What is the difference between various flight search sites' price forecasts?

What is the difference between various flight search sites' price forecasts? - Side view of crop concentrated female customer putting on eyeglasses for improving eyesight while choosing rim in shop

I did a search on Kayak for an upcoming flight and it's price trend suggests waiting, citing 60% confidence that the price of the ticket will do down. However when I search for the exact same flight on Bing Travel it suggests buying the ticket, citing 80% confidence that the price of the ticket will go up. The real stumper is that Bing's results are powered by Kayak.

Does each site use a different algorithim to determine the price trend? Does anyone have any advice on which is more accurate?






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What is the best website to compare flight prices?

The 12 Best Websites for Booking Flights at the Cheapest Prices [...
  • Book Direct Through the Airline's Website.
  • Momondo.
  • Kayak.
  • Expedia.
  • Priceline.
  • Orbitz.
  • Agoda.
  • Hotwire.


Do flight prices go up when you search?

However, airlines say prices change not because of a consumer's search history on a website, or their cookies, but because of inventory updates or glitches on the website, FareCompare's Rick Seaney said in an email.

Do flight prices change based on web browser?

Surprisingly, there is very little evidence that online travel sites are raising prices the more that you search for a specific trip. In fact, they tend to show lower prices to logged-in users.

How accurate are hoppers price predictions?

Hopper predictions claim to be 95% accurate. The algorithm they use is based on millions of historical data points and tries to predict the best time to purchase a flight or hotel so you can save money.



HOW TO FIND CHEAP FLIGHTS - My Best Tips After Booking 500+ Flights




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Ksenia Chernaya, Maria Orlova, Ksenia Chernaya, Laura James