Origin
O'Fallon, MO
Night in O'Fallon on Thursday
Local time
11:04 PM
CDT
Current temp
75°F
Unavailable
Live forecast
Trip from O'Fallon, MO to Maryland Heights, MO
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 4, 2026 · Editorial standards
Drive Time
26m
Distance
18.9 mi
30 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Good
6 stations
Best Time to Leave
4 AM
0h 24m
★
6 AM
0h 27m
8 AM
0h 31m
10 AM
0h 28m
12 PM
0h 28m
3 PM
0h 28m
5 PM
0h 31m
8 PM
0h 25m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
O'Fallon, MO
Wikimedia Commons
Maryland Heights, MO
Styves Exantus
Trip Overview
O'Fallon to Maryland Heights is 18.9 miles and takes about 26 minutes via I 70 and I 270, with a fuel budget near $3 and enough daylight to finish in a day. This short trip stays within Missouri, connecting two points in the Midwest region. Given its proximity, this route is ideal for a quick commute or a brief excursion, requiring minimal planning. You'll primarily be on major interstate highways, making for a straightforward drive.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 70 | 13.5 mi | 16m |
| I 270 | 1.7 mi | 2m |
| Drennen Parkway | 0.9 mi | 1m |
| Dorsett Road | 0.9 mi | 1m |
| South Main Street | 0.6 mi | 1m |
| Schuetz Road | 0.2 mi | <1m |
| Fee Fee Road | 0.2 mi | <1m |
Longest stretch:
I 70
— 13.5 mi, about 16m
Traffic on I-70
Hour-of-day weekday pattern from 22 FHWA count stations on your route.
Peak
4 PM
~6,486 veh/hr typical
Quietest
2 AM
~540 veh/hr
Peak-to-quiet ratio
12×
busier at peak than in the quiet hours
12a
6a
noon
6p
11p
Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon, MO and Maryland Heights, MO.
1
Start on this road
25 ft
·
7 sec
·
this road
2
Turn left onto South Main Street
0.6 mi
·
1 min
·
South Main Street
3
Turn left onto Drennen Parkway
0.9 mi
·
1 min
·
Drennen Parkway
Use the left lane.
4
Take the ramp
438 ft
·
6 sec
Toward I 70 East: Saint Louis
Use the slight left lane.
5
Merge onto I 70
14 mi
·
16 min
·
I 70
Use the straight / slight right lanes.
6
Take the exit
0.2 mi
·
12 sec
Exit 232
Toward I 270: Chicago, Memphis
Use the slight right lane.
7
Keep slight right at fork
0.4 mi
·
33 sec
Toward I 270 South: Memphis
Use the slight right lane.
8
Continue on this road
0.1 mi
·
10 sec
·
this road
Exit 232
Toward I 270 South: Memphis
9
Merge onto I 270
1.7 mi
·
2 min
·
I 270
10
Take the exit
0.2 mi
·
23 sec
Exit 17
Toward Dorsett Road
Use the slight right lane.
11
Keep slight left at fork
189 ft
·
6 sec
Toward Central Methodist University, Dorsett Road
Use the left / right lanes.
12
Turn slight left onto Dorsett Road
0.9 mi
·
1 min
·
Dorsett Road
Use the left lane.
13
Turn right onto Schuetz Road
0.2 mi
·
28 sec
·
Schuetz Road
14
Turn left onto Fee Fee Road
0.2 mi
·
36 sec
·
Fee Fee Road
15
Arrive at destination
Fee Fee Road
Heads-up: tricky spots
5 of 125 decision points cluster between mile 0.6 and 17.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.6 mi into trip
|
~1m in
|
Drennen Parkway
Turn left onto Drennen Parkway
Lane positioning matters here
Use the left lane.
8
15.1 mi into trip
|
~20m in
Take the exit toward I 270: Chicago, Memphis
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 232
Toward I 270: Chicago, Memphis
7
15.2 mi into trip
|
~20m in
Keep slight right at fork toward I 270 South: Memphis
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 270 South: Memphis
7
17.5 mi into trip
|
~23m in
Take the exit toward Dorsett Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 17
Toward Dorsett Road
9
17.7 mi into trip
|
~23m in
Keep slight left at fork toward Central Methodist University, Dorsett Road
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the left / right lanes.
Toward Central Methodist University, Dorsett Ro...
Fuel & Cost
Regular Gas
$2.93 one way
$5.86 round trip
$3.94/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.32 | $3.21 | $6.43 |
| premium | $4.93 | $3.67 | $7.33 |
| diesel | $5.60 | $4.17 | $8.33 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.6 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.7 | 0 | $1.98 | $0.91 |
| Efficient EV | 4.7 | 0 | $1.65 | $0.76 |
| EV Truck/SUV | 7.6 | 0 | $2.65 | $1.21 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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.
Destination
Maryland Heights, MO
Night in Maryland Heights on Thursday
Local time
11:04 PM
CDT
Current temp
97°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
22 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
26m 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?
This drive is mostly highway, with 85% of the 18.9 miles on interstates like I 70 and I 270. You'll experience a longest stretch of 13.5 miles on I 70 before transitioning to surface roads. Expect a relatively high number of exits and merges as you navigate between these major routes and reach your destination.
85% highway — fuel and pacing are the main things to plan.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 13.5 mi on I 70.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 70 and I 270. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.6 miles in near Drennen Parkway.
Driving Effort
9/10
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 12 decision points packed into just 18.9 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 26m.
Where does it get tricky?
The main spots that need attention: at 0.6 miles (Drennen Parkway): Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 15.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
621 ft
445 ft
Total Climb
282 ft
Total Descent
294 ft
Highest Point
621 ft
~10.8 mi in
Elevation Range
176 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between O'Fallon, MO and Maryland Heights, MO, road signs point toward Memphis and Methodist University.
Memphis
15.1 mi in
|
~20m
Methodist University
17.7 mi in
|
~23m
About the Cities
Starting in O'Fallon, MO
Full guide →Founded 1856
St. Charles, Missouri is outside of St. Louis on the bank of the Missouri River. It was Missouri's first state capital and was one of the first stops by Lewis and Clark on their journey to explore Louisiana Territory. The historic Main Street has largely been restored to its 1812-era appearance including gas lights a boardwalk and is lined with shops selling artwork, handicrafts, home decorations, antiques. There are also many restaurants.
Arriving in Maryland Heights, MO
Full guide →City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 26m. Total distance: 18.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
26m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (85%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 13.5 miles on I 70. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Maryland Heights, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
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 0.6 miles (Drennen Parkway): Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 15.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Maryland Heights, MO before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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