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Distance from Sinton, TX to IAD Airport

Distance

1,584 mi

Time

1 day 5 hours

Gas Cost

$148 - $287

Helpful Inaccurate

There are 1,374.90 miles from Sinton to Washington Dulles International Airport (IAD) in northeast direction and 1,584 miles (2,549.20 kilometers) by car, following the I-10 route.

Sinton and IAD Airport are 1 day 5 hours far apart, if you drive non-stop .

This is the fastest route from Sinton, TX to IAD Airport. The halfway point is Tuscaloosa, AL.

Please note the time difference between Sinton, TX and IAD Airport is 1 hour. The current time in Sinton is 2:25 am and the current time in IAD Airport is 3:25 am.

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Lowest Price Rental Cars in Sinton, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sinton »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 63.62 gallons of gas to cover the route between Sinton, TX and IAD Airport.

The estimated cost of gas to go from Sinton to IAD Airport is $207.53.

During the route, an average car will release 1,246.43 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 Sinton, TX and IAD Airport

If you want to meet halfway between Sinton, 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 33.155155 and -87.538284, or 33º 9' 18.558" N, 87º 32' 17.8224" W. This location is 792.06 miles away from Sinton, TX and IAD Airport and it would take approximately 14 hours 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Tuscaloosa, AL, situated 804 miles from Sinton, TX and 792 miles from IAD Airport. It would take 12 hours 51 mins to go from Sinton to Tuscaloosa and 12 hours 7 mins to go from IAD to Tuscaloosa.