This is the most expensive day to fly due to weekend travelers returning home.

Travelers save about 5% on domestic and 15% on international flights by booking on Sundays.

Prices almost always spike within 21 days of departure.

Tuesdays and Wednesdays are the least busy travel days, leading to lower fares.

I can look up specific price trends for that route to help you find the best deal.

The first flight of the morning or "red-eyes" (overnight) are often discounted. The "Sweet Spot" Window Domestic: Book 28 to 60 days in advance. International: Book 3 to 6 months in advance.