Upgrades Pay On Europe's No-Frill Carriers

Spanish budget carrier Vueling operates from a hub network in major cities throughout Spain, Europe and northern Africa. It started in 2004 with just two planes and today includes more than 17 Airbus A-320s. It's also one of the few budget airlines to allow pets aboard, providing they are of a certain weight and fit on the floor directly in front of your seat. Additional upgrades on Vueling include GO! Upgrades, which include dedicated check-in counters at key airports and priority boarding for €25. Those looking for even more of an upgrade can select front DUO seats that are unique in the frill-free airline segment: These front-row "jumbo" seats feature no middle seats next to them, extra legroom, free snacks and guaranteed space in the overhead compartment for carry-on. The price for DUO seats runs €60 to €70 per flight segment and are subject to availability, but those accustomed to Business Class will likely feel like it's the best money ever spent once you reach 35,000 feet.