Can You See Cuba from Key West? The 90-Mile View

Yes—but only under perfect conditions. On an exceptionally clear day, you might glimpse the Cuban coastline from Key West, Florida. The distance to Havana is roughly 90 miles (145 km) across the Florida Straits.

Why It's Rare

• Earth's curvature: At sea level, the horizon is only ~3 miles away. Even from Key West's highest points (~18 ft), the geometric horizon is ~5 miles. Cuba is far beyond that.
• Atmospheric refraction: Can bend light slightly, occasionally extending visible range
• Weather/haze: Humidity, salt spray, and marine layer typically obscure distant views
• Elevation matters: You'd need significant height (like a tall building or aircraft) for a realistic chance

Best Vantage Points in Key West

• Top of the Key West Lighthouse (86 ft)
• Upper decks of sunset cruise boats
• Rooftop bars (e.g., Sunset Key, Casa Marina)

Reality check: Most visitors never see Cuba from Key West. The "90 miles to Cuba" signs are symbolic—celebrating proximity, not visibility. For actual views, take a legal charter flight or ferry (when operating) from Key West to Havana (~45 min flight).