This specific designation refers to a scheduled passenger flight operated by Southwest Airlines, typically identified by the airline’s two-letter International Air Transport Association (IATA) designator (WN), the flight number (440), and often including the origin and destination airports. For instance, a search for this term might yield information on a flight from Chicago Midway International Airport (MDW) to Phoenix Sky Harbor International Airport (PHX). The flight number itself remains constant regardless of the date or specific route, though a particular aircraft and crew are assigned to each instance of the flight.
Tracking specific flights allows passengers to access real-time information about their travel itinerary, including departure and arrival times, gate assignments, and potential delays. This level of detailed information provides transparency and empowers travelers to manage their journeys effectively. Historical flight data offers insights into an airline’s operational performance and can be used for statistical analysis, route planning, and research purposes. Specific flight information also holds significance in aviation safety investigations and record-keeping.