How much do flights from Denver to Lisbon cost?

Round-trip fares from Denver to Lisbon have recently been found around $448. That's 35% below the historical average. Prices are checked multiple times daily.

When is the best time to fly to Lisbon?

Right now is notable because: Assumption Day. The current travel window is Aug 15 – Aug 15, and Lisbon has a GO Score of 69/100.

Is Lisbon safe to visit?

Lisbon is a popular travel destination, but safety depends on the specific area and current local conditions. Always check your government's official travel advisories before booking, and follow local guidance once on the ground. Our GO Score tracks flights, weather, currency, and events — not safety directly.

How many hours is the flight from Denver to Lisbon?

Most flights from Denver to Lisbon take 6 to 10 hours, depending on the route, layovers, and whether you fly direct. Check individual airline listings for the exact flight duration from your chosen airport.

What's the cheapest month to visit Lisbon?

Flight prices to Lisbon fluctuate throughout the year. Recent fares from Denver have been found from around $448, 35% below the historical average. Our GO Score updates daily and flags when prices drop below average — bookmark this page to catch the cheapest window.