Killingworth to Danbury is 65.4 miles and takes about 1 hour 32 minutes via I-84, I-691, and Durham Road, with a fuel budget near $11 and enough daylight to finish in a day. This drive stays within Connecticut, moving from the Northeast region to another part of the Northeast. It's a straightforward, highway-focused trip that’s ideal for a single-day excursion. You’ll find it’s a practical route with minimal fuss, perfect for when you need to get from point A to point B efficiently. Consider this a dependable option for a quick journey.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
32.7 miles from Killingworth, CT
A natural place for your longest stop of the day
, about 51m into the drive
.
Main Roads
Road
Distance
Duration
I 84
34.6 mi
42m
I 691
7.8 mi
9m
Durham Road
5.5 mi
9m
Main Street
3.3 mi
7m
North Branford Road
2.8 mi
4m
North Madison Road
2.6 mi
4m
Baileyville Road
2.3 mi
4m
Meriden Road
2 mi
3m
Longest stretch:
I 84
— 34.6 mi, about 42m
Turn-by-Turn Driving Directions
Step-by-step road directions between Killingworth, CT and Danbury, CT.
1
Start on this road
166 ft·13 sec·this road
2
At end of road, turn right
140 ft·13 sec
3
Turn right onto CT 80
485 ft·8 sec·Deep River Road
4
Enter roundabout onto CT 80
164 ft·3 sec·North Branford Road
5
Continue on CT 80
2.8 mi·4 min·North Branford Road
6
Continue on CT 80
1.3 mi·1 min·Old Toll Road
7
Enter roundabout onto CT 79
10 ft·0 sec·Durham Road
8
Continue on CT 79
5.5 mi·9 min·Durham Road
9
Continue on CT 79
2.6 mi·4 min·North Madison Road
10
Turn slight right onto CT 17
1.4 mi·3 min·Main Street
11
Turn left onto CT 147
0.9 mi·2 min·Middlefield Road
12
Continue on CT 147
1.8 mi·3 min·Main Street
13
Turn left onto Baileyville Road
2.3 mi·4 min·Baileyville Road
14
Turn left onto CT 66
2.0 mi·3 min·Meriden Road
Use the straight / slight right lanes.
15
Continue on I 691
7.8 mi·9 min·I 691
Use the straight / slight right lanes.
16
Keep slight left at fork
1.0 mi·1 min
Exit 8BToward I 84 West: Waterbury
17
Merge onto I 84
35 mi·42 min·I 84
Use the straight / slight right lanes.
18
Take the exit
0.1 mi·18 sec
Exit 5Toward CT 39, CT 53: Downtown Danbury, BethelUse the slight right lane.
19
Turn right onto CT 39
0.9 mi·1 min·North Main Street
20
Turn right onto Library Place
234 ft·10 sec·Library Place
21
Arrive at destination
Library Place
Trip Plan
Given the relatively short duration of 1 hour and 32 minutes, this trip is easily manageable in a single day with plenty of flexibility. You won't need to plan for extensive stops, but keeping an eye on your fuel gauge is always a good idea, especially with a projected cost of around $11. Aim to depart Killingworth mid-morning to avoid the busiest commuter traffic. A practical tip for this route: be aware that the transition from the interstate to Durham Road may involve navigating local traffic lights and intersections, so allow a little extra time for that final approach into Danbury.
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 32.7 miles from Killingworth, CT, or about 51m into the drive.
The longest continuous stretch on this route runs about 34.6 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 14 miles or 24m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 32.7 miles or 51m 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 19m
Traffic, exits, and arrival timing usually matter more near Danbury, CT than in the middle of the route.
Before You Leave
+
Open the route before leaving Killingworth, CT so your first major turns are already loaded.
Day 1
Settle into the route from Killingworth, CT
This is one driving day of about 65.4 miles and 1h 32m.
Your first comfortable stop window is around 14 miles from Killingworth, CT.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 84 for about 34.6 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 64.3 — 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
At end of road, turn right
Navigation decision point
6
0.1 mi into trip|~0m in|CT 80 / North Branford Road
Enter roundabout onto CT 80 / North Branford Road
Roundabout - know your exit number before entering
6
19 mi into trip|~34m in|CT 66 / Meriden Road
Turn left onto CT 66 / Meriden Road
Lane positioning matters here
Use the straight / slight right lanes.
6
28.8 mi into trip|~46m in
Keep slight left at fork toward I 84 West: Waterbury
Highway fork - watch signs carefully
Exit 8B
Toward I 84 West: Waterbury
8
64.3 mi into trip|~1h 30m in
Take the exit toward CT 39, CT 53: Downtown Danbury, Bethel
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 5
Toward CT 39, CT 53: Downtown Danbury, Bethel
Fuel & Cost
Regular Gas
$10.53 one way
$21.06 round trip
$4.09/gal25.4 MPG avg23 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.50
$11.58
$23.17
premium
$4.86
$12.52
$25.05
diesel
$5.61
$14.44
$28.88
Estimated Tolls: $0.09
Old Toll Road
(1.3 mi)$0.09
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
$11
Tolls
$0
Meals
$25–$50
Total
$36–$61
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 22.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $7 in charging
· 0 stops
· 65% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
19.6
0
$6.87
$3.14
Efficient EV
16.4
0
$5.72
$2.62
EV Truck/SUV
26.2
0
$9.16
$4.19
Gas CO2
23 kg
EV CO2
8 kg (65% 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 15, 2026
Origin
Killingworth, CT
Late night
in Killingworth on Sunday
Local time
12:33 AM
EDT
Current temp
43°F
Unavailable
Live forecast
Destination
Danbury, CT
Late night
in Danbury on Sunday
Local time
12:33 AM
EDT
Current temp
61°F
Unavailable
Live forecast
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
18 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
1h 32m 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.
More Details
What kind of drive is this?
This route is primarily a highway-focused drive, with 65% of it on faster roads. You'll experience a longest uninterrupted stretch of 34.6 miles on I-84, offering a consistent pace for a significant portion of your journey. While much of the drive utilizes interstate highways like I-84 and I-691, the inclusion of Durham Road suggests a transition to more local driving as you approach your destination. This mix means you can expect periods of steady, high-speed travel interspersed with a more grounded, potentially slower, approach on the final leg.
65% 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: 34.6 mi on I 84.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 84 and I 691. 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.
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 65.4 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: Navigation decision point; at 0.1 miles (CT 80 / North Branford Road): Roundabout - know your exit number before entering; at 19 miles (CT 66 / Meriden Road): Lane positioning matters here.
Doable as a same-day drive at 1h 32m. Total distance: 65.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 32m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (65%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 34.6 miles on I 84. The full list of main roads is in the Roads section above.
Expect about $0.09 in tolls one way, starting with Old Toll Road. 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. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start: Navigation decision point; at 0.1 miles (CT 80 / North Branford Road): Roundabout - know your exit number before entering; at 19 miles (CT 66 / Meriden Road): Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Danbury, CT before heading back.
