Traveling from Caribou to Portland covers 304.2 miles of Maine landscape, typically requiring about 6 hours and 14 minutes of driving time. Because this route is primarily highway-focused, you can comfortably complete the journey in a single day, though it is a significant commitment behind the wheel. You should budget approximately $49 for fuel to make the trip. The route takes you from the far northern reaches of the state down to the southern coast, shifting from rural surroundings to the more urban environment of Portland. Whether you are heading south for business or leisure, this direct path is efficient and straightforward. Plan accordingly to ensure you have enough time to reach your destination before dark.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
152.1 miles from Caribou, ME
A natural place for your longest stop of the day
, about 3h 8m into the drive
.
Main Roads
Road
Distance
Duration
I 95
198.2 mi
3h 26m
I 295
46.5 mi
52m
Houlton Road
10.3 mi
14m
Route 1
9.1 mi
14m
Presque Isle Road
7.7 mi
11m
Main Road
6.7 mi
10m
North Road
5.8 mi
8m
Caribou Road
5.1 mi
7m
Longest stretch:
I 95
— 198.2 mi, about 3h 26m
Traffic on I-95
Hour-of-day weekday pattern from 32 FHWA count stations on your route.
Peak
4 PM
~1,306 veh/hr typical
· worst 1,679
Quietest
1 AM
~48 veh/hr
Peak-to-quiet ratio
27.2×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 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 Caribou, ME and City of Portland, ME.
1
Start on this road
43 ft·9 sec·this road
2
Turn left onto ME 161B; ME 164; US 1 Business
101 ft·2 sec·Main Street
3
Turn slight left onto ME 161B; ME 164
477 ft·10 sec·Herschel Street
4
Turn left onto Record Street
471 ft·14 sec·Record Street
5
Turn left onto ME 161B; ME 164; US 1 Business
381 ft·7 sec·Washburn Street
6
Turn right onto ME 161B; ME 164; US 1 Business
0.1 mi·12 sec·Main Street
7
Turn slight left onto Lyndon Street
0.3 mi·40 sec·Lyndon Street
8
Turn right onto US 1; ME 161
5.7 mi·8 min·Presque Isle Road
Use the left / straight lanes.
9
Continue on US 1
5.1 mi·7 min·Caribou Road
10
Continue on US 1
0.3 mi·48 sec·Main Street
11
Turn right onto ME 163
0.7 mi·1 min·Connector Road
12
Continue on ME 163
0.2 mi·18 sec·State Road
13
Continue on ME 163; ME 227
0.8 mi·1 min·Parsons Street
14
Turn left onto ME 227
0.2 mi·21 sec·State Street
15
Turn right onto US 1
1.3 mi·3 min·Main Street
Use the straight / left lanes.
16
Continue on US 1
10 mi·14 min·Houlton Road
Use the straight lane.
17
Continue on US 1
2.0 mi·3 min·Presque Isle Road
18
Continue on US 1
0.7 mi·2 min·Benjamin Street
19
At end of road, turn right onto US 1
0.5 mi·1 min·Main Street
20
Continue on US 1
0.3 mi·40 sec·Military Road
21
Continue on US 1
2.7 mi·4 min·Route 1
22
Continue on US 1
6.7 mi·10 min·Main Road
23
Continue on US 1
6.4 mi·10 min·Route 1
Use the straight / left lanes.
24
Continue on US 1
0.7 mi·54 sec·US Highway 1
Use the straight / left lanes.
25
Continue on US 1
5.8 mi·8 min·North Road
Use the straight lane.
26
Continue on US 1
3.1 mi·5 min·North Street
27
Take the exit
0.3 mi·38 sec
28
Merge onto I 95
198 mi·3 hr 26 min·I 95
29
Keep slight right at fork onto I 295
46 mi·52 min·I 295
Exit 103Toward I 295 South, ME 9, ME 126: Gardiner, BrunswickUse the straight lane.
30
Take the exit onto US 1A
1.1 mi·2 min·US 1A
Exit 7Toward US 1AUse the straight / slight right lanes.
31
Continue on Maine State Pier
0.1 mi·29 sec·Maine State Pier
Use the straight lane.
32
Turn slight right
187 ft·13 sec
33
Turn straight onto Portland - Peaks Island
2.5 mi·20 min·Portland - Peaks Island
34
Continue
213 ft·15 sec
35
Continue on Welch Street
0.2 mi·49 sec·Welch Street
36
Turn right onto Oakland Avenue
0.1 mi·26 sec·Oakland Avenue
37
Turn slight left onto Whitehead Street
351 ft·15 sec·Whitehead Street
38
Continue on Seashore Avenue
0.2 mi·46 sec·Seashore Avenue
39
Continue on Seashore Avenue
0.6 mi·2 min·Seashore Avenue
40
Arrive at destination
Seashore Avenue
Trip Plan
To keep your drive manageable, plan for at least one dedicated stop to stretch your legs and refresh during the 6-hour trek. Since the longest segment is nearly 200 miles, check your fuel levels before merging onto the main stretch of I-95 to avoid any unnecessary stress. Leaving early in the morning is your best bet to beat potential congestion as you approach the Portland area. If you find the 304-mile distance tiring, remember that you have the flexibility to pull off the interstate whenever you need a break. Keep an eye on your speed, as the transition from more rural northern roads to the denser traffic near Portland can happen faster than you might anticipate.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 152.1 miles from Caribou, ME, or about 3h 8m into the drive.
