Quick Verdict
Pick Key West if Mallory Square sunsets, key lime pie, and barefoot Duval bar crawls trump neon. Pick Las Vegas if the Sphere, celebrity-chef tasting menus, and Red Rock day drives beat island pace.
🏆 Key West wins 74 OVR vs 69 · attribute matchup 4–3
Key West
United States
Las Vegas
United States
Key West
Las Vegas
How do Key West and Las Vegas compare?
Both are end-of-itinerary places — somewhere you go to misbehave for three days, not anchor a two-week trip — but the misbehavior is wildly different. Key West is barefoot and analog: the Mallory Square sunset celebration with its juggler and bagpiper regulars, Sloppy Joe's Bar where Hemingway drank, key lime pie at Kermit's, and a 4-mile-by-2-mile island you can entirely cover by bicycle. Las Vegas is engineered spectacle — the Sphere's 16K wraparound exterior on Las Vegas Boulevard, $400-a-head omakase at Wing Lei, the cold-AC blast every time you walk through casino doors, and Red Rock Canyon's 13-mile scenic loop a 30-minute drive from the Strip.
Mid-range days are $350 in Key West versus $300 in Vegas — Key West costs more because everything trucked in over the Overseas Highway is marked up, while Vegas resorts run loss-leader rates to get you to the gaming floor. A two-cocktail Duval Street round runs $32; a full dinner at a Strip food hall is the same. Key West wins on walkability (you genuinely don't need a car), tropical weather (78°F in January when Vegas is 50°F), and quirk; Vegas wins on food range, entertainment density, and day-trip access to Zion (3 hours), the Grand Canyon (4.5 hours), and Death Valley.
Pro tip: fly into Miami and drive the 3.5-hour Overseas Highway for Key West — the Seven Mile Bridge alone is worth it; for Vegas, mid-week stays cut Strip room rates by 40% versus Friday-Saturday. Avoid Key West in September-October (peak hurricane season).
💰 Budget
🛡️ Safety
Key West
Key West is generally a safe small city for tourists. Old Town is well-policed and busy; the main risks are alcohol-related incidents (Duval Street late-night), aggressive scooter rentals on busy streets, sun exposure, and the seasonal hurricane risk. Petty theft from rental scooters and unattended beach belongings does occur. The island's relaxed, party-oriented culture means common sense is your best safety tool.
Las Vegas
The Strip itself is heavily policed and generally safe for tourists, with extensive casino security and LVMPD patrols. Off-Strip neighborhoods vary significantly — areas immediately east and north of downtown can be rough, particularly at night. The main risks on the Strip are pickpockets in crowds, aggressive timeshare touts, and scammers posing as celebrities or show promoters. Drink spiking and gambling-related disputes are reported concerns.
🌤️ Weather
Key West
Key West has a tropical savanna climate moderated by surrounding water — temperatures stay narrowly between 18°C (winter low) and 32°C (summer high) all year. There is a wet season (May–October, with afternoon thunderstorms and hurricane risk) and a dry season (November–April, which is also peak tourist season). Hurricane risk is real — Hurricane Irma in 2017 caused major damage to the Lower Keys.
Las Vegas
Las Vegas has a hot desert climate with extreme temperature swings between summer and winter. Summers are brutally hot — June through August regularly sees highs above 40°C (104°F), with July averages around 42°C. Winters are mild and pleasant, with daytime highs around 15°C. Spring and autumn are the ideal windows: warm, dry, and comfortable. Flash floods are possible year-round but most common in late summer monsoon season.
🚇 Getting Around
Key West
Key West Old Town is small (about 2 miles by 4 miles total island) and the historic centre is almost entirely walkable. Bicycles are the favourite local transport — flat terrain, dedicated bike lanes, and bike racks everywhere. The Duval Loop bus is free; Uber and Lyft operate but are more expensive than in Miami. Renting a car for the week is unnecessary unless you're visiting other Keys; parking in Old Town is scarce and expensive ($4-8/hour, $25/day in city lots).
Walkability: Old Town is one of the most walkable small-city centres in America — flat, compact, shaded by tropical canopy, and full of architectural detail. The full Duval Street walk takes 25 minutes end to end. Bicycles extend the comfortable range to the entire island.
Las Vegas
Getting around the Strip is surprisingly challenging despite its apparent simplicity — the boulevard looks walkable but distances between resorts are much longer than they appear. A mix of the Las Vegas Monorail, the Deuce bus, ride-hailing apps, and your feet will cover most needs on the Strip. A rental car is strongly recommended for off-Strip destinations like Red Rock Canyon, Hoover Dam, and Valley of Fire.
Walkability: The Strip looks walkable on a map but is deceptive — the distance from Mandalay Bay to the Stratosphere is over 4 miles, and summer temperatures make outdoor walking dangerous. Between individual resorts in a cluster (e.g., Cosmopolitan to Bellagio), walking is fine. In summer, use the air-conditioned casino connectors and skywalks linking several properties. Downtown Fremont Street is very walkable within the Experience canopy.
📅 Best Time to Visit
Key West
Jan–Apr, Dec
Peak travel window
Las Vegas
Mar–May, Oct–Nov
Peak travel window
The Verdict
Choose Key West if...
you want a quirky, walkable, southernmost-US tropical destination with Hemingway history, the Conch Republic, the best key lime pie, and a daily sunset ritual
Choose Las Vegas if...
you want 24-hour neon spectacle — Strip megaresorts, the Sphere, celebrity-chef dining, pool clubs, and Red Rock + Grand Canyon + Zion within day-trip range
Key West
Las Vegas
You might also compare
Key WestvsLas Vegas
Try another