Greenwich to Thompson is 137 miles and takes about 2 hours 50 minutes via I 95 and I 395, with a fuel budget near $24 and enough daylight to finish in a day. This drive stays within Connecticut, connecting two points in the Northeast region. It's a straightforward trip that's mostly highway driving, making it a convenient option for a quick regional hop. Consider this route if you're looking for an efficient way to cover ground without extensive planning.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
68.7 miles from Greenwich, CT
A natural place for your longest stop of the day
, about 1h 32m into the drive
.
Main Roads
Road
Distance
Duration
I 95
81.9 mi
1h 44m
I 395
49.9 mi
54m
Forbes Avenue
1.2 mi
2m
Long Wharf Drive
0.9 mi
2m
Frontage Road
0.7 mi
<1m
Thompson Hill Road
0.6 mi
1m
Field Point Road
0.2 mi
<1m
Arch Street
0.2 mi
<1m
Longest stretch:
I 95
— 81.9 mi, about 1h 44m
Traffic on I-95
Hour-of-day weekday pattern from 44 FHWA count stations on your route.
Peak
4 PM
~3,706 veh/hr typical
Quietest
2 AM
~621 veh/hr
Peak-to-quiet ratio
6×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 30 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 Greenwich, CT and Thompson, CT.
1
Start on West Elm Street
53 ft·5 sec·West Elm Street
2
Turn left onto Field Point Road
0.2 mi·26 sec·Field Point Road
Use the straight / right lanes.
3
Turn slight left onto Sound View Drive
0.2 mi·23 sec·Sound View Drive
4
Continue on Arch Street
0.2 mi·35 sec·Arch Street
5
Take the ramp
0.2 mi·29 sec
Toward I 95 North: New Haven
6
Merge onto I 95
44 mi·59 min·I 95
Use the straight / slight right lanes.
7
Take the exit
0.2 mi·1 min
Exit 46Toward Long Wharf Drive, Sargent DriveUse the straight / slight right lanes.
8
Turn left onto Long Wharf Drive
0.9 mi·2 min·Long Wharf Drive
Use the straight lane.
9
Continue on East Street
0.1 mi·16 sec·East Street
10
Turn right onto US 1
0.1 mi·9 sec·Water Street
11
Continue on US 1
1.2 mi·2 min·Forbes Avenue
12
Turn right onto US 1
0.7 mi·48 sec·Frontage Road
13
Take the exit
0.2 mi·29 sec
Toward I 95 North
14
Merge onto I 95
38 mi·44 min·I 95
Use the straight / slight right lanes.
15
Take the exit onto I 395
36 mi·39 min·I 395
Exit 76Toward I 395 North: Norwich, Plainfield
16
Keep slight left at fork onto I 395
14 mi·15 min·I 395
17
Take the exit
0.4 mi·45 sec
Exit 50Toward CT 200: North Grosvenordale, Thompson
18
Keep slight right at fork
130 ft·3 sec
19
Turn right onto CT 200
0.6 mi·1 min·Thompson Hill Road
20
Turn left onto CT 193
73 ft·1 sec·Thompson Road
21
Arrive at destination
CT 193
Trip Plan
Given the 2 hour 50 minute duration, leaving Greenwich in the morning should allow you to reach Thompson with plenty of daylight remaining. With only one recommended stop and a drive under 3 hours, you have flexibility in pacing. The fuel cost is estimated at $24, so ensure you have enough fuel before departing Greenwich. Keep an eye out for the transition from I 95 to I 395, as this is a key point where you'll change highways on your route.
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.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 68.7 miles from Greenwich, CT, or about 1h 32m into the drive.
The longest continuous stretch on this route runs about 81.9 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 30 miles or 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 68.7 miles or 1h 32m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 21m
Traffic, exits, and arrival timing usually matter more near Thompson, CT than in the middle of the route.
Before You Leave
+
Open the route before leaving Greenwich, CT 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 Greenwich, CT
This is one driving day of about 137.3 miles and 2h 50m.
Your first comfortable stop window is around 30 miles from Greenwich, CT.
