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Keys route planner

Driving the Overseas Highway: Miami to Key West through the Keys

Treat the drive as part of the trip and give it a night. Leave Miami early, navigate by mile markers, and expect two-lane single-file stretches where one crash can stall everything; the Seven Mile Bridge near Marathon is the scenic centerpiece. In Key West, base in Old Town at The Marker or the quieter Marquesa so you can walk to Hemingway's home, Fort Zachary Taylor's beach, the lighthouse, and the butterfly conservatory without moving the car. If you only have one day, drive down early, keep Key West to a half day, and accept you'll be tired — but the far better version is an overnight so you own the town at sunrise and sunset.

Plan the next step
By Florida Guide editorsReviewed against primary and official sourcesHow we review
7 checked placeschecked September 12, 2026

Positioning

Use this guide when

Best for
  • Travelers deciding whether to day-trip or overnight in the Keys.
  • Drivers who want the timing, mile-marker, and traffic reality before leaving Miami.
  • Planners deciding what to actually do once they reach Key West.
Tradeoffs
  • A same-day round trip is possible but wastes the best of Key West and risks a night drive back up a single road.
  • An overnight costs a Key West room but buys the town after the day-trippers and cruise crowds leave.
  • The drive itself is the scenery, so rushing it to 'get there' misses the point of the Keys.

Treat the drive as part of the trip and give it a night. Leave Miami early, navigate by mile markers, and expect two-lane single-file stretches where one crash can stall everything; the Seven Mile Bridge near Marathon is the scenic centerpiece. In Key West, base in Old Town at The Marker or the quieter Marquesa so you can walk to Hemingway's home, Fort Zachary Taylor's beach, the lighthouse, and the butterfly conservatory without moving the car. If you only have one day, drive down early, keep Key West to a half day, and accept you'll be tired — but the far better version is an overnight so you own the town at sunrise and sunset.

Comparisons

Choose the lane by constraint

Day trip vs overnight in Key WestThe difference is the town after hours and a safe, unhurried drive.
  • Same-day round trip: Do a day trip only if Key West is a bucket-list checkmark and you accept a long, tiring drive down and back on one road in a single day.
  • Overnight: Stay a night when you want Old Town after the day crowds leave, a real beach afternoon, and a morning drive back instead of a night one.
  • Tie breaker: If you would be driving back up US-1 after dark, don't — book the overnight.
Beach day vs town-and-museum dayFort Zachary Taylor's beach versus Old Town's homes and landmarks.
  • Beach day: Spend the afternoon at Fort Zachary Taylor Historic State Park, Key West's best beach, when you want swimming and shade over sightseeing.
  • Town-and-museum day: Walk Old Town for Hemingway's home, the lighthouse, and the butterfly conservatory when the landmarks matter more than beach time.
  • Tie breaker: With a full day, do the homes and landmarks in the cooler morning and the beach in the afternoon.

Quick plan

Leave early, navigate by mile markers, and stay a night in Old Town.

Step 1Leave Miami earlyBeat traffic on the single road, navigate by mile markers (MM 0 in Key West), and stop for the Seven Mile Bridge.
Fort Zachary Taylor Historic State Park
Step 2Base in Old TownStay at The Marker or The Marquesa so you can walk to Hemingway's home, the lighthouse, and dinner without the car.
The Marker Key West Harbor ResortThe Marquesa Hotel
Step 3Drive back in the morningDo the landmarks in the cool morning, the beach in the afternoon, and drive US-1 north in daylight, not after dark.
Ernest Hemingway Home & Museum

