United Airlines' headquarters is located in the iconic Willis Tower (formerly known as the Sears Tower), at 233 South Wacker Drive, Chicago, Illinois. As one of the tallest buildings in the Western Hemisphere, Willis Tower is a powerful symbol of innovation, resilience, and ambition—values that align perfectly with United’s brand.

https://airlinesofficesworld.c....om/airlines-offices/

Alaska Airlines operates from Terminal 7 at JFK. This terminal is known for its efficient layout, decent amenities, and manageable size compared to JFK’s larger and busier terminals. Originally built in the 1970s and once the home of British Airways and United Airlines, Terminal 7 today serves several international carriers in addition to Alaska Airlines.

https://airlinesofficesworld.c....om/alaska-airlines-j

After you’ve checked in and dropped your bags, the next step is heading through security. Terminal 5 offers both regular TSA lines and TSA PreCheck, which allows eligible passengers to breeze through security more quickly. The lines at LAX can get long, so it’s a good idea to arrive early and plan for extra time at security, especially during peak hours.
https://airlinesofficesworld.c....om/frontier-airlines

Southwest Airlines’ check-in process at STL is straightforward and efficient. Passengers can check in at one of the many self-service kiosks located throughout the terminal or at the airline’s ticket counter. Southwest is known for its streamlined check-in process, and at STL, travelers can expect a smooth and quick experience. The airline also offers online check-in through its website or mobile app, allowing passengers to save time by skipping the check-in counter altogether.
https://airlinesofficesworld.c....om/southwest-airline

When you're flying Frontier Airlines in or out of Dallas/Fort Worth International Airport (DFW), knowing what to expect at the terminal can save you time and stress. DFW is one of the busiest airports in the United States and a major travel hub in Texas. Frontier Airlines, known for its low-cost fares and à la carte pricing model, operates out of Terminal E at DFW.
https://airlinesofficesworld.c....om/frontier-airlines