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Trip from Dellwood, MO to St. Louis, MO

Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards

Drive Time

19m

Distance

12.3 mi

20 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$2

one way

EV Charging

Unknown

Best Time to Leave

4 AM
0h 18m ★
6 AM
0h 20m
8 AM
0h 23m
10 AM
0h 21m
12 PM
0h 21m
3 PM
0h 21m
5 PM
0h 23m
8 PM
0h 19m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Dellwood, MO, MO

Dellwood, MO

Momo King

Trip Overview

This short 12.3-mile drive from Dellwood, MO, to St. Louis, MO, is easily manageable in about 19 minutes, making it an ideal day trip. The journey involves a mix of major roadways, including I-70 and West Florissant Avenue, with nearly half of the drive on highways. With a low estimated fuel cost of just $2, this route is incredibly budget-friendly. The Midwest scenery is consistent throughout, and since there are no designated stops, you have complete flexibility. This is a straightforward trip perfect for a quick commute or a brief excursion within the St. Louis metropolitan area.

Main Roads

Road Distance Duration
I 70 5.9 mi 8m
West Florissant Avenue 1.7 mi 2m
Andy Gammon Memorial Highway 1.6 mi 2m
Lucas-Hunt Road 1.2 mi 2m
North Tucker Boulevard 1.1 mi 2m
Chambers Road 0.3 mi <1m
South Tucker Boulevard <0.1 mi <1m
Market Street <0.1 mi <1m
Longest stretch: I 70 — 5.9 mi, about 8m

Turn-by-Turn Driving Directions

Step-by-step road directions between Dellwood, MO and St. Louis, MO.

1

Start on Chambers Road

0.3 mi · 29 sec · Chambers Road
2

Turn right onto West Florissant Avenue

1.7 mi · 2 min · West Florissant Avenue
3

Turn right onto MO U

1.2 mi · 2 min · Lucas-Hunt Road
4

Take the ramp

0.2 mi · 14 sec
Use the left lane.
5

Merge onto I 70

5.9 mi · 8 min · I 70
Use the straight / slight right lanes.
6

Continue on I 70

1.5 mi · 2 min · Andy Gammon Memorial Highway
Use the straight / slight right lanes.
7

Keep slight right at fork onto I 70

267 ft · 6 sec · Andy Gammon Memorial Highway
Toward Illinois Use the straight / slight right lanes.
8

Take the exit

0.3 mi · 38 sec
Exit 249B Toward Tucker Boulevard, Downtown Saint Louis
9

Continue on North Tucker Boulevard

1.1 mi · 2 min · North Tucker Boulevard
10

Continue on South Tucker Boulevard

396 ft · 21 sec · South Tucker Boulevard
11

Turn right onto Market Street

86 ft · 2 sec · Market Street
12

Arrive at destination

Market Street

Heads-up: tricky spots

5 of 7

5 decision points cluster between mile 3.2 and 12.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

5
3.2 mi into trip | ~5m in

Take the ramp

Lane positioning matters here

Use the left lane.
5
3.4 mi into trip | ~5m in | I 70

Merge onto I 70

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
7
10.8 mi into trip | ~15m in | I 70 / Andy Gammon Memorial Highway

Keep slight right at fork onto I 70 / Andy Gammon Memorial Highway toward Illinois

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Toward Illinois
7
10.9 mi into trip | ~16m in

Take the exit toward Tucker Boulevard, Downtown Saint Louis

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Exit 249B Toward Tucker Boulevard, Downtown Saint Louis
5
12.3 mi into trip | ~19m in | Market Street

Turn right onto Market Street

Navigation decision point

Fuel & Cost

Regular Gas

$1.92 one way

$3.85 round trip

$3.97/gal 25.4 MPG avg 4 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $2.11 $4.22
premium $4.89 $2.37 $4.73
diesel $5.61 $2.72 $5.43

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$2

Estimated CO2 emission: 4.3 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $1 in charging · 0 stops · 75% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 3.7 0 $1.29 $0.59
Efficient EV 3.1 0 $1.08 $0.49
EV Truck/SUV 4.9 0 $1.72 $0.79

Gas CO2

4 kg

EV CO2

1 kg (75% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 15, 2026

Origin

Dellwood, MO

Afternoon in Dellwood on Saturday

Local time

3:04 PM

CDT

Current temp

58°F

Unavailable

Live forecast

Destination

St. Louis, MO

Afternoon in St. Louis on Saturday

Local time

3:04 PM

CDT

Current temp

74°F

Unavailable

Live forecast

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

16 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

19m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

Expect a mixed drive on this 12.3-mile route. Approximately 48% of your journey will be on highways, specifically I-70, which offers a longer stretch of uninterrupted driving at 5.9 miles. The remainder of the drive will likely involve navigating local streets like West Florissant Avenue and the Andy Gammon Memorial Highway. This blend means you'll experience both higher-speed travel and more typical urban road conditions, requiring you to adjust your driving style accordingly as you transition between these different road types.

48% highway, the rest on surface roads — varied driving throughout.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 5.9 mi on I 70.

How Hard Is This Drive?

5/10

This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes around 3.2 miles in.

Driving Effort 5/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 12.3 miles you will encounter 7 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: at 3.2 miles: Lane positioning matters here; at 3.4 miles (I 70): Merge point - match speed before joining. Lane positioning matters here; at 10.8 miles (I 70 / Andy Gammon Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between Dellwood, MO and St. Louis, MO, road signs point toward Illinois and Saint Louis.

Illinois

10.8 mi in | ~15m | via I 70

Saint Louis

10.9 mi in | ~16m

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 19m. Total distance: 12.3 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

19m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (48%). Some complex stretches to watch for.

Scenic Drive

Mixed highway & surface route profile with national parks nearby.

Frequently Asked Questions

The longest stretch is about 5.9 miles on I 70. The full list of main roads is in the Roads section above.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 3.2 miles: Lane positioning matters here; at 3.4 miles (I 70): Merge point - match speed before joining. Lane positioning matters here; at 10.8 miles (I 70 / Andy Gammon Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.

Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at St. Louis, MO before heading back.

How this page is built

Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.

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