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Distance from Onemo, VA to IAD Airport

Distance

174 mi

Time

4 hours

Gas Cost

$17 - $32

Helpful Inaccurate

There are 125.35 miles from Onemo to Washington Dulles International Airport (IAD) in northwest direction and 174 miles (280.03 kilometers) by car, following the I-95 route.

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

This is the fastest route from Onemo, VA to IAD Airport. The halfway point is Port Royal, VA.

Onemo, VA and IAD Airport are in the same time zone (EDT). Current time in both locations is 6:09 am.

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Lowest Price Rental Cars in Onemo, VA

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Onemo »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 6.97 gallons of gas to cover the route between Onemo, VA and IAD Airport.

The estimated cost of gas to go from Onemo to IAD Airport is $23.32.

During the route, an average car will release 136.58 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 $3.35 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Onemo, VA and IAD Airport

If you want to meet halfway between Onemo, VA 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 38.142281 and -77.166061, or 38º 8' 32.2116" N, 77º 9' 57.8196" W. This location is 86.79 miles away from Onemo, VA and IAD Airport and it would take approximately 2 hours to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Port Royal, VA, situated 87 miles from Onemo, VA and 86 miles from IAD Airport. It would take 1 hour 52 mins to go from Onemo to Port Royal and 1 hour 50 mins to go from IAD to Port Royal.