Data guides

Month-by-month guides to how full flights from the United States have run, region by region, from the records airlines file with the U.S. government. Each guide names the months with the most room and the airline routes that had it.

• Best months to fly standby to Asia from the United States: most room in September, August, January
• Best months to fly standby to Canada from the United States
• Best months to fly standby to the Caribbean from the United States: most room in September, November, March
• Best months to fly standby to Europe from the United States: most room in January, February, October
• Best months to fly standby to Mexico from the United States: most room in April, January, August

These are how full flights have run, not live seats, standby lists, or fares. Check with your airline before you travel.