A layered approach to online flight search aggregates results from multiple metasearch engines, which in turn compile data from numerous online travel agencies and airlines. This approach casts a wider net, potentially uncovering more comprehensive results and fare options than using a single metasearch engine or going directly to an airline or travel agency. For instance, imagine a traveler searching for a flight from New York to London. A layered search might compare results from Kayak, Skyscanner, and Google Flights simultaneously, aggregating their combined offerings into a single view.
This aggregated approach provides significant advantages for travelers. The broadened search scope increases the likelihood of finding the most competitive fares, including deals that might be exclusive to specific platforms. Furthermore, it saves time by eliminating the need to manually check multiple websites. Historically, travelers had limited options, often relying on travel agents or individual airline websites. The advent of metasearch engines streamlined the process, and this layered approach further enhances efficiency and empowers travelers with more choices.