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Distance from Richardson, TX to IAD Airport

Distance

1,316 mi

Time

23 hours 38 mins

Gas Cost

$123 - $238

Helpful Inaccurate

There are 1,152.26 miles from Richardson to Washington Dulles International Airport (IAD) in northeast direction and 1,316 miles (2,117.90 kilometers) by car, following the I-30 and US-67 route.

Richardson and IAD Airport are 23 hours 38 mins far apart, if you drive non-stop .

This is the fastest route from Richardson, TX to IAD Airport. The halfway point is Bellevue, TN.

Please note the time difference between Richardson, TX and IAD Airport is 1 hour. The current time in Richardson is 6:18 am and the current time in IAD Airport is 7:18 am.

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Lowest Price Rental Cars in Richardson, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Richardson »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 52.84 gallons of gas to cover the route between Richardson, TX and IAD Airport.

The estimated cost of gas to go from Richardson to IAD Airport is $172.38.

During the route, an average car will release 1,035.32 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 $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Richardson, TX and IAD Airport

If you want to meet halfway between Richardson, TX 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 36.135036 and -86.912827, or 36º 8' 6.1296" N, 86º 54' 46.1772" W. This location is 657.91 miles away from Richardson, TX and IAD Airport and it would take approximately 11 hours 49 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Bellevue, TN, situated 650 miles from Richardson, TX and 669 miles from IAD Airport. It would take 10 hours 16 mins to go from Richardson to Bellevue and 10 hours 19 mins to go from IAD to Bellevue.

Major City Closest to Halfway Point

The major city closest to the halfway point between Richardson, TX and IAD Airport is Nashville, TN, situated 662 miles from Richardson, TX and 655 miles from IAD Airport. It would take 10 hours 26 mins to go from Richardson to and 10 hours 1 min to go from IAD to Nashville.