The cheapest flight to Lisbon you can get by boooking 45 days before departure.
The most popular airlines on the route Rome - Lisbon: TAP Air Portugal (TP), Ryanair (FR), Turkish Airlines (TK).
The cheapest flights you can book on the route Ciampino (CIA) - Portela (LIS).
Direct flights last about 2h 55min.
Direct flights available 7 days a week.
Direct flights: Ryanair (FR), TAP Air Portugal (TP), Alitalia (AZ).