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Distance from Otto, TX to IAD Airport

Distance

1,391 mi

Time

1 day 1 hour

Gas Cost

$130 - $252

Helpful Inaccurate

There are 1,206.05 miles from Otto to Washington Dulles International Airport (IAD) in northeast direction and 1,391 miles (2,238.60 kilometers) by car, following the I-40 route.

Otto and IAD Airport are 1 day 1 hour far apart, if you drive non-stop .

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

Please note the time difference between Otto, TX and IAD Airport is 1 hour. The current time in Otto is 2:52 am and the current time in IAD Airport is 3:52 am.

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Lowest Price Rental Cars in Otto, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Otto »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 55.87 gallons of gas to cover the route between Otto, TX and IAD Airport.

The estimated cost of gas to go from Otto to IAD Airport is $182.25.

During the route, an average car will release 1,094.64 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 Otto, TX and IAD Airport

If you want to meet halfway between Otto, 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 35.883034 and -87.682869, or 35º 52' 58.9224" N, 87º 40' 58.3284" W. This location is 695.60 miles away from Otto, TX and IAD Airport and it would take approximately 12 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 Only, TN, situated 716 miles from Otto, TX and 718 miles from IAD Airport. It would take 11 hours 25 mins to go from Otto to Only and 11 hours 4 mins to go from IAD to Only.