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Distance from Webb, AL to IAD Airport

Distance

847 mi

Time

16 hours 28 mins

Gas Cost

$78 - $151

Helpful Inaccurate

There are 690.57 miles from Webb to Washington Dulles International Airport (IAD) in northeast direction and 847 miles (1,363.11 kilometers) by car, following the I-85 route.

Webb and IAD Airport are 16 hours 28 mins far apart, if you drive non-stop .

This is the fastest route from Webb, AL to IAD Airport. The halfway point is Gastonia, NC.

Please note the time difference between Webb, AL and IAD Airport is 1 hour. The current time in Webb is 12:28 am and the current time in IAD Airport is 1:28 am.

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Lowest Price Rental Cars in Webb, AL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webb »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 34.02 gallons of gas to cover the route between Webb, AL and IAD Airport.

The estimated cost of gas to go from Webb to IAD Airport is $109.01.

During the route, an average car will release 666.55 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 Webb, AL and IAD Airport

If you want to meet halfway between Webb, AL 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 35.282536 and -81.185440, or 35º 16' 57.1296" N, 81º 11' 7.584" W. This location is 423.57 miles away from Webb, AL and IAD Airport and it would take approximately 8 hours 14 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Gastonia, NC, situated 426 miles from Webb, AL and 430 miles from IAD Airport. It would take 7 hours 7 mins to go from Webb to Gastonia and 6 hours 46 mins to go from IAD to Gastonia.

Major City Closest to Halfway Point

The major city closest to the halfway point between Webb, AL and IAD Airport is Charlotte, NC, situated 448 miles from Webb, AL and 414 miles from IAD Airport. It would take 7 hours 29 mins to go from Webb to and 6 hours 29 mins to go from IAD to Charlotte.