Low cost airline SmartWings, and its parent airline Travel Service, are based at Václav Havel Airport 12km west of which European capital?
Václav Havel Airport Prague:  It is located 12 km west of the centre of Prague and 12 km southeast of the city Kladno. 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. SmartWings: SmartWings is a low-cost virtual brand of the Czech airline Travel Service.
i don't know