Portland, ME to Belfast, ME is 102.7 miles and takes about 2h 3m via I 295 and Route 3, with a fuel budget near $17 and enough daylight to finish in a day. This trip stays within the Northeast region, specifically Maine, making it a straightforward option if you're already in or near Portland. The majority of the drive is on the highway, offering a quick transit between these two points. Given the relatively short distance and duration, it's well-suited for a same-day excursion.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
51.4 miles from Portland, ME
A natural place for your longest stop of the day
, about 59m into the drive
.
Main Roads
Road
Distance
Duration
I 295
46.3 mi
52m
Route 3
17.6 mi
21m
Maine Turnpike
9.8 mi
10m
North Belfast Avenue
8.1 mi
11m
Augusta Road
4.8 mi
5m
Belmont Avenue
4.4 mi
5m
Acadia Highway
4 mi
4m
Belfast Augusta Road West
3.4 mi
3m
Longest stretch:
I 295
— 46.3 mi, about 52m
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland, ME and Belfast, ME.
1
Start on Congress Street
131 ft·11 sec·Congress Street
2
Turn left onto Elm Street
519 ft·22 sec·Elm Street
Use the left lane.
3
Turn right onto Cumberland Avenue
0.3 mi·44 sec·Cumberland Avenue
Use the straight / right lanes.
4
Turn left onto US 1A
0.4 mi·36 sec·Franklin Street
Use the left lane.
5
Take the ramp onto US 1A
0.3 mi·39 sec·US 1A
6
Merge onto I 295; US 1
46 mi·52 min·I 295; US 1
Use the straight / slight right lanes.
7
Merge onto I 95
9.8 mi·10 min·Maine Turnpike
8
Take the exit
0.1 mi·26 sec
Exit 113Toward ME 3: Augusta, Belfast
9
Keep slight right at fork
0.2 mi·20 sec
10
Merge onto ME 3
2.5 mi·3 min·Augusta Bypass
Use the left / straight lanes.
11
Continue on US 202; ME 3; ME 9
8.1 mi·11 min·North Belfast Avenue
Use the straight lane.
12
Continue on US 202; ME 3; ME 9
0.2 mi·16 sec·Belfast Road
13
Continue on US 202; ME 3; ME 9
18 mi·21 min·Route 3
Use the straight lane.
14
Continue on ME 3
4.0 mi·4 min·Acadia Highway
15
Continue on ME 3
3.4 mi·3 min·Belfast Augusta Road West
16
Continue on ME 3
4.8 mi·5 min·Augusta Road
17
Continue on ME 3
4.4 mi·5 min·Belmont Avenue
18
Continue on Main Street
0.3 mi·46 sec·Main Street
19
Turn right onto High Street
112 ft·1 sec·High Street
20
Arrive at destination
High Street
Trip Plan
For this short 2-hour drive, leaving Portland in the morning or early afternoon works well, allowing you to reach Belfast with plenty of time. Since it's only 102.7 miles, you don't need to plan for extensive stops, but there are opportunities to pull over if needed. Keep an eye on your fuel, especially as you get closer to Belfast, as service areas might become less frequent once you're off I 295. The estimated fuel cost is around $17, so factor that into your budget.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 51.4 miles from Portland, ME, or about 59m into the drive.
The longest continuous stretch on this route runs about 46.3 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 23 miles or 27m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 51.4 miles or 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 41m
Traffic, exits, and arrival timing usually matter more near Belfast, ME than in the middle of the route.
Before You Leave
+
Open the route before leaving Portland, 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 Portland, ME
This is one driving day of about 102.7 miles and 2h 3m.
Your first comfortable stop window is around 23 miles from Portland, ME.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 295 for about 46.3 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 9
5 decision points cluster between mile 0 and 57.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in|Elm Street
Turn left onto Elm Street
Lane positioning matters here
Use the left lane.
6
0.1 mi into trip|~0m in|Cumberland Avenue
Turn right onto Cumberland Avenue
Lane positioning matters here
Use the straight / right lanes.
5
0.4 mi into trip|~1m in|US 1A / Franklin Street
Turn left onto US 1A / Franklin Street
Lane positioning matters here
Use the left lane.
5
1.1 mi into trip|~2m in|I 295; US 1
Merge onto I 295; US 1
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
57.2 mi into trip|~1h 5m in
Take the exit toward ME 3: Augusta, Belfast
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 113
Toward ME 3: Augusta, Belfast
Fuel & Cost
Regular Gas
$16.53 one way
$33.07 round trip
$4.09/gal25.4 MPG avg36 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.50
$18.19
$36.38
premium
$4.86
$19.67
$39.33
diesel
$5.61
$22.67
$45.35
Estimated Tolls: $0.59
Maine Turnpike
(9.8 mi)$0.59
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$17
Tolls
$1
Meals
$25–$50
Total
$42–$67
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 35.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $11 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
30.8
0
$10.78
$4.93
Efficient EV
25.7
0
$8.99
$4.11
EV Truck/SUV
41.1
0
$14.38
$6.57
Gas CO2
36 kg
EV CO2
12 kg (67% 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.
Forecast as of Apr 21, 2026
Origin
Portland, ME
Late night
in Portland on Tuesday
Local time
4:52 AM
EDT
Current temp
50°F
Unavailable
Live forecast
Destination
Belfast, ME
Late night
in Belfast on Tuesday
Local time
4:52 AM
EDT
Current temp
43°F
Unavailable
Live forecast
56°F
Augusta, ME
51 mi in
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
7 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 3m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Frances Perkins National Monument
National Monument
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 35.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is mostly highway, with 72% of the 102.7 miles on faster roads like I 295. You'll experience a stretch of 46.3 miles on I 295 before transitioning to Route 3. Expect a more rural cruising feel once you leave the main interstate. The Maine Turnpike is also part of this route, so be aware of potential tolls and increased traffic depending on the time of day.
72% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 46.3 mi on I 295.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on I 295 and Route 3. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Elm Street.
Driving Effort6/10
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 102.7 miles you will encounter 9 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 (Elm Street): Lane positioning matters here; at 0.1 miles (Cumberland Avenue): Lane positioning matters here; at 0.4 miles (US 1A / Franklin Street): Lane positioning matters here.
Portland is on a peninsula in Casco Bay on the Southern Maine coast approximately 100 miles (161 km) north of Boston, Massachusetts. It has more than 65,000 inhabitants, making it the largest city in Maine. Portland is a small seaside city with a high concentration of shops, restaurants, museums, galleries, tours and many things to see and do. Many people commute to Portland to work, and the city's population significantly increases in the summertime.
Doable as a same-day drive at 2h 3m. Total distance: 102.7 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 3m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (72%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 46.3 miles on I 295. The full list of main roads is in the Roads section above.
Expect about $0.59 in tolls one way, starting with Maine Turnpike. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 1 rest area or service plaza 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 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 Belfast, 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. There are 1 rest area 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 (Elm Street): Lane positioning matters here; at 0.1 miles (Cumberland Avenue): Lane positioning matters here; at 0.4 miles (US 1A / Franklin Street): Lane positioning matters here.
Yes — Frances Perkins National Monument. 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 Belfast, ME before heading back.
