No. It doesn’t make a shred of difference. Many people incorrectly assume that the airlines are manipulating prices based on past flight searches. The thinking goes that if the airlines see that a user is interested in a certain flight or route, they’ll raise the prices. But if this was true, the Flight Experts at Going would have a much harder time finding deals. We run thousands of searches every day, day after day. If prices were rising based on those previous searches, we’d see it. Airline and OTA (aka online travel agency) websites do typically access your IP address, but they do that in order to provide accurate location-related information like language and currency—not to manipulate prices based on your activity. Airline prices are highly volatile. If the price happens to change between searches, there could be a number of factors at play. First, prices fluctuate all the time, and it’s possible that the price simply increased in the few minutes between searches. Second, a price is usually only good for a certain number of seats. Once those seats are sold, the price rises to the next bracket. If you’re searching on an OTA, it’s also possible that the first price you saw had already expired but the OTA hadn’t yet updated its prices. When you ran the second search, the prices had updated and the new price was higher. In the wise words of Alexis Rose, “People aren't thinking about you the way you’re thinking about you.” While airline and OTA sites are tracking things like your location, they aren’t obsessively tracking your searches to sneakily increase the prices on flights they know you’re interested in. When a price increases the second time you search, it’s coincidence caused by a number of factors, or simply a lagging price update. It’s not an intentional move to get more money from you. While there’s no harm in clearing your cookies or searching for a flight in your browser’s incognito mode, it’s just a waste of time. It’s not going to help you get a better price.