Los Angeles, CA LAX to Seoul SEL flight with Alaska Airlines

United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.

American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.

Korean Air is the flag carrier and largest airline of South Korea, headquartered in Seoul. Established in 1969, it operates an extensive network of domestic and international passenger and cargo flights. Korean Air is a founding member of the SkyTeam alliance and SkyTeam Cargo. The airline is recognized as a 5-star airline by Skytrax and is among the top 20 airlines globally in terms of passengers carried. Its fleet includes aircraft from both Boeing and Airbus, serving destinations across Asia, Africa, Europe, South America, and North America.

Qatar Airways is the national airline of Qatar, headquartered in Doha and based at Hamad International Airport. Established in 1993 and re-launched in 1997, it has grown into one of the Middle East's largest network airlines, operating an extensive network of international services across Europe, the Middle East, Africa, Asia Pacific, and the Americas. The airline offers passenger and air cargo transportation, along with services like corporate travel, online check-in, and in-flight entertainment. Qatar Airways is a member of the Oneworld alliance and operates a modern fleet of over 200 aircraft. It has received numerous accolades, including \World's Best Airline\" multiple times."

Lufthansa is Germany’s largest airline and one of the leading carriers in Europe, connecting travelers to destinations worldwide from its main hubs in Frankfurt and Munich. Its modern fleet offers a wide choice of travel experiences, from Economy Class with affordable fares and onboard entertainment to Premium Economy, Business Class, and First Class with extra comfort, fine dining, and exclusive lounge access.

All Nippon Airways (ANA) is Japan's largest airline, operating an extensive network of domestic and international flights. Established in 1952, ANA has grown to become a leading member of the Star Alliance, offering high-quality air transportation services. The airline's fleet includes a variety of aircraft, such as the Boeing 787-9 and Airbus A320neo, catering to both short and long-haul routes. ANA's main hubs are Tokyo–Haneda and Tokyo–Narita airports, with secondary hubs in Osaka–Itami and Osaka–Kansai. The airline is committed to providing exceptional service, ensuring a comfortable and reliable travel experience for its passengers.

Alaska Airlines, headquartered in SeaTac, Washington, is a major U.S. airline and the fifth-largest in North America by scheduled passengers carried as of 2024. Along with its regional partners, Horizon Air and SkyWest Airlines, Alaska Airlines operates a route network primarily connecting cities along the West Coast of the United States, including Alaska and Hawaii, to over 100 destinations in the contiguous U.S., the Bahamas, Belize, Canada, Costa Rica, Guatemala, and Mexico. The airline is a member of the Oneworld alliance, offering passengers access to a broad global network. Alaska Airlines is known for its customer service and loyalty program, Mileage Plan, and offers First Class, Premium Class, and Main Cabin seating options. The airline's primary hub is Seattle-Tacoma International Airport. In 2024, its parent company, Alaska Air Group, acquired Hawaiian Airlines.

Air Canada is Canada's largest airline and flag carrier, headquartered in Saint-Laurent, Quebec. Founded in 1937 as Trans-Canada Air Lines, it was renamed Air Canada in 1964 and fully privatized in 1989. As a founding member of Star Alliance, Air Canada provides scheduled passenger and cargo services to over 220 destinations across six continents. The airline operates a diverse fleet, including Airbus A320 family aircraft, Boeing 737 MAX, Boeing 777, and Boeing 787 Dreamliner for both short and long-haul routes. Air Canada also offers leisure travel packages through its subsidiary, Air Canada Vacations.

Hawaiian Airlines, Inc. is Hawaiʻi's largest and longest-serving airline, established in 1929 as Inter-Island Airways. Headquartered in Honolulu, it primarily offers flights between the Hawaiian Islands, and to the U.S. mainland, Asia, Oceania, and other Pacific destinations. Hawaiian Airlines is recognized for its inter-island service and for connecting visitors to Hawaii from the Western U.S. and South Pacific. The airline is also notable for being the oldest U.S. airline without a fatal accident. As of September 18, 2024, Hawaiian Airlines is part of the Alaska Air Group.

Asiana Airlines, established in 1988, is one of South Korea's major airlines, headquartered in Seoul. It operates both international and domestic passenger routes, as well as cargo services, across Asia, Europe, North America, and Oceania. Asiana Airlines is a member of the Star Alliance, offering passengers a wide network and the ability to earn and redeem miles with partner airlines. The airline focuses on customer satisfaction through safety and service, offering various cabin experiences and in-flight amenities. Asiana Airlines maintains its international hub at Incheon International Airport and a domestic hub at Gimpo International Airport.