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 81.9 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 14
5 decision points cluster between mile 0 and 136.3 — 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|Field Point Road
Turn left onto Field Point Road
Lane positioning matters here
Use the straight / right lanes.
8
44.7 mi into trip|~1h 1m in
Take the exit toward Long Wharf Drive, Sargent Drive
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 46
Toward Long Wharf Drive, Sargent Drive
6
44.9 mi into trip|~1h 2m in|Long Wharf Drive
Turn left onto Long Wharf Drive
Lane positioning matters here
Use the straight lane.
6
86.4 mi into trip|~1h 53m in|I 395
Take the exit onto I 395 toward I 395 North: Norwich, Plainfield
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 76
Toward I 395 North: Norwich, Plainfield
6
136.3 mi into trip|~2h 47m in
Take the exit toward CT 200: North Grosvenordale, Thompson
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 50
Toward CT 200: North Grosvenordale, Thompson
Fuel & Cost
Regular Gas
$24.27 one way
$48.54 round trip
$4.49/gal25.4 MPG avg48 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.92
$26.58
$53.17
premium
$5.29
$28.59
$57.18
diesel
$5.35
$28.92
$57.84
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$24
Meals
$25–$50
Total
$49–$74
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 48 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $14 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
41.2
0
$14.42
$6.59
Efficient EV
34.3
0
$12.01
$5.49
EV Truck/SUV
54.9
0
$19.22
$8.79
Gas CO2
48 kg
EV CO2
16 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 Jun 1, 2026
Origin
Greenwich, CT
Afternoon
in Greenwich on Wednesday
Local time
2:58 PM
EDT
Current temp
57°F
Mostly Cloudy
S 3 mph14% chanceLive forecast
Destination
Thompson, CT
Afternoon
in Thompson on Wednesday
Local time
2:58 PM
EDT
Current temp
48°F
Rain Showers
NW 5 mph8% chanceLive forecast
42°F
Essex, CT
69 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
9 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 50m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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.
Weir Farm National Historical Park
National Historical Park
Visit the home and studio of America's most beloved Impressionist, J. Alden Weir, and walk in the footsteps of generations of world-class artists. Set amidst more than 60 acres of painterly woods, fie...
11 mi from route
~27 min detour
Free
near mile 14.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect to spend about 96% of your time on highways, with a significant stretch of 81.9 miles on I 95. The bulk of your travel will be on interstates before transitioning to surface roads like Forbes Avenue closer to your destination. You'll notice a high density of exits along the interstate portions, so be prepared for frequent opportunities to get on and off the highway.
96% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 81.9 mi on I 95.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 95 and I 395. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Field Point Road.
Driving Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 137.3 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: near the start (Field Point Road): Lane positioning matters here; at 44.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 44.9 miles (Long Wharf Drive): Lane positioning matters here.
Elevation Profile
Mostly flat terrain
583 ft28 ft
Total Climb
668 ft
Total Descent
181 ft
Highest Point
583 ft
~137.3 mi in
Elevation Range
555 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 Greenwich, CT to Thompson, CT, road signs begin pointing toward Plainfield along the way.
Greenwich is a town of about 60,000 in Fairfield County, southwestern Connecticut. It is one of the wealthiest communities in America and is blessed with lush and beautiful scenery and many large and impressive houses.
Top landmarks
•Great Captain Island Light — lighthouse built 1868 in Connecticut, United States
•William E. Ward House — historic house located near Rye Brook, New York, United States
•Bruce Museum of Arts and Science — museum in Greenwich, Connecticut
Doable as a same-day drive at 2h 50m. Total distance: 137.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 50m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 81.9 miles on I 95. The full list of main roads is in the Roads section above.
Yes — we found about 15 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 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 Thompson, CT 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 15 rest areas along the route for bathroom stops.
The main spots that need attention: near the start (Field Point Road): Lane positioning matters here; at 44.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 44.9 miles (Long Wharf Drive): Lane positioning matters here.
Yes — Weir Farm National Historical 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 Thompson, CT before heading back.
