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

Distance from IAD Airport to Prince William, VA

Distance

20 mi

Time

37 minutes

Gas Cost

$2 - $4

Helpful Inaccurate

There are 14.24 miles from Washington Dulles International Airport (IAD) to Prince William in southwest direction and 20 miles (32.19 kilometers) by car, following the I-66 route.

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

This is the fastest route from IAD Airport to Prince William, VA. The halfway point is Centreville, VA.

IAD Airport and Prince William, VA are in the same time zone (EDT). Current time in both locations is 4:06 am.

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Lowest Price Rental Cars in IAD Airport

Planning on renting a car to go from IAD Airport to Prince William, VA? 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 0.82 gallons of gas to cover the route between IAD Airport and Prince William, VA.

The estimated cost of gas to go from IAD Airport to Prince William is $2.99.

During the route, an average car will release 16.10 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 $3.63 per gallon of regular gas. Price last updated on March 18, 2026.
Read more about our CO₂ calculation.

Halfway Point Between IAD Airport and Prince William, VA

If you want to meet halfway between IAD Airport and Prince William, VA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.832523 and -77.452461, or 38º 49' 57.0828" N, 77º 27' 8.8596" W. This location is 10.23 miles away from IAD Airport and Prince William, VA and it would take approximately 18 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Centreville, VA, situated 12 miles from IAD Airport and 12 miles from Prince William, VA. It would take 22 minutes to go from IAD to Centreville and 15 minutes to go from Prince William to Centreville.