As of September 2021, there were 18 major airlines operating in the United States aviation sector. These airlines are classified as “major” based on their annual revenue, and they account for the majority of air traffic in the country.
In addition to the major airlines, there are also many regional airlines, charter airlines, and cargo airlines that operate in the United States. These smaller airlines play an important role in connecting smaller cities and towns to larger hubs, and in transporting goods and cargo across the country.
Overall, the United States is home to one of the largest and most complex aviation sectors in the world, with a vast network of airports, airlines, and support services. The aviation sector contributes significantly to the country’s economy and plays a crucial role in connecting people and businesses across the country and around the world. We have listed the top 10 airlines in the U.S. based on no particular order.
- Delta Air Lines: Delta is known for its extensive network, which includes both domestic and international destinations. The airline offers a range of accommodations, including Delta One, which features lie-flat seats, personal entertainment systems, and premium dining. Delta also offers a frequent flyer program called SkyMiles, which allows passengers to earn and redeem miles for flights and other rewards.
- Southwest Airlines: Southwest is known for its low fares and no-frills approach to air travel. However, the airline offers some unique features, such as open seating and no change fees. Southwest also operates an extensive network of domestic routes and offers a frequent flyer program called Rapid Rewards.
- United Airlines: United is one of the largest airlines in the world, with a network that spans the globe. The airline offers a range of accommodations, including United Polaris, which features lie-flat seats, personal entertainment systems, and premium dining. United also offers a frequent flyer program called MileagePlus.
- American Airlines: American is another large airline with a global network. The airline offers a range of accommodations, including Flagship First, which features lie-flat seats, personal entertainment systems, and premium dining. American also offers a frequent flyer program called AAdvantage.
- Alaska Airlines: Alaska is known for its customer service and on-time performance. The airline operates an extensive network of domestic and international routes and offers a frequent flyer program called Mileage Plan. Alaska also offers unique features, such as the ability to bring a companion on a flight for a reduced fare.

- JetBlue Airways: JetBlue is known for its low fares and customer-friendly policies. The airline offers a range of accommodations, including Mint, which features lie-flat seats, personal entertainment systems, and premium dining. JetBlue also offers a frequent flyer program called TrueBlue.
- Hawaiian Airlines: Hawaiian operates a network of routes to Hawaii and other destinations in the Pacific. The airline offers a range of accommodations, including Extra Comfort, which features extra legroom and other amenities. Hawaiian also offers a frequent flyer program called HawaiianMiles.
- Allegiant Air: Allegiant is a low-cost airline that operates a network of domestic routes. The airline offers a range of accommodations, including Priority Boarding and Allegiant Baggage Service. Allegiant also offers a frequent flyer program called myAllegiant.
- Spirit Airlines: Spirit is another low-cost airline that operates a network of domestic and international routes. The airline offers a range of accommodations, including Big Front Seat, which features extra legroom and other amenities. Spirit also offers a frequent flyer program called Free Spirit.
- Frontier Airlines: Frontier is a low-cost airline that operates a network of domestic and international routes. The airline offers a range of accommodations, including Stretch seating, which features extra legroom and other amenities. Frontier also offers a frequent flyer program called Frontier Miles.
Overall, each of these airlines offers a range of features, accommodations, and services to meet the needs of different types of travelers. From low-cost options to premium accommodations, there is something for everyone among these top 10 airlines in the United States.