The longest continuous stretch on this route runs about 198.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 67 miles or 1h 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 152.1 miles or 3h 8m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 50m
Traffic, exits, and arrival timing usually matter more near City of Portland, ME than in the middle of the route.
Before You Leave
+
Open the route before leaving Caribou, ME so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Caribou, ME
This is one driving day of about 304.2 miles and 6h 14m.
Your first comfortable stop window is around 67 miles from Caribou, ME.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 95 for about 198.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 12
5 decision points cluster between mile 0 and 299.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|ME 161B; ME 164; US 1 Business / Main Street
Turn left onto ME 161B; ME 164; US 1 Business / Main Street
Navigation decision point
5
0.7 mi into trip|~1m in|US 1; ME 161 / Presque Isle Road
Turn right onto US 1; ME 161 / Presque Isle Road
Lane positioning matters here
Use the left / straight lanes.
6
13.6 mi into trip|~21m in|US 1 / Main Street
Turn right onto US 1 / Main Street
Lane positioning matters here
Use the straight / left lanes.
9
252.7 mi into trip|~4h 53m in|I 295
Keep slight right at fork onto I 295 toward I 295 South, ME 9, ME 126: Gardiner, Brunswick
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Exit 103
Toward I 295 South, ME 9, ME 126: Gardiner, Bru...
7
299.1 mi into trip|~5h 46m in|US 1A
Take the exit onto US 1A toward US 1A
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 7
Toward US 1A
Fuel & Cost
Regular Gas
$47.74 one way
$95.48 round trip
$3.99/gal25.4 MPG avg106 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.48
$53.61
$107.21
premium
$4.81
$57.63
$115.26
diesel
$4.80
$57.44
$114.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$48
Meals
$25–$50
Total
$73–$98
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 106.4 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $32 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
91.3
1
$31.94
$14.60
Efficient EV
76.1
0
$26.62
$12.17
EV Truck/SUV
121.7
1
$42.59
$19.47
Gas CO2
106 kg
EV CO2
36 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Jul 17, 2026
Origin
Caribou, ME
Night
in Caribou on Saturday
Local time
9:34 PM
EDT
Current temp
74°F
Mostly Sunny
NW 16 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 2:06AM EDT until July 17 at 8:00PM EDT by NWS Caribou ME
Destination
City of Portland, ME
Night
in City of Portland on Saturday
Local time
9:34 PM
EDT
Current temp
74°F
Sunny
W 10 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 2:06AM EDT until July 17 at 8:00PM EDT by NWS Caribou ME
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
6h 14m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Katahdin Woods and Waters National Monument
National Monument
Spread across a wild landscape offering spectacular views of Katahdin, Katahdin Woods and Waters invites discovery of its rivers, streams, woods, flora, fauna, geology, and the night skies that have a...
16 mi from route
~39 min detour
Free
near mile 94.4
Known as the first woman to hold a presidential cabinet position and the “Woman behind the New Deal,” Frances Perkins championed many labor rights that Americans enjoy today, including safety standard...
17 mi from route
~42 min detour
Free
near mile 262.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
With 84% of the trip spent on highways, you will spend most of your time on I-95 and I-295, making this a high-speed, efficient transit. You will encounter a substantial 198.2-mile uninterrupted stretch on I-95, which defines the bulk of your experience. While you will start on Houlton Road, the transition to the interstate system happens quickly. Expect a consistent driving pace that favors highway cruising over technical maneuvering. The road’s personality is utilitarian and focused on covering the north-to-south distance as quickly as possible.
84% highway — fuel and pacing are the main things to plan.
40 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 198.2 mi on I 95.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 95 and I 295. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near ME 161B; ME 164; US 1 Business / Main Street.
Driving Effort5/10
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 304.2 miles you will encounter 12 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: near the start (ME 161B; ME 164; US 1 Business / Main Street): Navigation decision point; at 0.7 miles (US 1; ME 161 / Presque Isle Road): Lane positioning matters here; at 13.6 miles (US 1 / Main Street): Lane positioning matters here.
Elevation Profile
Mostly flat terrain
720 ft23 ft
Total Climb
386 ft
Total Descent
810 ft
Highest Point
720 ft
~21.7 mi in
Elevation Range
697 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Caribou, ME to City of Portland, ME, road signs begin pointing toward Brunswick along the way.
Caribou is the most northeastern city in the United States and located just 10 minutes from the Canadian border. The community was incorporated in 1859. The community has a rich agricultural history and is known for some of the finest snowmobiling in the Northeast.
Doable as a same-day drive at 6h 14m. Total distance: 304.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 14m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (84%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 198.2 miles on I 95. The full list of main roads is in the Roads section above.
Yes — we found about 10 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at City of Portland, ME before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 10 rest areas along the route for bathroom stops.
Mostly yes along the main roads, but rural stretches through ME can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (ME 161B; ME 164; US 1 Business / Main Street): Navigation decision point; at 0.7 miles (US 1; ME 161 / Presque Isle Road): Lane positioning matters here; at 13.6 miles (US 1 / Main Street): Lane positioning matters here.
Yes — Katahdin Woods and Waters National Monument and Frances Perkins National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.2 hours each way, a round trip means 12.5 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at City of Portland, ME before the return drive.
