Use aggregators like Google Flights, Skyscanner, or Expedia to compare prices across multiple airlines simultaneously.
When you are ready to purchase, ensure you have the following details ready: How to Find CHEAP FLIGHTS with GOOGLE FLIGHTS in 2026
For domestic U.S. flights, the "sweet spot" is typically 34 to 86 days before departure. For international travel, booking roughly 1 to 4 months in advance is recommended.
While modern pricing is dynamic, some studies suggest Friday can be the cheapest day to book, while Sundays are often the most expensive.