With more consumers flying, travel activity booking firms such as Airbnb (NASDAQ: ABNB) and TripAdvisor (NASDAQ: TRIP) would also come into focus. Source: TD Ameritrade TOS [Read More] Stock Market Today: Dow Jones, S&P 500 Tumble On Soaring Inflation; IronSource Surges On Merger With Unity Software Delta Air Lines Inc. According to each policy set forth by Southwest, the company provides supplementary services like EarlyBird Check-In, premium boarding, and transportation for unaccompanied kids and pets.