United Airlines vs Southwest Airlines

Overview

United Airlines is a major airline headquartered at Willis Tower in Chicago, Illinois. According to Wikipedia, it was formed in 1931 as a subsidiary of United Aircraft and Transport Corporation, which controlled a group of airmail carriers assembled by William Boeing. It is a subsidiary of United Airlines Holdings (Nasdaq: UAL) and was one of the five founding members of Star Alliance. Scott Kirby is chief executive. The airline reported revenue of US$59.1 billion for 2025.

Network and hubs

United serves around 405 destinations across six continents. Its hubs are Chicago–O'Hare, Denver, Guam, Houston–Intercontinental, Los Angeles, Newark, San Francisco and Washington–Dulles. Regional services are flown by independent carriers under the United Express brand. Through Star Alliance and its partners, the network extends further worldwide. Over the years United acquired Pan Am's Pacific routes (1985), its London Heathrow operation (1991) and its Latin America and Caribbean routes.

Fleet

As of September 2026, the United Airlines fleet consists of 1,137 mainline aircraft, the largest of any airline worldwide, according to Wikipedia citing Cirium. It operates a mix of Airbus and Boeing narrow-bodies and an all-Boeing wide-body fleet, with more wide-bodies than any other North American airline. Regional aircraft operated by United Express partners are not included in that figure.

On board

Cabin layouts, seat pitch, entertainment and Wi-Fi vary by aircraft type and route. These details were not verified for this profile, so check the United website for the aircraft on your flight.

Good to know

• Frequent-flyer programme: MileagePlus, which is linked to Star Alliance status benefits.
• Baggage allowances, change fees and lounge access depend on fare, route and status. Check the current rules on united.com before booking.
• Star Alliance membership allows connections and lounge access with partner airlines for eligible passengers.

Global Network and Operations

Southwest Airlines, headquartered in Dallas, Texas, operates one of the largest domestic networks in the United States, serving over 100 destinations primarily within North America. Its fleet consists of approximately 750 Boeing 737 aircraft, allowing efficient and frequent service across its route map. Southwest is renowned for its point-to-point service model rather than the traditional hub-and-spoke system, which enables more direct flights for travelers. The airline does not belong to any global alliance but maintains partnerships for codeshare and interline agreements to expand connections.

Innovation and Milestones

Southwest Airlines is recognized for several pioneering efforts in the airline industry:
• Popularized the low-cost carrier model in the United States, focusing on affordable fares and customer service.
• First major U.S. airline to offer free checked bags, eliminating baggage fees for passengers.
• Implemented an open seating policy, removing assigned seats to speed boarding and reduce costs.
• Maintains a standardized fleet of Boeing 737s, enhancing operational efficiency and lowering maintenance costs.

Customer Experience and Recognition

Southwest Airlines offers a single economy cabin configuration and prides itself on friendly and accessible customer service. Its Rapid Rewards loyalty program is popular among domestic travelers. On-time performance is consistently above industry average, supported by a strong safety record with no fatal accidents. In-flight entertainment is limited to free streaming via personal devices, and complimentary beverages and snacks are included on all flights. The airline maintains a reputation for affordable pricing with transparent policies and no change fees.

Future Outlook

Looking forward, Southwest Airlines continues to focus on expanding its domestic and select international routes while investing in fleet modernization through the acquisition of newer Boeing 737 MAX aircraft to improve fuel efficiency and customer comfort. The airline aims to enhance digital services, maintain competitive pricing, and further its sustainability initiatives by exploring carbon offset programs and newer technologies.