EasyJet's orange livery has been synonymous with price and convenience in recent years, as the company has expanded to become the world's leading budget airline, serving destinations in over 30 countries. The company has used the phrase “making flying as affordable as a pair of jeans,” and that’s not just designer jeans, with flights from Paris to London for less than $40.

EasyJet passengers are more likely to fly to their destination city's main airport, which has contributed to the company's popularity among business travelers. Furthermore, EasyJet operates easyJetHotels, which connects clients booking flights with hotels at their destination, allowing them to instantly book a cheap and comfortable vacation package online.

Baggage Fee: $12.75-$66.54

Region: Europe, N. Africa, Mideast

Website: easyjet.com

Founded at JFK in 2000, JetBlue is now a global, award-winning travel company. JetBlue has grown to become the sixth-largest airline in the United States by combining low-cost routes to 101 destinations with customer service and a comfortable experience that doesn't leave you feeling like you've been crammed into a flying sardine can.

With low fares and in-flight facilities such as free refreshments, live in-flight entertainment, and plenty of legroom, the company has become a viable rival for both large airlines and low-cost carriers. JetBlue is far from a pond-hopping domestic airline, with international destinations in the Americas that include Cuba, Ecuador, Jamaica, Peru, and others.

Baggage Fee: $25

Region: US, Lat. America, Caribbean

Website: jetblue.com

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

The term "Norwegian" may be a misnomer, as this airline has grown to become the eighth largest airline in Europe, the largest in Scandinavia, and the sixth largest low-cost airline in the world.

Norwegian has earned numerous industry awards for its service and passenger experience and has ordered over 100 new Boeing 737 MAX aircraft to add to its fleet. Norwegian offers one of the most comprehensive flight maps of any low-cost carrier, serving 150 destinations in 35 countries across four continents. Simply put, Norwegian is much more than just Norway, and it is much more than a low-cost airline.

Baggage Fee: 40GBP ($56)

Region: Europe, Asia, US, Mideast

Website: norwegian.com

Clive Beddoe and a group of like-minded entrepreneurs founded WestJet in 1996, with three planes, five routes, and 220 pleasant WestJetters. Today, 14,000 WestJetters are dedicated to transporting over 22 million guests each year on over 700 flights per day, using a fleet of more than 150 aircraft.

With 109 destinations in the United States and Canada, as well as long-haul flights to Europe, Latin America, and the Caribbean, the airline crisscrosses Canada and is the country's second largest carrier after Air Canada. WestJet has comprehensive in-flight entertainment options such as live TV and WiFi, as well as rather extensive buy-on-board meal offerings for a low-cost airline.

Baggage Fee: $25

Region: Americas, Europe, Hawaii

Website: westjet.com

In 2016, Alaska Airlines purchased Virgin America, the low-cost subsidiary of Virgin Airlines, one of the industry's most acclaimed carriers. The airline still serves a dozen locations in the United States and Mexico, and it is recognized for its exceptionally luxurious cabin and sophisticated in-flight entertainment system. Furthermore, unlike some other low-cost carriers, it offers first-class seating.

Alaska Airlines, Virgin America's parent business, is known for providing excellent customer service and has received the best level of customer satisfaction of any traditional airline for the past ten years.

Baggage Fee: $25

Region: The Americas, Hawaii

Website: alaskaair.com

Customers may fly across Australia with ease on this Qantas-owned airline, which also serves as a gateway to East Asia and Oceania.

On domestic routes, the airline offers a single class service with buy-on-board food and drinks, while on foreign flights, it offers a business class. For a low-cost airline, the airline boasts substantial in-flight entertainment, including iPads loaded with movies and games that are supplied to customers for free on international flights and for a price on domestic flights.

JetStar also has an intriguing "price beat guarantee," which allows buyers to acquire tickets for 10% less than a competitor's listed pricing.

Baggage Fee: $32 - $160

Region: Australia, E. Asia, Oceania

Website: jetstar.com

RyanAir marvel is much more than a successful low-cost carrier. The airline is so popular with travelers that it carried more passengers in 2016 than any other European airline and more overseas passengers than any competitor.

With a fleet of almost 400 Boeing 737s, it serves destinations in 32 European countries, as well as Morocco and Israel. Critics argue that much of RyanAir's success stems from a cost-cutting mindset that extends beyond no-frills flying, resulting in a passenger experience and customer service quality that falls short of many competitors. Nonetheless, the corporation is working to make the airline more family-friendly, and it has introduced long-haul routes from Europe to the Americas.

Baggage Fee: $35-$55

Region: Europe, Israel, Morocco

Website: ryanair.com

IcelandAir is a major airline that operates flights to, from, through, and within Iceland. They offer safe, dependable flights with great service to major cities on both sides of the Atlantic.

Passengers can now fly to dozens of European destinations, as well as places in Canada and the United States. The airline offers three distinct booking classes: two economy classes and one business class. All flights have in-flight touch screen monitors with a variety of entertainment options. The airline also takes pleasure in being family-friendly, offering a huge selection of children's movies in flight.

Baggage Fee: $50-$106

Region: Europe and North America

Website: icelandair.com

AirAsia, based in Malaysia, can make the world's largest continent your oyster, with 165 destinations in 25 countries. AirAsia currently flies across the continent as well as to Australia, London, and Honolulu. The airline maintains low prices by utilizing some of the industry's most efficient productivity and operating costs. However, this does not imply a low-frills experience, since the airline has earned numerous honors for its service and overall product.

AirAsia is taking the first steps towards starting its own frequent flyer program. It signed an agreement to start a joint venture with financial services company Tune Money to launch a program called "BIG". Under this scheme, it will issue AirAsia loyalty points and third-party merchants. The points can then be used to redeem AirAsia flights.

Baggage Fee: Varies by Weight

Region: Asia and Australia

Website: airasia.com