How far is Youngstown, OH from Saint Marys, OH?
The driving distance from Youngstown, OH to Saint Marys, OH is about 228.9 miles (368.3 km), with a travel time of about 04h 22m by car.
- The straight-line flight distance is about 199.3 miles (320.7 km).
- For a round trip, plan for roughly 08h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 04h 22m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Ohio, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Youngstown and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Youngstown and Saint Marys.
-
1
Start on Central Square
38 m · 10 sec · Central Square
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2
Continue on Central Square
104 m · 14 sec · Central Square
-
3
Turn straight onto Market Street
2581 ft · 51 sec · Market Street
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4
Turn right onto West Woodland Avenue
70 m · 5 sec · West Woodland Avenue
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5
Take the ramp slight right
696 ft · 17 sec
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6
Merge slight left onto South Shore Expressway
1.5 mi · 2 min · South Shore Expressway
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7
Continue on Wickliffe Expressway
4.6 mi · 6 min · Wickliffe Expressway
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8
Merge slight right
4.6 mi · 5 min
-
9
Continue straight
39.2 mi · 44 min
-
10
Keep slight right to continue on Kenmore Expressway
19.8 mi · 24 min · Kenmore Expressway
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11
Take the exit slight right toward I 71 South: Columbus
1.2 mi · 3 min
-
12
Merge slight left
31.7 mi · 34 min
-
13
Take the exit slight right toward US 30: Wooster, Mansfield
1339 ft · 36 sec
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14
Keep slight left to continue on US 30 West: Mansfield
1983 ft · 38 sec
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15
Merge slight left
7.6 mi · 10 min
-
16
Keep slight left to continue on Martin Luther King Jr. Freeway
37.8 mi · 41 min · Martin Luther King Jr. Freeway
-
17
Keep slight right
6.3 mi · 8 min
-
18
Keep slight left
34.8 mi · 37 min
-
19
Take the exit slight right toward SR 696: Dayton, Toledo
2927 ft · 1 min · US 30 West to East Lincoln Highway
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20
At the end of the road, turn left onto East Lincoln Highway
2371 ft · 54 sec · East Lincoln Highway
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21
Take the exit left
2841 ft · 1 min
-
22
Merge slight left
24.1 mi · 26 min
-
23
Take the exit slight right toward US 33: Bellefontaine, Saint Marys
784 ft · 22 sec
-
24
Keep slight left to continue on US 33 East: Bellefontaine
38 m · 5 sec
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25
Turn right
10.6 mi · 11 min
-
26
Take the exit slight right toward SR 66: Saint Marys, Spencerville
555 ft · 14 sec
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27
Keep slight left
1.3 km · 2 min
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28
Turn straight
1.3 km · 2 min
-
29
Turn right onto East Spring Street
1705 ft · 48 sec · East Spring Street
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30
Turn left onto South Front Street
32 m · 5 sec · South Front Street
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31
Arrive at your destination
0 m · 1 sec · South Front Street
Car Route Details
A richer read on the saved driving route between Youngstown and Saint Marys.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Wickliffe Expressway
Continue straight
39.2 mi · 00h 44m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Showers And Thunderstorms leaving Youngstown and Chance Showers And Thunderstorms then Showers And Thunderstorms near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Youngstown to Saint Marys?
The road trip is about 228.9 miles (368.3 km) and usually takes 04h 22m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Ontario is a useful midpoint, sitting about 114.2 miles from Youngstown and 114.6 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 199.3 miles (320.7 km), while the road route adds roughly 29.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 8:14 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.94 one way or $59.87 round trip. Estimated CO2 is about 71.8 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Youngstown and Chance Showers And Thunderstorms then Showers And Thunderstorms near Saint Marys.
Stop Ideas Near Ontario
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Ontario.
Sandusky
Elyria
Columbus, OH
Cleveland Lakefront station
Flight Path Map
This map shows the direct air route between Youngstown and Saint Marys. Straight-line distance: 199.29 mi (320.72 km).
#1 Youngstown
The most populous city in Mahoning County, Ohio.
| Population | 63,828 |
| Coordinates | 41.0997800, -80.6495200 |
| Altitude | 259 |
| Country | United States |
#2 Saint Marys
City in Ohio, United States
| Population | 8,113 |
| Coordinates | 40.5422700, -84.3894000 |
| Altitude | 264 |
| Country | United States |
End: Saint Marys (-84.3894, 40.54227)
Estimated Travel Time
Distance: 368 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 37m |
| 40 mph (64.37 km/h) | 05h 43m |
| 50 mph (80.47 km/h) | 04h 34m |
| 60 mph (96.56 km/h) | 03h 48m |
| 70 mph (112.65 km/h) | 03h 16m |
| 80 mph (129 km/h) | 02h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $29.94 | $59.87 |
| Mid-grade | $4.24 | $34.28 | $68.55 |
| Premium | $4.79 | $38.70 | $77.41 |
| Diesel | $4.30 | $34.78 | $69.55 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Ohio · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.