When to Fly to Lisbon
Perfect spring weather
Peak: May 1, 2026
Santo Antonio Festival
Peak: June 13, 2026
Whale watching season
Peak: July 15, 2026
Santo Antonio Festival makes this a special time to visit Lisbon
Frequently Asked Questions
How much do flights to Lisbon cost?
Round-trip fares to Lisbon have recently been found from around $516 from Seattle. Prices vary by origin city and time of year. We check fares daily from 1 US cities.
What is the cheapest month to fly to Lisbon?
Flight prices to Lisbon fluctuate throughout the year. Our GO Score algorithm tracks daily prices and flags when fares drop below average. Check back regularly as scores update daily, or browse our "When to Fly" section above for timing insights.
Which US city has the cheapest flights to Lisbon?
Based on recent searches, Seattle (SEA) currently has the cheapest fares to Lisbon at around $516 round-trip. That's 28% below the historical average.
What is the best time to visit Lisbon?
Right now is notable for Lisbon: Santo Antonio Festival. Our GO Score (currently 61/100) combines flight prices, weather, events, and currency data to find the best travel windows.
How long is the flight to Lisbon?
Flight times to Lisbon vary depending on your departure city and whether you fly direct or with connections. Check individual route pages for more details and to compare fares from your nearest airport.
Fares found from Seattle (SEA). Prices may vary.