How far is Fairfield, CT from Killingworth, CT?
The driving distance from Fairfield, CT to Killingworth, CT is about 44.6 miles (71.7 km), with a travel time of about 01h 06m by car.
- The straight-line flight distance is about 39.3 miles (63.3 km).
- For a round trip, plan for roughly 02h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 06m.
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.
The most populous city in New Haven County, Connecticut.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fairfield and Killingworth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fairfield and Killingworth.
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1
Start on Post Road
57 m · 12 sec · Post Road
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2
Turn left onto Mill Plain Road
1048 ft · 22 sec · Mill Plain Road
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3
Take the ramp right toward I 95 North
1126 ft · 27 sec
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4
Merge slight left
22.8 mi · 31 min
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5
Take the exit slight right toward I 91 North: Hartford
1 km · 1 min
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6
Continue straight
2.2 mi · 3 min
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7
Take the exit slight right toward CT 17, CT 80: North Branford
680 ft · 17 sec
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8
Keep slight right to continue on CT 80 East: North Branford
149 m · 12 sec
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9
Turn straight onto Foxon Boulevard
1.2 km · 2 min · Foxon Boulevard
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10
Continue on Foxon Road
7.3 mi · 11 min · Foxon Road
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11
Continue on Old Toll Road
5.9 mi · 9 min · Old Toll Road
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12
Enter the roundabout and take exit 2 toward Old Toll Road
100 m · 5 sec · Old Toll Road
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13
Exit the roundabout onto Old Toll Road
1.3 mi · 2 min · Old Toll Road
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14
Continue on North Branford Road
2.8 mi · 4 min · North Branford Road
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15
Enter the roundabout and take exit 2 toward Deep River Road
45 m · 3 sec · Deep River Road
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16
Exit the roundabout onto Deep River Road
147 m · 14 sec · Deep River Road
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17
Turn left
43 m · 15 sec
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18
Turn left
51 m · 12 sec
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Fairfield and Killingworth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 95 North
Merge slight left
22.8 mi · 00h 31m
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.
Mostly Sunny leaving Fairfield and Mostly Sunny near Killingworth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fairfield to Killingworth?
The road trip is about 44.6 miles (71.7 km) and usually takes 01h 06m 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?
West Haven is a useful midpoint, sitting about 22.2 miles from Fairfield and 22.3 miles from Killingworth.
How much longer is the road route than the straight-line distance?
The direct path is about 39.3 miles (63.3 km), while the road route adds roughly 5.3 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 EDT. If you want a more comfortable same-day return, try to leave by 4:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.19 one way or $12.39 round trip. Estimated CO2 is about 14 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Fairfield and Mostly Sunny near Killingworth.
Stop Ideas Near West Haven
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 West Haven.
Union Station
Bridgeport
Wallingford station
Meriden Transit Center
Flight Path Map
This map shows the direct air route between Fairfield and Killingworth. Straight-line distance: 39.33 mi (63.3 km).
#1 Fairfield
Town in Connecticut, United States of America
| Population | 62,215 |
| Coordinates | 41.1412100, -73.2637300 |
| Altitude | 10 |
| Country | United States |
#2 Killingworth
Human settlement in Middlesex County, Connecticut, United States of America
| Population | 6,340 |
| Coordinates | 41.3581500, -72.5637000 |
| Altitude | 117 |
| Country | United States |
End: Killingworth (-72.5637, 41.35815)
Estimated Travel Time
Distance: 72 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 29m |
| 40 mph (64.37 km/h) | 01h 06m |
| 50 mph (80.47 km/h) | 00h 53m |
| 60 mph (96.56 km/h) | 00h 44m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $6.19 | $12.39 |
| Mid-grade | $4.46 | $7.00 | $13.99 |
| Premium | $4.86 | $7.63 | $15.25 |
| Diesel | $6.00 | $9.42 | $18.83 |
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 · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.