Distance between cities › USA › Connecticut › Windham, CT › Distance from Windham to Union Book Hotels

Distance from Windham, CT to Union, NH

Distance

175 mi

Time

3 hours 39 mins

Gas Cost

$16 - $32

There are 136.59 miles from Windham to Union in northeast direction and 175 miles (281.64 kilometers) by car, following the I-495 route.

Windham and Union are 3 hours 39 mins far apart, if you drive non-stop .

This is the fastest route from Windham, CT to Union, NH.

Windham, CT and Union, NH are in the same time zone (EDT). Current time in both locations is 6:44 am.

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Lowest Price Rental Cars in Windham, CT

Planning on renting a car to go from Windham, CT to Union, NH? Here there are some offers to rent a car in Windham, CT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Windham »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 7.02 gallons of gas to cover the route between Windham, CT and Union, NH.

The estimated cost of gas to go from Windham to Union is $22.90.

During the route, an average car will release 137.55 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Windham, CT and Union, NH

If you want to meet halfway between Windham, CT and Union, NH or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.573504 and -71.419772, or 42º 34' 24.6144" N, 71º 25' 11.1792" W. This location is 87.41 miles away from Windham, CT and Union, NH and it would take approximately 1 hour 49 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Westford, MA, situated 88 miles from Windham, CT and 89 miles from Union, NH. It would take 1 hour 52 mins to go from Windham to Westford and 1 hour 51 mins to go from Union to Westford.

Major City Closest to Halfway Point

The major city closest to the halfway point between Windham, CT and Union, NH is Boston, MA, situated 94 miles from Windham, CT and 89 miles from Union, NH. It would take 2 hours 3 mins to go from Windham to Boston and 1 hour 57 mins to go from Union to Boston.