs. Best Days to Fly

Airlines initially set high baseline prices and adjust them as they gauge demand. Targeting these specific windows helps you catch the lowest fare buckets before they sell out.

2–8 months in advance. Specifically: Europe: 3–5 months ahead.