Tuesday and Wednesday are consistently the least expensive days for international travel.
If you must book late, try to do so at least 21 days out to avoid the steepest fare jumps. When to Fly for the Best Deal The day you fly matters more than the day you book. best time to buy an international flight
There is no "magic day" to purchase a ticket; modern airline algorithms change prices constantly based on demand, not the day of the week. When Is the Best Time to Buy Plane Tickets? - CLEAR Tuesday and Wednesday are consistently the least expensive
Depending on your destination from the U.S., the ideal window shifts: prices rise earlier and more sharply.
Book 4 to 10 months ahead. For high-demand periods like Christmas or the Olympics, prices rise earlier and more sharply.