While many experts now argue there is to buy plane tickets due to modern dynamic pricing algorithms, some research identifies early morning and late night as potential sweet spots. Specifically, data suggests that booking between 1:00 AM and 5:00 AM (especially on Tuesdays) or around 5:00 AM can yield lower prices as airlines often reset their fare algorithms or release overnight updates.
: Journal of Air Transport Management (ScienceDirect) best time of day to buy plane tickets
For a deep dive into the mathematical models behind these trends, you may want to refer to the following scholarly research: Recommended Academic Paper : "Optimal purchase timing in the airline market" While many experts now argue there is to