Question : How long are most people's visits to Lisbon when they fly in from Tucson?
Answer : Passengers from TUS to LIS stay 19 days on average.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : The best day to fly on a budget this month is Saturday. Being flexible with your travel days garners you even more savings during your booking.
Question : Which airline is offering the cheapest round-trip flight from TUS to LIS?
Answer : Check out, as they have been booking customers at lower fares than most.