Some people always have some questions about airlines like what happens if I miss my flight southwest? Even if you are ready to board your flight, there are a number of last-minute issues that could cause you to miss it. High traffic, baggage or security problems, accidents, medical or family emergencies, and heavy traffic are a few examples. This carrier makes it possible for such travellers to take advantage of the Southwest missed flight standby policy. According to this policy, travellers who miss their flight and arrive within two hours of the departure time of their original trip will be given a seat on a standby flight.