That creeping suspicion that your laptop is reporting back to the airlines — that they saw you hesitate and quietly bumped the price — has just been tested properly, and it doesn't hold up. The Netherlands Authority for Consumers and Markets, the Dutch competition regulator, dug through more than 14 million ticket transactions across 155,417 flights on 56 routes, covering trips flown between July 2022 and July 2025. Its conclusion: plenty of dynamic pricing, essentially no personalised pricing. Your previous searches and your choice of device simply didn't explain what you were quoted.

A typical flight in the study carried roughly 30 to 35 different prices for a comparable seat over its selling period. That sounds sinister, but it's just fares shifting as seats sell, bookings get cancelled, forecasts are revised and competitors move. Meanwhile, consumers haven't got the message: 46% of those surveyed believed earlier searches raised their price, and a quarter thought their device did. All that incognito-mode fiddling is, for the most part, wasted effort.

The logic of the myth falls apart on its own, too. If an airline noticed you searched and didn't buy, the sensible read is that you balked at the price. Raising it would push you to a competitor, who has every incentive to undercut. What airlines actually do to separate bargain-hunters from people willing to pay more is old-fashioned: advance purchase requirements, Saturday-night stay rules, basic economy — product design, not surveillance.

The piece also deflates a couple of famous scare stories. The 2012 Orbitz 'Mac users pay more' claim turns out to have been about recommending pricier hotels to Apple customers, not charging them extra for the same room; the experiment ran about a month and was dropped because it didn't help sales. And the viral United video that appeared to show a senior citizen quoted $400 extra was really a new search that swapped a mixed coach-and-first itinerary for first class throughout.

Why it matters for travellers: stop blaming yourself for not booking instantly. If a fare moved between searches, it's the market, not a tracker. And know that VPNs and logouts won't unlock secret discounts — though booking through an airline or Expedia site in another country can occasionally expose locally-priced fares. Check a fare, and if the price and the timing feel right, book it; hesitation costs you nothing in tracking, but prices do genuinely climb as planes fill.