Distance between cities › USA › North Carolina › Mill Spring, NC › Distance from Mill Spring to Washington Dulles International Airport Book Hotels

Distance from Mill Spring, NC to IAD Airport

Distance

462 mi

Time

9 hours

Gas Cost

$42 - $82

Helpful Inaccurate

There are 361.80 miles from Mill Spring to Washington Dulles International Airport (IAD) in northeast direction and 462 miles (743.52 kilometers) by car, following the I-81 and US-11 route.

Mill Spring and IAD Airport are 9 hours far apart, if you drive non-stop .

This is the fastest route from Mill Spring, NC to IAD Airport. The halfway point is Salem, VA.

Mill Spring, NC and IAD Airport are in the same time zone (EDT). Current time in both locations is 4:39 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Mill Spring, NC to IAD Airport:

Lowest Price Rental Cars in Mill Spring, NC

Planning on renting a car to go from Mill Spring, NC to IAD Airport? Here there are some offers to rent a car in Mill Spring, NC

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mill Spring »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 18.55 gallons of gas to cover the route between Mill Spring, NC and IAD Airport.

The estimated cost of gas to go from Mill Spring to IAD Airport is $59.45.

During the route, an average car will release 363.51 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Mill Spring, NC and IAD Airport

If you want to meet halfway between Mill Spring, NC 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 37.289257 and -80.109390, or 37º 17' 21.3252" N, 80º 6' 33.804" W. This location is 231 miles away from Mill Spring, NC and IAD Airport and it would take approximately 4 hours 30 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Salem, VA, situated 239 miles from Mill Spring, NC and 227 miles from IAD Airport. It would take 4 hours 3 mins to go from Mill Spring to Salem and 3 hours 35 mins to go from IAD to Salem.