Southwest

It's been nearly 5 decades since Herb Kelleher and Rollin King reputedly sketched up the concept for Southwest Airlines on a cocktail napkin in a San Antonio saloon, forever transforming the world of domestic US air travel.

What worked in the late 1960s still works today: low-cost flights with quick turnaround, excellent service, first-rate customer service, and a safety record that is unblemished to this day. Southwest now travels to more than 100 destinations in 40 states, as well as Puerto Rico, Mexico, Central America, and the Caribbean, and it continues to inspire the aviation industry's biggest personalities.

Baggage Fee: 2 Bags Free

Region: US, Caribbean, Latin Amerca

Website: southwest.com