RyanAir

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