How far is Fairfield, CT from Darien, CT?
The driving distance from Fairfield, CT to Darien, CT is about 12.2 miles (19.7 km), with a travel time of about 00h 17m by car.
- The straight-line flight distance is about 11.6 miles (18.6 km).
- For a round trip, plan for roughly 00h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 17m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Connecticut
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Fairfield and Darien.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fairfield and Darien.
-
1
Start on Post Road
1.3 mi · 2 min · Post Road
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2
Turn slight left onto Jelliff Lane
1019 ft · 21 sec · Jelliff Lane
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3
Take the ramp straight toward I 95 South: New York City
1229 ft · 30 sec
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4
Merge slight left
9.4 mi · 13 min
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5
Take the exit slight right toward US 1: Post Road
858 ft · 25 sec
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6
Turn left onto Post Road
1.4 km · 1 min · Post Road
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7
Turn right
59 m · 14 sec
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8
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Fairfield and Darien.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 95 South
Merge slight left
9.41 mi · 00h 13m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Cloudy leaving Fairfield and Slight Chance Rain Showers near Darien.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fairfield to Darien?
The road trip is about 12.2 miles (19.7 km) and usually takes 00h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Westport is a useful midpoint, sitting about 6.1 miles from Fairfield and 6.2 miles from Darien.
How much longer is the road route than the straight-line distance?
The direct path is about 11.6 miles (18.6 km), while the road route adds roughly 0.6 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.70 one way or $3.39 round trip. Estimated CO2 is about 3.8 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Fairfield and Slight Chance Rain Showers near Darien.
Stop Ideas Near Westport
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Norwalk City Hall parking
Bridgeport City Hall
Town Hall
Old Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Westport.
Bridgeport
Stamford Transportation Center
Union Station
Croton–Harmon station
Flight Path Map
This map shows the direct air route between Fairfield and Darien. Straight-line distance: 11.54 mi (18.57 km).
#1 Fairfield
Town in Connecticut, United States of America
| Population | 62,215 |
| Coordinates | 41.1412100, -73.2637300 |
| Altitude | 10 |
| Country | United States |
#2 Darien
Town in Connecticut
| Population | 21,693 |
| Coordinates | 41.0787100, -73.4692900 |
| Altitude | 14 |
| Country | United States |
End: Darien (-73.46929, 41.07871)
Estimated Travel Time
Distance: 20 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 24m |
| 40 mph (64.37 km/h) | 00h 18m |
| 50 mph (80.47 km/h) | 00h 14m |
| 60 mph (96.56 km/h) | 00h 12m |
| 70 mph (112.65 km/h) | 00h 10m |
| 80 mph (129 km/h) | 00h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $1.70 | $3.39 |
| Mid-grade | $4.46 | $1.92 | $3.83 |
| Premium | $4.86 | $2.09 | $4.18 |
| Diesel | $6.00 | $2.58 | $5.16 |
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 Connecticut · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.