- First-hand where we say so — we name the places we’ve actually stayed
- No invented prices, no made-up restaurants, no AI filler
- Written to stay true — methods, not details that rot
- Interactive tools so you can test any of it yourself
The best flight deals are not found — they are caught. By people who set traps months in advance and let software do the hunting while they sleep. If you only search for flights when you are ready to book, you are shopping at whatever the price happens to be that day. The fare-alert traveler shops at the price’s lowest point, which is a different day, and gets the cheap fare without doing anything.
How airline pricing actually works
Airline fares are dynamic. The same seat on the same flight changes price dozens of times between when it goes on sale and when it departs, in response to demand signals, competitor moves, unsold inventory, and algorithms you cannot predict. There is no permanent “best day to book” that applies to all flights — but there is a price floor that every route hits at some point, and fare alerts are the mechanism that catches you when it does.
The three tools to use
Google Flights price tracking
Search your route on Google Flights, then toggle the track prices switch. Google will email you when the price changes significantly. The advantage is that it monitors exact routes and dates — it is not a general deal alert, it is a sniper alert for your specific trip. This is the first alert to set for any trip with firm dates.
Going (formerly Scott's Cheap Flights)
Going monitors departure airports you choose and sends alerts when a significant deal appears — often a mistake fare or an aggressive sale. Unlike Google Flights, these are not for specific dates: they are for when an extraordinary price appears on a route from your airport. You need flexibility to use them, but the deals are often genuinely exceptional. The free tier is adequate for most users.
Skyscanner price alerts
Skyscanner allows alerts on specific routes and also on “everywhere from my city” — the latter is useful when your dates are firm but your destination is open. Set one for your travel window and see what becomes cheap.
The setup that works
- Set Google Flights tracking immediately when you identify your target route. The earlier you set it, the more of the price curve you observe.
- Set a Going alert for your home airport and set your flexibility filter honestly. If you cannot be on a plane within a week, a mistake fare is not useful to you.
- Know your target price. An alert without a number in mind produces decisions made under pressure. Run the search once, note what the price is today, and decide what price would make you book immediately. That is your trigger.
- Book when you hit the trigger, not when you have time to think about it. Mistake fares and sale fares revert quickly, often within hours.
The booking window by route type
| Route | Sweet spot | Why |
|---|---|---|
| Domestic / short-haul | 3–8 weeks out | Business travel fills seats close in; leisure books earlier; the gap between is cheapest |
| Long-haul international | 3–6 months out | More seats, more variation; early availability often has promotional fares |
| High season / specific events | As early as available | Demand exceeds supply; early wins on these routes |
| Mistake fares | Immediately | They last hours. Book, then figure out if you can make it work. |
What fare alerts cannot do
Fare alerts cannot predict when the cheapest price will appear — they can only notify you when the price you are watching changes. They do not help if your dates are completely inflexible and a deal appears on adjacent dates. They do not help for routes where prices do not vary much — monopoly routes with one airline and no competition.
What they do is remove the effort of checking. The check happens automatically. You engage only when something worth engaging with appears.
Compare the whole map at once
Everything above is a method, not a fare. When you actually go looking, search broadly first — whole months, flexible dates, nearby airports — before you narrow to a route. Aviasales compares the airlines and agencies together, which is the search we start with.
Search flights →Finding cheap flights goes beyond alerts
Fare alerts catch the moment. The full system — which search engines to cross-check, when booking windows really open, and how to use the calendar view — is in the flight exploit of the free Playbook.
What would this actually cost you?
Enter your own city and monthly spend. The calculator returns the multiple, the annual surplus, and how long your money would last.
Open the cost calculator →