Distance between cities › USA › Virginia › IAD, VA › Distance from Washington Dulles International Airport to Potomac Book Hotels

Distance from IAD Airport to Potomac, MD

Distance

24 mi

Time

37 minutes

Gas Cost

$2 - $5

Helpful Inaccurate

There are 14.05 miles from Washington Dulles International Airport (IAD) to Potomac in northeast direction and 24 miles (38.62 kilometers) by car, following the Dulles Toll Road route.

IAD Airport and Potomac are 37 minutes far apart, if you drive non-stop .

This is the fastest route from IAD Airport to Potomac, MD. The halfway point is Vienna, VA.

IAD Airport and Potomac, MD are in the same time zone (EDT). Current time in both locations is 11:57 am.

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Lowest Price Rental Cars in IAD Airport

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Washington Dulles International Airport »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.95 gallons of gas to cover the route between IAD Airport and Potomac, MD.

The estimated cost of gas to go from IAD Airport to Potomac is $3.34.

During the route, an average car will release 18.56 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 IAD Airport and Potomac, MD

If you want to meet halfway between IAD Airport and Potomac, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.934834 and -77.265968, or 38º 56' 5.4024" N, 77º 15' 57.4848" W. This location is 11.79 miles away from IAD Airport and Potomac, MD and it would take approximately 18 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Vienna, VA, situated 14 miles from IAD Airport and 13 miles from Potomac, MD. It would take 27 minutes to go from IAD to Vienna and 19 minutes to go from Potomac to Vienna.