From €97 return per person · cheapest departure 22 Jan
In short: The cheapest return flight from Vienna to Lisbon we found costs €97 per person (departure 22 Jan, Ryanair, nonstop, 3 h 45 min). Prices by departure week range from €97 to €301; the typical price is €196. Source: Google Flights, updated 25 October 2026.
When is it cheapest to fly?
Cheapest: departure 22 Jan · €97 return, per person Most expensive: 25 Dec · €301. Booking the cheapest week saves up to 68 %. Cheapest return fare per person for a departure each week (trips of 7–7 days), economy class. Prices from Google Flights, read weekly; they change daily.
Cheapest departure
💰22 Jan – 29 Jan€97Ryanair · nonstop · 3 h 45 min · return, per person