How far ahead to buy flights for summer and holidays

Why peak dates behave differently

Airlines expect full planes on certain days and stop selling their lowest fare tiers sooner. When demand is high, prices rarely fall as the date approaches.

Rough windows travelers use

• Summer international trips: many travelers start looking four to six months ahead and buy within the window that fits their budget.
• Thanksgiving and year-end: prices commonly rise from early autumn, so some travelers buy by September or October.
• Spring break and school holidays: similar to summer, with strong demand for specific weeks.
• These are general patterns, not rules, and routes vary.

When waiting can work

Flights that are selling slowly sometimes drop in price, and airlines run sales. That is hard to predict, so waiting carries the risk that the fare simply rises.

A low-risk approach

• Pick a price you would be happy with and set a fare tracker for it.
• Check the fare rules for changes and refunds before you buy, since a flexible fare costs more but reduces risk.
• Compare the total with bags and seat fees included.
• In the United States, the DOT 24-hour rule lets you cancel many tickets purchased at least seven days before departure for a full refund; read the current terms for your ticket.

What the fare data adds

Route pages show the lowest recently found fare in each month so you can see how far peak months sit above the rest. The numbers are cached estimates and may be gone.