The cheapest flight to Lisbon you can get by boooking 37 days before departure.
The most popular airlines on the route Vienna - Lisbon: TAP Air Portugal (TP), Swiss (LX), Lufthansa (LH).
The cheapest flights you can book on the route Schwechat (VIE) - Portela (LIS).
Direct flights last about 3h 35min.
Direct flights available 7 days a week.
Direct flights: TAP Air Portugal (TP).