Decision toolkit

Use cases and default picks

ScenarioWorried about traffic on one roadUS-1 is a single road in and out with two-lane stretches, so leave early, avoid holiday weekends, and build slack; one crash can stall the whole chain.
ScenarioWant a beach and shadeFort Zachary Taylor is Key West's best beach, with shade and swimming, for about $6 per vehicle plus a small per-person surcharge as of 2026.
ScenarioA hot or rainy afternoonChoose the butterfly conservatory or the air-conditioned Keeper’s Quarters museum for an indoor visit. Save the lighthouse’s 88-step climb and exposed viewing area for suitable weather.
Rain and heat planAfternoon storms are common in the Keys in summer, and there's no fast way off the island chain, so keep indoor Old Town anchors ready and don't count on a same-day drive back through a storm.
  • On a wet afternoon, choose the butterfly conservatory or Keeper’s Quarters museum while open; avoid the lighthouse climb during storms and arrange the trip there around the weather.
  • If a storm sets in, an overnight beats driving back up a single flooded road after dark.
The Southernmost Point buoy marker at the edge of Key West, FloridaBest Key West baseThe Marker Key West Harbor ResortA walkable waterfront resort on the Historic Seaport, a few blocks off Duval, so you can leave the car once you arrive.The Southernmost Point buoy marker at the edge of Key West, FloridaBest signature stopErnest Hemingway Home & MuseumHemingway's home and its six-toed cats ($19 adult as of 2026) is the definitive Key West visit, best in the cooler morning.The Southernmost Point buoy marker at the edge of Key West, FloridaBest Key West beachFort Zachary Taylor Historic State ParkThe best swimming beach in town with shade, about $6 per vehicle plus a small per-person surcharge as of 2026.The Southernmost Point buoy marker at the edge of Key West, FloridaBest quiet baseThe Marquesa HotelA restored 1880s boutique hotel a block off Duval, the adults-oriented, quieter alternative for an Old Town stay.The Southernmost Point buoy marker at the edge of Key West, FloridaBest rainy-hour stopKey West Butterfly & Nature ConservatoryA glass-domed conservatory ($17.50 adult before sales tax, checked September 2026) that works when the beach doesn't, right in Old Town.

Editorial read

The drive: distance, time, and mile markers

The single most useful thing is to know how long it really takes and how to navigate it.

CalibrationKeep the drive framed as a full-day, single-road leg so readers plan enough time.

Editorial read

One road in, one road out

The Keys' single-highway reality shapes when you drive and whether you overnight.

CalibrationKeep the one-road constraint front and center so readers don't plan a rushed round trip.

Editorial read

What to do at the end

Old Town is walkable, so base there and leave the car.

CalibrationKeep the Old Town anchors distinct by payoff — home, beach, landmark, indoor — so each earns its stop.
Partner links

Compare bookable Key West activities

Finish the Overseas Highway timing and overnight decision above, then compare Key West activities that leave enough margin for parking, check-in, and the drive back.

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Places in this guide

FAQ

Common decisions

QuestionHow long does it take to drive from Miami to Key West?About 160 miles and roughly 3.5 to 4 hours nonstop, but realistically a full day with stops and traffic. US-1 is a single road with two-lane stretches and the Seven Mile Bridge, so leave early and plan an overnight rather than a rushed same-day return.
QuestionIs there a toll on the Overseas Highway?No, the main US-1 Overseas Highway is toll-free the whole way to Key West. The only toll is on the optional Card Sound Road shortcut into north Key Largo, which most drivers skip.
QuestionShould I day-trip Key West or stay overnight?Stay overnight if you can. A same-day round trip means a long, tiring drive down and back on one road, often ending after dark. An overnight in walkable Old Town lets you see Hemingway's home, Fort Zachary Taylor's beach, and the lighthouse without the car and drive back refreshed in the morning.
QuestionWhat's the best beach in Key West?Fort Zachary Taylor Historic State Park has the best swimming beach in town, with shade and a 19th-century fort, for about $6 per vehicle plus a small per-person surcharge as of 2026. It's an easy stop from an Old Town base.

Related guides

Read next

Region decisionFlorida by region: the Atlantic coast vs the Gulf coast vs the KeysFlorida is too spread out to see in one trip, so pick a region and base, not a statewide loop. The Atlantic coast is about surf, historic St. Augustine, and the Palm Beach–to–Fort Lauderdale strip; the Gulf coast is about calmer, warmer water and the beach towns of Sarasota, Naples, and Sanibel; the Keys are a separate long drive to Key West. Add the Everglades as a nature day from either the Miami side or the Gulf side. Choose by the water you want, the season, and how much driving you will tolerate.Gulf-coast base plannerWhere to base on Florida's Gulf coast: Naples vs Sarasota vs SanibelFlorida's Gulf coast often has gentler surf than the Atlantic and offers three distinct bases. Naples is the walkable, upscale town base — Fifth Avenue South, a botanical garden, and a zoo, though the historic pier is closed and rebuilding. Sarasota pairs beaches with the Ringling museum estate and Selby Gardens and is the most culture-heavy. Sanibel is the quiet barrier island for shelling, the Ding Darling wildlife refuge, and the Shell Museum, operating again after Hurricane Ian, with some trails and facilities still restricted. Pick by whether you want a town, culture, or island nature.

Sources

Checked references