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Distance from Rainbow, TX to IAD Airport

Distance

1,387 mi

Time

1 day

Gas Cost

$127 - $247

Helpful Inaccurate

There are 1,224.75 miles from Rainbow to Washington Dulles International Airport (IAD) in northeast direction and 1,387 miles (2,232.16 kilometers) by car, following the I-40 route.

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

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

Please note the time difference between Rainbow, TX and IAD Airport is 1 hour. The current time in Rainbow is 3:39 pm and the current time in IAD Airport is 4:39 pm.

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Lowest Price Rental Cars in Rainbow, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Rainbow »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 55.68 gallons of gas to cover the route between Rainbow, TX and IAD Airport.

The estimated cost of gas to go from Rainbow to IAD Airport is $178.41.

During the route, an average car will release 1,090.96 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 Rainbow, TX and IAD Airport

If you want to meet halfway between Rainbow, 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 35.960842 and -87.444565, or 35º 57' 39.0312" N, 87º 26' 40.434" W. This location is 693.27 miles away from Rainbow, TX and IAD Airport and it would take approximately 12 hours 29 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Lyles, TN, situated 706 miles from Rainbow, TX and 702 miles from IAD Airport. It would take 11 hours 19 mins to go from Rainbow to Lyles and 10 hours 52 mins to go from IAD to Lyles.