Origin
Weldon Spring, MO
Late night in Weldon Spring on Sunday
Local time
12:59 AM
CDT
Current temp
57°F
Unavailable
Live forecast
Trip from Weldon Spring, MO to St. Louis, MO
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
38m
Distance
30 mi
48 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$5
one way
EV Charging
Good
8 stations
Best Time to Leave
4 AM
0h 35m
★
6 AM
0h 39m
8 AM
0h 45m
10 AM
0h 41m
12 PM
0h 40m
3 PM
0h 41m
5 PM
0h 45m
8 PM
0h 37m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Weldon Spring, MO
Wikimedia Commons
Trip Overview
If you are looking for a quick transition from the quiet outskirts of Weldon Spring to the heart of St. Louis, this 30.1-mile journey is an efficient choice. You can easily complete the trip in about 30 minutes, making it a perfect day trip for commuters or weekend explorers. Because the duration is so short, there is no need to plan for overnight stays or complex logistics. Budgeting around $4 for fuel should be sufficient to cover the distance, keeping your travel costs minimal. Since both locations are situated within the Midwest, you will find the transition between these Missouri points familiar and straightforward. It is a practical route for those who value speed and simplicity over a long-haul adventure.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Avenue of the Saints | 17.4 mi | 21m |
| Jack Buck Memorial Highway | 5.8 mi | 7m |
| Daniel Boone Expressway | 5.7 mi | 7m |
| South 14th Street | 0.3 mi | <1m |
| MO 94 | 0.2 mi | <1m |
| Market Street | 0.2 mi | <1m |
| Weldon Spring Road | <0.1 mi | <1m |
| Old 94 South | <0.1 mi | <1m |
Longest stretch:
Avenue of the Saints
— 17.4 mi, about 21m
Turn-by-Turn Driving Directions
Step-by-step road directions between Weldon Spring, MO and St. Louis, MO.
1
Start on Old 94 South
149 ft
·
8 sec
·
Old 94 South
2
Turn right onto Weldon Spring Road
263 ft
·
6 sec
·
Weldon Spring Road
3
Merge onto MO 94
393 ft
·
8 sec
·
MO 94
4
Keep slight left at fork onto MO 94
0.1 mi
·
11 sec
·
MO 94
5
Take the exit
0.2 mi
·
17 sec
Toward I 64 East, US 40 East, US 61 South: St. Louis
6
Merge onto I 64; US 40; US 61
17 mi
·
21 min
·
Avenue of the Saints
Use the straight lane.
7
Continue on I 64; US 40
5.7 mi
·
7 min
·
Daniel Boone Expressway
Use the straight lane.
8
Continue on I 64; US 40
5.8 mi
·
7 min
·
Jack Buck Memorial Highway
Use the straight / slight right lanes.
9
Take the exit
0.2 mi
·
34 sec
Exit 39A
Toward 14th Street
Use the slight right lane.
10
Turn left onto South 14th Street
0.3 mi
·
42 sec
·
South 14th Street
Use the left lane.
11
Turn right onto Market Street
0.2 mi
·
25 sec
·
Market Street
12
Arrive at destination
Market Street
Heads-up: tricky spots
5 of 85 decision points cluster between mile 0.2 and 29.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.2 mi into trip
|
~0m in
|
MO 94
Keep slight left at fork onto MO 94
Highway fork - watch signs carefully
6
0.3 mi into trip
|
~0m in
Take the exit toward I 64 East, US 40 East, US 61 South: St. Louis
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 64 East, US 40 East, US 61 South: St....
5
0.5 mi into trip
|
~0m in
|
I 64; US 40; US 61 / Avenue of the Saints
Merge onto I 64; US 40; US 61 / Avenue of the Saints
Merge point - match speed before joining. Lane positioning matters here
Use the straight lane.
7
29.3 mi into trip
|
~37m in
Take the exit toward 14th Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 39A
Toward 14th Street
5
29.5 mi into trip
|
~37m in
|
South 14th Street
Turn left onto South 14th Street
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$4.69 one way
$9.38 round trip
$3.97/gal
25.4 MPG avg
11 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $5.15 | $10.30 |
| premium | $4.89 | $5.77 | $11.55 |
| diesel | $5.61 | $6.62 | $13.25 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$5
Estimated CO2 emission: 10.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 60% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 9 | 0 | $3.15 | $1.44 |
| Efficient EV | 7.5 | 0 | $2.63 | $1.20 |
| EV Truck/SUV | 12 | 0 | $4.20 | $1.92 |
Gas CO2
10 kg
EV CO2
4 kg (60% 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
St. Louis, MO
Late night in St. Louis on Sunday
Local time
12:59 AM
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
17 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
38m 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 turn-heavy local drive that demands your focus as you navigate away from Weldon Spring. While your route incorporates Weldon Spring Road, I-64 East, and the Avenue of the Saints, the road conditions shift frequently rather than offering a monotonous interstate grind. You will find that there is no single long-haul stretch, as the longest uninterrupted segment on Weldon Spring Road is effectively zero miles. With a 0% highway share, this trip feels more like a series of interconnected local segments than a high-speed transit. Prepare for a dynamic experience behind the wheel where the road configuration keeps you engaged throughout the 30-minute transit.
Only 20% highway — the rest is turn-by-turn surface driving.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 17.4 mi on Avenue of the Saints.
How Hard Is This Drive?
7/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.2 miles in near MO 94.
Driving Effort
7/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 8 decision points packed into just 30 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 38m.
Where does it get tricky?
The main spots that need attention: at 0.2 miles (MO 94): Highway fork - watch signs carefully; at 0.3 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 0.5 miles (I 64; US 40; US 61 / Avenue of the Saints): Merge point - match speed before joining. Lane positioning matters here.
About the Cities
Arriving in St. Louis, MO
Full guide →The Gateway City of St. Louis is the epitome of the modern Midwestern metropolis. Missouri's second-largest city is vibrant but laid-back, populous but navigable, historic but still relevant. The city's planners have created an aesthetically beautiful city, with plenty of green space amidst buildings both old and new, framed by the majestic Mississippi and Missouri rivers. And capping it all is the world's tallest man-made monument, the beautiful and iconic Gateway Arch. St. Louis is a city of culture and surprisingly inexpensive. Among American cities, only Washington, D.C. has more free attractions for tourists and residents alike. Hotels, restaurants, and even parking garages avoid the premium pricing common in other big cities. Although often overlooked, St. Louis can be an affordable, educational, and fun family getaway.
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 38m. Total distance: 30 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
38m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 17.4 miles on Avenue of the Saints. 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 St. Louis, 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 0.2 miles (MO 94): Highway fork - watch signs carefully; at 0.3 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 0.5 miles (I 64; US 40; US 61 / Avenue of the Saints): Merge point - match speed before joining. 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 US Trip Planner 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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