DriveCosts

Road trip cost

How Much Does It Cost to Drive From St. Louis to Miami?

At 1254 miles and roughly 20 hr 12 min of driving, the route from St. Louis, MO to Miami, FL is a long-haul trip. Budget for multiple fuel stops, food, and possibly an overnight stay — gas alone can run well over a hundred dollars depending on your vehicle.

Cross-countryLong haul
  • Updated for 2026
  • US avg fuel prices
  • EPA-style MPG
  • EV rates vary by state
  • US units
Distance

1254 mi

Driving time

20 hr 12 min

Fuel stops

3

EV charges

5

Route overview1254 mi

3 suggested fuel stops

Key takeaway

Plan on about $155 in gas one-way in a 28 MPG sedan, with 3 fuel stops and roughly 20 hr 12 min behind the wheel.

Drive intensity

Cross-country

Consider an overnight stop.

Estimate your trip cost

Pre-filled with the St. Louis → Miami distance.

miles
mpg
$/gal

Estimated Trip Cost

$0.00

Per Person

$0.00

Gallons

0.00gal

Total miles: 1,254 (one way).

How we estimate this trip

Distance
Great-circle distance between city centers × 1.18 road factor, rounded to whole miles.
Fuel cost formula
(miles ÷ MPG) × price per gallon, computed one-way unless noted.
Gas price assumption
Recent US average retail regular gas (AAA-style baseline).
EV charging assumption
Combined MPGe with average US residential electricity rate.
Tolls & weather
Not included — add manually for I-95, I-90 and mountain routes.
Driving time
Estimated at typical highway average speeds; excludes long breaks.

Sources & assumptions

  • EPA fuel economy data — City / highway / combined MPG and MPGe baselines.
  • U.S. Department of Energy (fueleconomy.gov) — Vehicle efficiency and EV range references.
  • AAA gas price trends — Recent national and regional retail fuel averages.
  • EIA electricity rates — Average residential per-kWh prices used for EV charging.

We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.

Fuel cost by vehicle type

Estimated one-way fuel cost at $3.45/gal (US average). Adjust for your local price.

Compact car· 35 MPG · 35.8 gal$123.61
Sedan· 28 MPG · 44.8 gal$154.51
SUV· 22 MPG · 57.0 gal$196.65
Pickup truck· 18 MPG · 69.7 gal$240.35

Cost at different gas prices

Assuming a 28 MPG sedan over the 1254-mile route.

Gas at $3.15/gal

$141.07

one way · ~44.8 gal

Gas at $3.45/gal

$154.51

one way · ~44.8 gal

Gas at $3.85/gal

$172.43

one way · ~44.8 gal

Fuel & charging stops

3 fuel stops one-way

A typical 28 MPG sedan with a 12.5-gallon tank covers about 350 miles per fill-up. Plan 3 stops along the way and fuel up before any remote stretches.

5 DC fast-charges for most EVs

Assuming a realistic 230-mile highway range, plan 5 DC fast-charging stops. Tesla Superchargers and Electrify America have strong coverage on most US corridors.

Halfway stop suggestion

Midpoint

Montgomery, AL

Roughly halfway between St. Louis and Miami. A natural place to fuel up, grab a meal, swap drivers, or stop overnight on longer drives.

Route personality

Cross-country haulMetro-to-metroBeach destinationToll corridorOvernight-friendly

Florida driving context

  • Florida turnpikes, I-95 and the Bee Line are heavy toll corridors — a SunPass saves time and money.
  • Summer heat and afternoon thunderstorms slow traffic; AC use can drop MPG by 5–10%.
  • Theme-park and beach traffic spikes weekends and school breaks — leave early.

City insights

St. Louis, MO

  • St. Louis traffic is heaviest 7–9 am and 4–7 pm — time your arrival around it.

Miami, FL

  • Miami traffic is heaviest 7–9 am and 4–7 pm — time your arrival around it.
  • Miami draws year-round visitors — book parking and lodging ahead in peak weeks.
  • Beach access roads near Miami fill early on weekends; weekday arrivals are easier.

Best stops along the way

  • Montgomery, AL sits near the midpoint — natural fuel, food and restroom stop.
  • Pick a sit-down meal stop around the 2.5-hour mark to reset focus and avoid drive-thru fatigue.
  • Scenic pull-offs and coastal overlooks add 15–30 min but break up the monotony on tourism corridors.
  • Truck-stop plazas (Pilot, Love's, TA) reliably have fuel, food and clean restrooms every 60–90 miles.

