How far is Aloha, OR from Monmouth, OR?
The driving distance from Aloha, OR to Monmouth, OR is about 56.1 miles (90.3 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 48.1 miles (77.4 km).
- For a round trip, plan for roughly 02h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 24m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Aloha and Monmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Aloha and Monmouth.
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1
Start on the route
41 m · 12 sec
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2
Turn right onto Southwest Tualatin Valley Highway
31 m · 3 sec · Southwest Tualatin Valley Highway
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3
Turn left onto Southwest 185th Avenue
2.3 mi · 5 min · Southwest 185th Avenue
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4
Turn left onto Southwest Rigert Road
2833 ft · 1 min · Southwest Rigert Road
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5
At the end of the road, turn right onto Southwest 175th Avenue
1.2 km · 2 min · Southwest 175th Avenue
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6
Enter the roundabout and take exit 2 toward Southwest 175th Avenue
38 m · 3 sec · Southwest 175th Avenue
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7
Exit the roundabout onto Southwest 175th Avenue
1.9 mi · 3 min · Southwest 175th Avenue
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8
Continue on Southwest Roy Rogers Road
3.2 mi · 6 min · Southwest Roy Rogers Road
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9
Turn right onto Southwest Scholls Sherwood Road
2831 ft · 48 sec · Southwest Scholls Sherwood Road
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10
Keep slight left to continue on Southwest Scholls Sherwood Road
62 m · 9 sec · Southwest Scholls Sherwood Road
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11
Turn left onto Southwest Elwert Road
1.9 mi · 3 min · Southwest Elwert Road
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12
Enter the roundabout and take exit 2 toward Southwest Elwert Road
48 m · 3 sec · Southwest Elwert Road
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13
Exit the roundabout onto Southwest Elwert Road
580 ft · 15 sec · Southwest Elwert Road
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14
Turn right onto Southwest Pacific Highway
3 mi · 4 min · Southwest Pacific Highway
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15
Continue on Pacific Highway West
1.4 mi · 2 min · Pacific Highway West
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16
Continue on East Portland Road
1.5 km · 2 min · East Portland Road
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17
Turn left onto North Springbrook Road
1.6 km · 2 min · North Springbrook Road
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18
Turn left onto Northeast Saint Paul Highway
1154 ft · 22 sec · Northeast Saint Paul Highway
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19
Turn right onto Newberg-Dundee Bypass
4.1 mi · 6 min · Newberg-Dundee Bypass
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20
Take the exit slight right
130 m · 14 sec
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21
Merge slight left onto Pacific Highway West
3.2 mi · 5 min · Pacific Highway West
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22
Turn left onto Southeast Dayton Bypass
2.7 mi · 4 min · Southeast Dayton Bypass
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23
Turn left onto Southeast Lafayette Highway
2732 ft · 48 sec · Southeast Lafayette Highway
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24
Turn right onto Southeast Amity-Dayton Highway
2615 ft · 44 sec · Southeast Amity-Dayton Highway
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25
Continue on Southeast Amity-Dayton Highway
6.9 mi · 10 min · Southeast Amity-Dayton Highway
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26
At the end of the road, turn left onto Pacific Highway West
1.1 km · 48 sec · Pacific Highway West
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27
Continue on North Trade Street
1.2 km · 55 sec · North Trade Street
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28
Continue on Pacific Highway West
12.6 mi · 15 min · Pacific Highway West
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29
Continue on Main Street
1961 ft · 50 sec · Main Street
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30
Continue on South Pacific Highway West
2.2 mi · 3 min · South Pacific Highway West
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31
Enter the roundabout and take exit 2 toward South Pacific Highway West
30 m · 1 sec · South Pacific Highway West
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32
Exit the roundabout onto South Pacific Highway West
2.7 mi · 4 min · South Pacific Highway West
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33
Continue on Pacific Avenue North
1 km · 1 min · Pacific Avenue North
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34
Turn right onto Main Street East
1210 ft · 24 sec · Main Street East
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35
Arrive at your destination
0 m · 1 sec · Main Street East
Car Route Details
A richer read on the saved driving route between Aloha and Monmouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pacific Highway West
Continue on Pacific Highway West
12.6 mi · 00h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Light Rain Likely leaving Aloha and Light Rain Likely near Monmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Aloha to Monmouth?
The road trip is about 56.1 miles (90.3 km) and usually takes 01h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Dayton is a useful midpoint, sitting about 28 miles from Aloha and 28.1 miles from Monmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 48.1 miles (77.4 km), while the road route adds roughly 8 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 3:42 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.80 one way or $19.61 round trip. Estimated CO2 is about 17.6 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Aloha and Light Rain Likely near Monmouth.
Stop Ideas Near Dayton
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 Dayton.
Woodburn, OR
Salem station
Oregon City station
Portland, OR
Flight Path Map
This map shows the direct air route between Aloha and Monmouth. Straight-line distance: 48.07 mi (77.36 km).
#1 Aloha
A city in Clackamas County, Oregon.
| Population | 49,425 |
| Coordinates | 45.4942800, -122.8670500 |
| Altitude | 65 |
| Country | United States |
#2 Monmouth
City in Oregon, USA
| Population | 10,615 |
| Coordinates | 44.8484500, -123.2339900 |
| Altitude | 62 |
| Country | United States |
End: Monmouth (-123.23399, 44.84845)
Estimated Travel Time
Distance: 90 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 52m |
| 40 mph (64.37 km/h) | 01h 24m |
| 50 mph (80.47 km/h) | 01h 07m |
| 60 mph (96.56 km/h) | 00h 56m |
| 70 mph (112.65 km/h) | 00h 48m |
| 80 mph (129 km/h) | 00h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $9.80 | $19.61 |
| Mid-grade | $5.34 | $10.57 | $21.14 |
| Premium | $5.57 | $11.02 | $22.04 |
| Diesel | $6.37 | $12.60 | $25.21 |
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 Oregon · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.