Question: Low cost airline SmartWings, and its parent airline Travel Service, are based at Václav Havel Airport 12km west of which European capital?
Sentence (from "Václav Havel Airport Prague"): It serves as a hub for Czech Airlines as well as a base for Travel Service including its subsidiary brand SmartWings, and is also a base for low-cost carriers Wizz Air and Ryanair.
Relevant evidence: Yes