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Distance from Buffalo Gap, TX to IAD Airport

Distance

1,509 mi

Time

1 day 3 hours

Gas Cost

$138 - $269

Helpful Inaccurate

There are 1,334.35 miles from Buffalo Gap to Washington Dulles International Airport (IAD) in northeast direction and 1,509 miles (2,428.50 kilometers) by car, following the I-40 route.

Buffalo Gap and IAD Airport are 1 day 3 hours far apart, if you drive non-stop .

This is the fastest route from Buffalo Gap, TX to IAD Airport. The halfway point is Parker Crossroads, TN.

Please note the time difference between Buffalo Gap, TX and IAD Airport is 1 hour. The current time in Buffalo Gap is 12:50 pm and the current time in IAD Airport is 1:50 pm.

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Lowest Price Rental Cars in Buffalo Gap, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Buffalo Gap »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 60.59 gallons of gas to cover the route between Buffalo Gap, TX and IAD Airport.

The estimated cost of gas to go from Buffalo Gap to IAD Airport is $194.12.

During the route, an average car will release 1,187.04 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 Buffalo Gap, TX and IAD Airport

If you want to meet halfway between Buffalo Gap, 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 35.769142 and -88.459908, or 35º 46' 8.9112" N, 88º 27' 35.6688" W. This location is 754.32 miles away from Buffalo Gap, TX and IAD Airport and it would take approximately 13 hours 34 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Parker Crossroads, TN, situated 755 miles from Buffalo Gap, TX and 757 miles from IAD Airport. It would take 12 hours 15 mins to go from Buffalo Gap to Parker Crossroads and 11 hours 35 mins to go from IAD to Parker Crossroads.

Major Cities Along the Route

Some major cities along the route include Knoxville, TN,Nashville, TN,Memphis, TN,Little Rock, AR,Garland, TX,Mesquite, TX,Dallas, TX,Irving, TX,Grand Prairie, TX,Arlington, TX,Fort Worth, TX, and Abilene, TX.