Flight price tracker and predictor
AirHint is a free flight price tracker and predictor. Search a route and a date, and it says whether to book now or wait. If you wait, a free alert tells you when the price drops. The ticket is bought on the airline or a booking site. AirHint does not guarantee the fare.
As of October 2026, AirHint checks more than 1 million fares a day, using fare history collected since 2015. An AI recommendation uses that history and the current fare. Accuracy is often around 80%, and it depends on the airline and the flight. Where the history is thin, the result says so.
1What the prediction is based on
Millions of real fares, collected since 2015. For the route and date you search, the recommendation uses that history and the fare in front of you.
Airline predictors
Airlines do not price alike, so one rule of thumb does not fit every carrier. We compared Ryanair and easyJet on one route.
These airlines have their own predictor page. A search can still return other carriers. Accuracy is often around 80%, and it depends on the airline and the flight.
2How to track a flight price
- Enter your route and date. Where from, where to, and when.
- Read the recommendation. A search comes back as one of these. Both actions stay available.
Some flights have no recommendation, when we do not have enough data.Book, price drop is unlikely Book nowCreate price alertWait, the price may drop Book nowCreate price alert
- Book, or track it. Book now continues to booking. Create price alert watches that route and date.
3What you get if you wait
If the recommendation is to wait, set an alert on that route and date. Running it is free. We keep checking and tell you when the price drops, by email or in the app. You still decide when to book.
Flight prices: myths, tips and tricks
Why do flight prices change so often?
They change when a fare bucket sells out or the airline reprices. Airlines sell a flight in price buckets. Each bucket holds a limited number of seats at one fare, and when it sells out the price steps up to the next one. Pricing systems also react to demand, competition, seasonality and how close departure is.
How often that happens depends on the airline.
Do prices always rise closer to departure?
No, and not in a straight line. Prices move in steps, and they come down as well as going up. The general tendency in the last weeks is upwards, because the cheapest buckets have usually sold out, but a quiet flight can still get cheaper late.
With Ryanair, when the seats at a given fare sell out the price rises automatically by around 15% to 20%, and it can be brought back down the next day.
Is Tuesday really the cheapest day to book?
No. The day of the week you buy on does not change the average fare. Across about 40,000 observations of London Stansted to Barcelona, the average Ryanair fare was about the same whichever weekday it was bought on.
How often a drop shows up is a different measurement. In that Ryanair study, Thursday accounted for about 23% of price drops, and Saturday and Sunday about 2% each.
A separate Ryanair and easyJet comparison, on a different route, found Ryanair's drops clustered on Tuesdays and easyJet's on Wednesdays.
Best day of week to buy Ryanair tickets · Ryanair vs easyJet
Does the day I fly change the price?
Yes, for the Ryanair departures we studied, and more than the day you book on.
Across five UK airports, Friday and Sunday departures were the most expensive and Monday to Wednesday the cheapest. Leaving Barcelona, Sunday and Monday were the expensive days. It follows the traffic on that route.
Does incognito mode get lower prices?
No. Repeated searches and comparisons of private and normal browsing have not shown airlines raising a fare because you searched before. Airlines have said that what an individual traveller does in their browser has no effect on the fare.
Prices do change between visits, because a bucket sells out or the airline reprices. Sites read your IP address to set country, language and currency.
How far in advance should I book?
There is no single answer. Published studies disagree with each other, and they are averages across huge numbers of flights. Low-cost carriers in particular do not behave like the airlines those studies were built on.
A rule of thumb cannot know that your route is busy in a given month, or that this fare has already dropped. That is what a prediction for your route and date is for.
Best time to book flights · Best time to buy airline tickets
Can I track a price for a flight I have not booked yet?
Yes. You set an alert on a route and date, and we keep checking that fare and email you or notify you in the app when the price drops.
The alert is free.
Our predictions can work inside your own product.
