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Distance from Katy, TX to SEA Airport

Distance

2,310 mi

Time

1 day 16 hours

Gas Cost

$211 - $411

Helpful Inaccurate

There are 1,863.32 miles from Katy to Seattle–Tacoma International Airport (SEA) in northwest direction and 2,310 miles (3,717.58 kilometers) by car, following the I-84 route.

Katy and SEA Airport are 1 day 16 hours far apart, if you drive non-stop .

This is the fastest route from Katy, TX to SEA Airport. The halfway point is Bosler, WY.

Please note the time difference between Katy, TX and SEA Airport is 2 hours. The current time in Katy is 3:44 pm and the current time in SEA Airport is 1:44 pm.

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Lowest Price Rental Cars in Katy, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Katy »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 92.75 gallons of gas to cover the route between Katy, TX and SEA Airport.

The estimated cost of gas to go from Katy to SEA Airport is $297.18.

During the route, an average car will release 1,817.21 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 Katy, TX and SEA Airport

If you want to meet halfway between Katy, TX and SEA Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.430672 and -105.905685, or 41º 25' 50.4192" N, 105º 54' 20.466" W. This location is 1,154.77 miles away from Katy, TX and SEA Airport and it would take approximately 20 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 Bosler, WY, situated 1,282 miles from Katy, TX and 1,189 miles from SEA Airport. It would take 19 hours 1 min to go from Katy to Bosler and 18 hours 6 mins to go from SEA to Bosler.