How to Use Flight Price Alerts to Book at the Right Time

How price alerts work, how to set them up for flexible trips, and how to tell a real drop from noise.

A price alert watches a route and emails or notifies you when the fare changes. It's the most reliable way to book well without checking every day.

Set them up well

Set alerts early, as soon as you know your travel window.
Use city codes (e.g. LON, NYC) to include all airports.
Set alerts for a few date options, or a whole month if the tool allows.
Set one for nearby departure cities too.

Read the signal

Watch for a week or two to learn the route's normal range. A drop that puts the fare clearly below what you've been seeing is the moment to book. Small daily wiggles are noise.

Put it to work

Compare flight prices (Aviasales)

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