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Distance from Sumneytown, PA to IAD Airport

Distance

186 mi

Time

4 hours 8 mins

Gas Cost

$19 - $36

Helpful Inaccurate

There are 142.90 miles from Sumneytown to Washington Dulles International Airport (IAD) in southwest direction and 186 miles (299.34 kilometers) by car, following the I-95 route.

Sumneytown and IAD Airport are 4 hours 8 mins far apart, if you drive non-stop .

This is the fastest route from Sumneytown, PA to IAD Airport. The halfway point is Aberdeen, MD.

Sumneytown, PA and IAD Airport are in the same time zone (EDT). Current time in both locations is 6:40 pm.

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Lowest Price Rental Cars in Sumneytown, PA

Planning on renting a car to go from Sumneytown, PA to IAD Airport? Here there are some offers to rent a car in Sumneytown, PA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sumneytown »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 7.45 gallons of gas to cover the route between Sumneytown, PA and IAD Airport.

The estimated cost of gas to go from Sumneytown to IAD Airport is $26.26.

During the route, an average car will release 145.99 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 $3.52 per gallon of regular gas. Price last updated on March 18, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Sumneytown, PA and IAD Airport

If you want to meet halfway between Sumneytown, PA and IAD Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.539001 and -76.178642, or 39º 32' 20.4036" N, 76º 10' 43.1112" W. This location is 92.77 miles away from Sumneytown, PA and IAD Airport and it would take approximately 2 hours 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Aberdeen, MD, situated 94 miles from Sumneytown, PA and 96 miles from IAD Airport. It would take 1 hour 41 mins to go from Sumneytown to Aberdeen and 1 hour 53 mins to go from IAD to Aberdeen.