Seasonal notes

Summer

Peak beach and theme-park traffic; expect 20–40% longer drive times around weekends.

Hurricane season (Jun–Nov)

Tropical storms can cause sudden closures and price spikes — check NOAA before long Southeast or Gulf drives.

Recommendations for this route

  • Pick up the correct toll transponder (E-ZPass / SunPass / TxTag) before you leave.
  • Split the drive across a meal stop or overnight — fatigue starts hurting reaction time after 5 hours.
  • Run tires at the door-jamb PSI and pre-cool the cabin with AC on low — both add 1–3 MPG.

Is it cheaper to fly or drive?

Flying is often cheaper for one person at this distance. Driving makes sense for families, road-trippers, or anyone bringing gear.

A one-way drive uses about $155 in gas (28 MPG, $3.45/gal). A typical short domestic flight costs $80–$220 per person plus $30–$60/day for airport parking and any baggage fees.

Weather & best time

Late spring and early fall avoid both crowded summer beach traffic and winter storms.

  • • Summer thunderstorms and hurricane season (June–November) can cause delays.

Tolls

Tolls are likely on parts of the route — usually under $20 each way, but a transponder saves time.

Best vehicle

Comfort matters more than MPG on this distance. A larger sedan, hybrid SUV, or full-size SUV for families works well.

Driving difficulty

Cross-country · 20 hr 12 min

Very high — strongly consider an overnight stop rather than pushing through in a single day.

Overnight stop recommended

At 20 hr 12 min of driving, splitting the trip across two days is safer and more enjoyable. Budget hotels along the route typically run $70–$130/night.

About the drive from St. Louis to Miami

This 1254-mile route between St. Louis, MO and Miami, FL is a popular drive in the region. Expect roughly 20 hr 12 min behind the wheel under normal traffic conditions.

Fuel-saving tips

  • Keep your speed near 65 mph — fuel economy drops sharply above 70.
  • Fill up before mountain or desert stretches; remote stations charge a premium.
  • Use GasBuddy or AAA to spot cheap stations along your route before you leave.
  • Plan to avoid rush hour in both cities — stop-and-go traffic can cut highway MPG by 20%.

Frequently asked questions

How long does it take to drive from St. Louis to Miami?

The drive is about 1254 miles and takes roughly 20 hr 12 min under normal traffic. Add buffer for stops, construction, and rush hour around either city.

How much gas does the trip use?

In a 28 MPG sedan, expect about 44.8 gallons one way. A 22 MPG SUV would use roughly 57.0 gallons.

What's the typical fuel cost?

At the US average of $3.45/gal, a 28 MPG vehicle costs about $154.51 one way. Round trip roughly doubles that. Use the calculator above for your exact MPG and local gas price.

How many fuel or charging stops will I need?

A typical gas sedan needs about 3 fuel stops one way. A modern EV with ~230 miles of highway range needs about 5 DC fast-charges.

Is it cheaper to drive or fly from St. Louis to Miami?

Flying is often cheaper for one person at this distance. Driving makes sense for families, road-trippers, or anyone bringing gear.

What's the best time of year to drive this route?

Late spring and early fall avoid both crowded summer beach traffic and winter storms.

Where's a good halfway stop?

Montgomery, AL is roughly halfway and makes a natural fuel, food, or overnight break.

Best vehicles for this route

Estimated 1254-mile fuel cost for each pick at average US prices. Tap any vehicle for a full cost breakdown.

Cheapest to drive

Toyota Prius

57 MPG · hybrid

~$76

est. one-way fuel cost

See full breakdown

Best EV

Lucid Air

134 MPGe · ev

~$50

est. one-way charging cost

See full breakdown

Best sedan

Hyundai Elantra

37 MPG · sedan

~$117

est. one-way fuel cost

See full breakdown

Best SUV for comfort

Nissan Rogue

33 MPG · suv

~$131

est. one-way fuel cost

See full breakdown

Best truck for cargo

Ford Maverick

26 MPG · truck

~$166

est. one-way fuel cost

See full breakdown

Related routes

More routes like St. Louis to Miami

Reverse drives, connecting routes and regional alternatives — each with distance and driving cost at current US gas prices.

Reverse drive

Miami to St. Louis driving cost

1254 mi · 20.2 h

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